Thank you most sincerely for choosing one of our Pentax 35mm SLR cameras. Before starting to operate this camera, please be sure to read this operating manual very carefully to familiarize yourself with every detail of the features and functions it has to offer. We hope you will enjoy fine photography with this camera for many years to come, Commercially available lenses and acces- sories produced by other manufacturers are not made to our precise specifica- tions and therefore, may cause difficul- ties with — or actual damage to — your Pentax camera. We do not assume any responsibility or liability for dif- ficulties resulting from the use of lenses and accessories made by other manufacturers.TABLE OF CONTENTS. Features 2 Nomenclature of working parts .~ 4 PREPARATIONS Inserting batteries «. Co 6 Attaching and detaching lens . 8 Film wind lever 9 Main switch, shutter release button, shutter dial Film sven Loading film Unloading film oenencnnnneeiesenne Strap and soft case BASIC OPERATION Viewfinder displays Focusing Holding camera Shooting in Programmed AE mode .. Shooting in Aperture-priority AE Mode wmnen- 22 ‘Shooting in Metered Manual mode ADVANCED OPERATION Using Pentax dedicated auto flash units Using Programmed Auto Flash mode Exposure-memory lock Self-timer Using 100 4setting .... Using B (Bulb) setting « Depth of field .. Depth-of-field preview Infrared index mark Warning displays Programmed AE diagram, met shutter/aperture coupling range Diopter correction, mount adapter K, eyecup P Precautions on batteries. Specifications ‘Taking care of your camera Warranty policyWhen this camera is used with any SMC Pentax-A ‘or SMC Pentax-F lens, it offers four exposure modes: Programmed AE, Aperture-priority AE, Metered Manual and Programmed Auto Flash. When the lens aperture is set to “A” position, the Programmed AE mode can be used. When the lens aperture is set to any f-stop other than the "A" setting, the Aperture-priority AE or Metered Manual modes can be used. ‘© When the conventional K-mount lens is used, ‘the camera operates in the Aperture-priority AE or Metered Manual mode. 22 Programmed AE Mode The camera automatically selects the most suitable combination of shutter speed and aperture to obtain correct exposure, simultaneously changing the combination according to the brightness of the subject. This mode is suitable for those who do not want to be bothered by setting exposure controls. Aperture-priority AE Mode When you set the aperture manually, the shutter speed is automatically adjusted according to the brightness of the subject to provide correct exposure. This mode is suitable for taking pictures for which the control of the depth of field is desirable, such as portraits, etc. Metered Manual Mode ‘The combination of shutter speed end aperture completely up to you. Guided by the meter indication in the viewfinder, you can adjust both controls to obtain proper exposure. If necessary, deliberate over- or underexposure can be obtained.When you use a Pentax dedicated auto flash on this camera in its Programmed AE mode, the camera automatically selects the proper aperture and shutter speed to control flash output for proper flash pictures, © The camera does not operate unless the batteries are properly inserted. Be sure to check how they are inserted before operating it. Also check if the main meter switch is set to ON or OFF. © Most fiashes made by others can be used on this camera, but Pentax dedicated flashes will offer more convenient functions. Even if you use a flash with TTL auto flash provision, this cemera does not provide TTL auto flash operation. ‘© When you use the accessories such as Extension Tubes, Microscope Adapter, etc. that are mounted between the camera body and lens, this camera operates in the Aperture-priority AE or Metered Manual mode. The Programmed AE mode cannot be used.@ Film-rewind crank ® Viewfinder eyepiece © Film-sprocket spool Film-take-up spool ® Back cover © Film-teader-end mark ® Film-rewind button © Shutter curtain © Tripod socket @ Battery-chamber cap ® Film chamber06 INSERTING BATTERIES This camera is powered by two 1.5-volt alkaline or silver- oxide batteries. (Lithium batteries are not usable.) © Open the battery chamber cover by sliding it in the direction of the arrow. © Insert the two betteries into the chamber with their (+) sides facing upward, and close the cover. © Asillustrated, turn the power on by sliding the main switch in the direction of the arrow.© Press the shutter release button half-way and make sure that a shutter speed appears on the left side of the viewfinder. Timer switch ‘The built-in timer switch automatically turns the power off in about ten seconds after you release your finger off the shutter button. Battery check If no shutter speed is displayed in the viewfinder even with a slight pressure on the shutter button, the batteries have no power or may be improperly inserted. When batteries weaken When the batteries are becoming weak, the shutter speed displayed in the viewfinder starts to blink slowly at the speed of once per second. If so, replace the batteries immediately. If the batteries are completely exhausted, the shutter button does not release the shutter. 1000ATTACHING AND DETACHING LENS To mount or interchange Pentak K, KA and KAF mount lenses, follow the steps below. Remove the body mount cap and the rear lens cap, If the finder cap is still on the eyepiece, remove Align the red dot on the camera body with the red dot on the lens (See @, @). Seat the lens in the body mount and turn it clockwise until the lens locks with a click. When mounting the lans in dim light, method (@) is recommended. This method allows lens mounting by touch. Align the raised node on lens barrel with the lens release by touch. Then turn and lock as above. ‘© To remove the lens cap, press in on the notches at both sides. ‘© To remove the lens, turn the lens counter-clockwise while pressing the lens release lever. © After removing a lens from the camera body, put the front ‘and rear lens caps to protect the lens from dust and stains. Note: Don’t damage or stain the electrical contact points on the mount face. When they become stained, wipe them with a clean, dry cloth.FILM WIND LEVER Setting the wind lever for repid shooting The film wind lever can be set at the stand-off position for faster film advance. Even if you remove your thumb from the lever, it remains et ‘the stand-off angle, ready for the next quick shot. After completing a series of pictures, the lever should be pushed in to the original position. Exposure counter The scale is indexed as follows: SeeQe2ede....,0200 240...036, Interlocked with the film wind mechanism, this counter indicates the number of exposed frames. Film advance stroke The film wind lever should be thrown as far as it goes. Note: The wind lever may stop in the middle of a stroke when the film comes to its end. Do not force the lever and rewind the film leaving the lever aMAIN SWITCH, SHUTTER RELEASE BUTTON, SHUTTER DIAL © Main switch To release the shutter, be sure to turn the main switch to ON. When the main switch is off, the shutter cannot be released and the meter remains off, © Shutter release button As you turn the main switch on and press the shutter relesse button half.way, the meter will turn on, and a further pressure on ‘the shutter button will release the shutter. ‘© Shutter spood dial When shooting in the Aperture-priority AE or Metered Manual mode, turn the shutter dial until the desired shutter speed aligns with the index (red line) A= Aperturepriority Al 1000 — 1 = 1/1000 - 1 sec. (Metered Manual) B = Bulb (long-time exposure) 100 4 = 1/100 sec. (Flash-sync speed) #10FILM DX FILM This camera automatically sets the ISO film speed of DX-coded film when it is loaded into the film chamber. Therefore, you are recommended to use only DX-coded film in this camera. (If non-DX film is loaded the camera will automatically set the film speed to 100, whatever film speed it may have; in other words, the only non-DX film usable for this camera is one with ISO 100.) 900000000000ay ‘ DX information panel The film speeds which can be automatically set by this camera range from ISO 25 to 1600, so be sure to use the DX-coded film having a film speed within this range. ieLOADING FILM Always load or unload film in the camera in shady spot, or shield it from direct sunlight with your body. © As illustrated, unfold the rewind crank by pushing it with your finger-nail. © Pull the rewind knob upwerds until the back cover snaps open. © Slide the film cartridge into the film chamber with the flat side up. Lock the cartridge in place by pushing the rewind knob down, rotating it slightly making sure that it grips the spool. Q Film chamber @ Guide rails © Sprocket teeth O Spool teeth © Film leader end mark © DX-information pins Keep the DX-information pins free from scratches, dirt, dust, te.slack As illustrated, pull the film leader out so that its end aligns with the @ film leader end mark (red bar); in other words, bring the film leader end within the length of the bar. Make sure that the perforations on the bottom side of the film have engaged the @ sprocket teeth @ Also make sure that the film is properly placed between the two @ guide rails. © Take up any slack left in the film so that the film is flat as shown, by rewinding it slightly into the cartridge. © When a film with a higher ISO number loaded, do not leave the camera out of the case for a long time. 138RK © Close the back cover, making sure that it has snapped firmly in © Cock the film lever while checking to see if the film rewind knob turns in the direction of the arrow. © Repeat making blank exposures until “0" appears in the exposure counter. The next frame is ready for the first shot. ‘The film-information window on the back cover will tell you if the film is loaded or not.UNLOADING FILM When you reach the end of the roll, the film wind lever will stop moving abruptly — maybe at some point in the middle of a stroke. Do not force the lever beyond the number of exposures shown on the cartridge. © Press the film rewind button recessed in the bottom of the camera. © Unfold the crank and turn it clockwise all the way until you feel it loosen when the film leader releases from the take-up spool. © When the rewinding is over, lift the rewind knob lightly to open the back cover, and take the cartridge out. If you accidentally opened the back cover without rewinding the film, close it immediately, since the film except the last several frames might be saved. Se‘STRAP AND SOFT CASE @ To attach the strap to the camera, first pass the ‘end of the strap through the strap lug on the camera, fold it back, then pass it through the strap ring, and through the strap clasp and the last ring. The strap end may be passed through the inside or outside of the clasp. @ Remove the front cover from the back cover. Put the camera in the back cover and put both case hooks around the camera’s strap eyelets. The camera is now held securaly in place. © The soft case for this camera is available in two sizes: P-S for the camera with a standard 50mm. lens, and P-L2 for the camera with a zoom lens such as 28 - 80mm.VIEWFINDER DISPLAYS Various exposure data described at right are displayed by LED on the left side of the viewfinder. LED = Light-Emitting Diode [7 Microprism /, Matte screen Programmed AE mode Metered Manual mode Shutter speeds from 111000 to 1 sec. “Flash-ready indication Overexposure indica- “1000” tion (blinks four times per second) Blinking “1’” Underexposure indica- tion (blinks four times per second) (The above two indications also appear when the exposure combination is out of the shutter/ aperture-coupling range or the metering range.) Camara-shake (slow-shutter-speed) warning 30 ~ 1 appears in orange Shutter speed in use (blinks)......Mlemory lock 17eFOCUSING You can focus in three ways, with the split- image, microprism, and/or matte field. To focus Using the split-image, turn the focusing ring until the two images in the split-image circle at the center of the focusing screen are perfectly aligned. When using the microprism collar, focus until the glitter disappears from inside the collar. With the matte field, focus until the image on the matte field appears sharp and crisp. Note: If the maximum aperture of the attached lons is smaller than f/5.6 (for example, t/8 as in the case of a long telephoto}, it is easier to focus on the matte field since the split-image and microprism collar areas become much too dark for satisfactory focusing. Diopter adjustment for viewfinder eyepi People who wear eyeglasses due to myopia, hypermetropia or presbyopia, sometimes find it difficult to focus while wearing their glasses. In this case, use the accessory diopter correction lenses M (See page 42).HOLDING CAMERA Proper holding of the camera is essential to minimize camera shake which causes blurred pictures. Practice holding and operating your camera before inserting your first film cartridge. Generally there are three basic ways to hold the camera. In any casa, hold the camera tightly to your face with your hands. The arips on this camera will help you keep a steady hold on your camera. Release the shutter gently while holding your breath. Strong pressure on the shutter release button may cause blurred photographs. Take a secure, well-balanced posture without straining yourself. The portion marked O in the illustration should be drawn to your body. It is 2 good idea to stabilize your body and the camera using a tree, building wall, table, etc. For long exposures or while using telephoto lenses, it is recommended to use a tripod in order to reduce camera shake to a minimum. 198SHOOTING IN PROGRAMMED AE MODE ‘© The camera is switched to the Programmed AE mode by just setting the lens aperture to the "'A’” position while keeping the Auto-lock Release Button on the lens. © You can leave the shutter dial set at any position. © Turn the main switch on, then press the shutter releese button half-way, and you will see “P’” and a shutter speed are displayed in the viewfinder. As you further press the shutter button, the shutter will be released. 250© When the subject is too bright or dark, "1000" or “1” blinks as a warning. When “30 or smaller figures appear in the viewfinder, there is @ danger of camera shake. In such a case, use a tripod or a flash. (For details, refer to page 38.) a) 2108SHOOTING IN APERTURE-PRIORITY AE MODE (TTT fo1i9 15 3 8 26 4 ror ttt y itl 1.1, bes 8 ube 8 16 24 7216 11 8 5.8 4 28 © Set the aperture to the f-stop you desire by turning the aperture ring, With the 50mm £/2.0 lens, you can set it anywhere between £/2.0 to 1/22 © Set the shutter dial to “A. @ As you depress the shutter button halfway, a shutter speed is displayed in the viewfinder. As you depress the shutter button completely, the shutter will be released.When the subject is too dark or too bright, “1000” or ‘"1"" in the viewfinder blinks as a warning. Stop down the lens (toward {/22) or open it (toward /2). When “1000” or "1" stops blinking, you are ready to shoot, When the subject is dark, use the Pentax dedicated flash. (For details, refer to page 28.) ad's aba "8 2216 11 8 5.6 4 — 8404! 8) 16 '22 11 8 5.8 4 282 230SHOOTING IN METERED MANUAL MODE fo 19 15 3 8 96 4 2218 gabe Bl 16'2 2216 11 8 56 4 2 ——- 024 Set the aperture to the f-stop you desire by turning the aperture ring. And choose the shutter speed from 1/1000 ~ 1 sec. by turning the shutter dial. If the aperture is set at the “A” position, release it from the position by turning the aperture ring while depressing the auto-lock-release button. Slightly press the shutter release button with the main switch on, and you will see “"M" and a shutter speed are displayed in the viewfinder. When 9 shutter speed and another blinking shutter speed appear simultaneously as shown at left, it indicates incorrect exposure. Change the shutter speed or the aperture until the blinking shutter speed disappears, so that corract exposure can be obtained.When setting shutter spood first Set the shutter dial to the desired shutter speed, Rotate the aperture ring until the shutter-speed display changes from a blinking speed to a just glowing speed, namely, only one shutter speed is seen, so that correct exposure can be obtained, If the display does not switch from a blinking speed to 2 glowing speed even by turning the ‘aperture ring, change the shutter speed by turning the shutter dial. Note: It is also possible to make intentionally over- or underexposure photographs as you wish. Fr 256When setting aperture first Set the aperture to your desired f-stop, Turn the shutter dial until the shutter-speed display changes from a blinking speed to a just, Tat, glowing speed, namely, until only one shutter speed is seen, so that 22 16 4V4 8 16 22 corect exposure can be obtained. If the display does not switch ASIA GT ES 7 aa} froma blinking spead to 2 glowing speed even by turning the shutter 2216 11 8 5.6 4 2.84 dial, change the aperture by turning the aperture ring. oe I bo 19 19 3 8 96 4 uM Ci Ci © Also in the case of Metered Manual mode, when the subject is too bright or dark, "1000" or "1" blinks as ¢ warning. Adjust the shutter speed or the aperture to obtain correct exposure. When a shutter speed slower than 1/30 is displayed, there is a danger °o of camera shake, and you are recommended to use a tripod or a flash. (For details, refer to page 38.)USING PENTAX DEDICATED AUTO FLASH UNITS Using the AF200Sa,, AF240Z, or AF160Sa flash nit with this camera easily allows the Programmed Auto Flash photography with the camera set to the Programmed AE made. You just turn the flash’s switch to ON, Furthermore, the AF200T, AF280T and AF400T can also be used with this camera in the Programmed Auto Flash mode. The table indicates what dedicated functions work when the camera is used with Pentax dedicated auto flash units. Caution: If the AF200T, AF280T or AF400T is Dedicated Functions (In Programmed Auto Flash mode) used with the camera in the TTL mode, the dedicated functions will be indicated in the viewfinder. But, the flash emits the full light output, resulting Flash-ready indication by the lighting lof mark. in incorrect exposure. © The AF200Sa,, AF240Z and AF1GOSa do not provide the dedicated function described in 3. [As soon as flash is ready, shutter speed is eutomatically set to 1/100 sec. for flash syne. © AFOBOC, AF200S, AF160S and earlier Pentax flashes apply to 1 and 2 only in the table, when the cemera is used in the Aperture-priority AE or Metered Manual mode. © When the Pentax dedicated auto flash is used in its M mode, the dedicated functions in the When flash has worked properly, 4 mark in viewfinder diseppears for an instant and lights up egein or kers, indicating that proper flash jsyne has been made. Programmed AE mode do not work. In Programmed AE mode, aperture is also set automatically. 27°USING PROGRAMMED AUTO FLASH MODE. Pentax dedicated flashes can be used with this cemera, regardless of whether it is set to the Programmed AE, Aperture-priority AE or Metered Manual mode. 1. Attach the flash to the camera. 2. Set the flash mode selector to AUTO (red, green or yellow]. This does not apply to ‘the AF200Sa,, AF240Z and AF160Sa.. 3. Turn the flash switch on, 4, When the flash is ready, it is indicated by the glowing of $ mark in the viewfinder. (When ‘the meter’s timer switch Using in Programmed AE mode © AF200Sa, AF240Z, AF160Sa, AF280T and AFA0OT are compatible with this mode. * Assoon as the flash is ready, the camera is, automatically switched to work at the flash syne speed of 1/100. The aperture is also automatically set to the programmed f-stop as shown in the table, depending on which AUTO position you choose, is off, the § mark also disappears.) 028 [At ISO 100) AF200T | AF280T | AF400T Red 1/28 44a £/4 | Green 1/56 /8 7 Yellow ane — 7/11 (AF200SA/AF240Z/AF 160SA: £/4 at ISO 100) ™ As the film speed changes, the aperture also changes automatically. = As shown in the above table, the aperture is set to f/2.8 when the AF200T is used in the Red AUTO, and therefore, using a lens whose maximum aperture is as small as £/4, for instance, will result in underexposure.Using in Aperture-priority AE or Metered Manual mode © Set the lens aperture to the f-stop indiceted by ‘the exposure table on the back of the flash. @ Assoon as the flash is ready, the camera is automatically switched to work at 1/100 sec. flash sync speed. (In Metered Manual mode, the slow-spaed sync described later is workable.) Auto Flash Check Mark ( + ) When a proper flash photo has been taken, the 5 mark in the viewfinder disappears for an instant just efter the flesh firing end lights up again or blinks, indicating the completion of a proper flash photography. This auto flash check mark only appears when the AF200T, AF280T and AF400T are in use Slow-Speed Sync Photography o As you set the shutter speed between 1/60 and 1 sec, with the u camera set in the Metered Manual mode, you can take slow-speed- sync photo, As soon as the flesh is ready,“ $”” and “M” marks plus the shutter speed set are displayed in the viewfinder. (1) Whon the shutter speed is set between 1/1000 and 1/125 sec., the camera is automatically switched to the flash syne speed of 1/100 sec., as soon as the flash is fully charged. (In this case, no shutter speed is displayed in the viewfinder.) 298EXPOSURE-MEMORY LOCK Memory lock not used The exposure-memory lock enables you to take an exposure reading in the Programmed AE or Aperture-priority AE mode, lock-in that reading, move your position, and then take the picture with the programmed reading. This is particularly useful in high-contrast conditions, such as when your subject is back-lit or has a dark background. 1. If you are taking a portrait, you can move i close to your subject and take a close-up reading of the face, To hold that reading, depress the memory-lock button; this will hold” the reading for about ten seconds, simultaneously making the shutter speed (LED) you are using flicker in the viewfinder at a faster speed. 2. As long as you keep depressing the shutter °30 button half-way while the memory lock is in use, ‘the memory lock will be maintained or, in other words, the exposure will remain the same. When you wish to interrupt the memory lock, just turn the main switch off. Recompose your picture and shoot; the subject will correctly be exposed. The memory lock will automatically be cancelled as soon as you release the shutter. Cautions When the Pentax dedicated auto flash is used on this camera, the memory lock does not work. If you accidentelly depress the memory-lock button with the camera in the Metered Manual mode, the shutter speed set will meaninglessly lock and flicker in the viewfinder.SELF-TIMER The self-timer is helpful for getting yourself into the photograph. It can be set by sliding the main switch forward until the "S.T."" is visible, while depressing the self-timer lever. As you cock the film wind lever and press the shutter release button, the shutter will be released about 12 saconds later. The self-timer lamp blinks to show the self-timer is working. About two seconds before shutter release, the lamp will start to blink at a faster rate. The self-timer can be cancelled even after it has started, by sliding the main switch back to the original positio @ When you shoot at the B (Bulb) setting, the self-timer cannot be used. Caution: When using the self-timer, you keep your eye away from the viewfinder, and light entering through the eyepiece can cause errors in exposure. This can be prevented by sliding an accessory viewfinder cap over the eyepiece, to shield the metering system from extraneous light.USING 100 $ SETTING When using a conventional clip-on-type flash on this camera, set the shutter dial to “100 $ ” (1/100 see.). Caution: If non-Pentax flashes whose dedicated functions are claimed to work also with cameras of other brands are used with this camera, they may well cause malfunction and damage to the electronic mechanism 032 As illustrated, align "100 $" with the red-line index. Set the aperture ring of your SMC Pentax-A/ -F lens to any f-stop other than A. © When using a conventional flash, select an appropriate f-stop according to the camera-to- subject distance or the program of the flash. (Refer to the instructions accompanying the flash.) © When using a syne-cord-type flash, use an optional accessory: Hot Shoe Adapter 2P. © This "100 "setting can be used for non-flash photography, but since the meter does not function at this setting, you can in no way make sure of correct exposure.USING B (BULB) SETTING The B setting is used for making long-time exposure When shooting at this setting, use a sturdy triood, to shoot fireworks, night scenes, etc. and as shown, also use the optional Cable Switch As shown in the photo, align ""B'” in the shutter A or Cable Release 50 (Time exposure possible). dial with the index (red bar). Make sure the © Be sure to use the Cable Release 50 without aperture of your lens is sat to a proper f-stop twisting or bending it; otherwise the B-setting other than A. The shutter remains open as long photography may not properly be done. Always as you keep the shutter button depressed. Push the head of the Release hard to release © The long-time exposure consumes a great amount _the shutter. The Cable Release 30 is not suitable of battery power; it will exhaust fresh batteries in for use. about ten hours at normal temperatures. 330DEPTH OF FIELD eo with 50mm £/2.0 15 10 e a 7 6 5 4 [] 2 1 0 iz Distanes (mm) 56 wt W2 Depth of field is the area of acceptable sharpness in front of and behind the point of focus. The depth of field becomes progressively greater as the lens opening becomes smaller. The distance at which the lens is focused also affects the depth of field: it increases as you get further away. The focal length of the lens is. another factor to determine the depth of field. The shorter the lens, the greater the depth of field. 034£/22 (1.67 ~ 16.9m) un) a ai - Ween) fir rary ee i Cae ry) is phe CL ce A zis did"! RE @ OPP | eedDEPTH-OF-FIELD PREVIEW Your camera enables you to preview just what will and what will not be sharp in your pictures. By depressing the preview lever near the lens mount, you can close the lens down to whatever aperture you have set. You can then preview how much sharpness you will get in your picture by examining the picture area on the ground glass. After previewing your picture, if you release the preview lever, the lens wil return to full aperture for focusing. You cannot, however, preview the depth of field with your camera set in the Programmed AE mod. Note: Taking pictures with the preview lever depressed will result in incorrectly exposed pictures. Depth-of-field Table: SMC Pentex-A 50mm Lens ‘unit=meter_ SS aE 3 “| a. BS oon = a a. 20m Sj - 20 =e. oo = ~ ee ; i °36INFRARED INDEX MARK If you intend to take infrared photographs using infrared film and R2 or 02 filters, it is necessary to compensate for the difference between visible light focus and infrared focus. As shown on the right, note the subject-to-camera distance on the lens distance scale as you focus through the viewfinder and turn the focusing ring until that distance setting aligns with the red infrared index mark. The figure shows an example in which the subject-to-camera distance is set at infinity ( ©), For details on exposure control, refer to the instructions accompanying the film. AT Ree Jr nie) AM 37eWARNING DISPLAYS Remarks ‘This display indicates the brightness of the subject is beyond the metering range in the Programmed AE mode, Releasing the shutter will result in incorrect exposure, Indicates the brightness of the subject is beyond the metering range, or that the combination of shutter speed and aperture is byond the coupling range, both in Aperture-priority AE mode, In the latter case, you can change the aperture to obtain correct exposure. In.the former case, the flickering does not disappear even if you change the aperture, Releasing the shutter with this display appeering will result in incorrect exposure. Indicates the brightness of the subject is out of the correct exposure range. Change the shutter speed or aperture, and when the flickering disappears and only one speed remains lit, you are ready to shoot. Indicates the brightness of the subject is beyond the metering range in the Metered Manual mode. The fli¢kering does not diseppear even if you change the shutter speed and aperture. Releasing the shutter will result in incorrect exposure, When the exposure-memory lock is used, these LEDs flicker at a fast speed, When batteries become exhausted, these LEDs flicker at a slow speed of once per second, °38‘©All these warnings are displayed by the flickering of LEDs in the viewfinder. © "Beyond the metering range” means the subject is too bright or too dark to be measured with the camera's built-in meter, "Beyond the coupling range” means the combination of shutter speed and aperture is beyond the limit of use even when the subject's brightness is within the metered range. ‘© For details on the metering/coupling ranges, refer to page 40. ‘@ The symbol .+417 in the table indicates flickering, When the warning indicates beyond-the-metering-range/beyond-the-coupling- range, the shutter speed flickers as fast as four times per second. When the brightness of the subject is beyond the metering range, take pictures in the following ways: ‘@ When the subject is too bright, use an ND filter locally available. ‘© When the subject is too dark, it is necessary to use @ flash or some other lightings. 390PROGRAMMED AE DIAGRAM, METERING RANGE AND SHUTTER/APERTURE COUPLING RANGE Out of shutter /aperture Aperture coupling range Out of metering range 6 2 2 a Tuiter/aperturp and 4 metering rang Progiammdd AE diagrhm, Cr ee) Out of shutter /aperture coupling range Out of metering range (with ISO 100, 50mm /1.4) °40The shutter-speed and aperture combination in the Programmed AE mode is shown in the chart. The red line represents the variation of shutter speed and aperture combination with an f/1.4 lens. Note that only the shutter-speed slows down after the lens aperture reaches its limit of 4/7.4 in combination with a speed of approx. 1/30 see. When you use a lens with ¢ different maximum aperture, the exposure program varies the aperture and the shutter-speed in combination until reaching the maximum aperture of your lens. For example, with an £/2.8 lens the program varies the combination as shown by the red dotted line, Note that only the shutter speed changes after the maximum aperture is reached. The fine red line in the Programmed AE diagram indicates the Automatic Exposure control range for a lens with minimum aperture smaller than /22, or for a film with ISO speed other than 100. Metering Renge and Shutter/Aperture Coupling Range The metering range means the range of subject luminance within which the built-in exposure- meter works to contro! exposure. The shutter/ aperture coupling range is thet part of the metering range within which shutter-speed and aperture value can be combined for proper exposure control. When you use e 50mm #/1.4 normal lens and an 1SO 100 film, the metering range is from EV 1 (F/1.4-1 sec.) to EV 18 (f/16 -1/1000 sec. or £/22-1/500 sec.}. The range varies according to film speed (ISO). The variation of the meter range is shown by slanting lines which shift ISO ratings. The frame in the center shows the meter and shutter/aperture control coupling range. EV (Exposure Value) EV represents @ combination of the shutter- speed and the lens aperture which is determined, by the film speed (ISO) and the brightness of the subject. ateDIOPTER CORRECTION, MOUNT ADAPTER K, EYECUP P spter correction lenses M which fit the eyepiece on your camera are available, If you find it difficult to see the viewfinder image clearly, choose eny one of the eight Correction Lenses M of -5, -4,-3, -2,-1, +1, +2, +3 diopters. Slide it into the eyepiece’s accessory groove. Before buying one, try it for yourself with the lens attached to your camera. Mount Adapter K If you want to use any conventional Takumar screw-mount lens ‘on your camera it is possible by placing an optional accessory called the Mount Adapter K between the camera body and the lens, However, please note the following conditions when actually taking pictures: © Automatic diaphragm does not work due to difference in the coupling system. © Stop-down metering must be made. © Automatic eperture setting with a Pentax dedicated flash is not workable. Eyecup P The Eyecup P is attached to the viewfinder accessory groove. When using such accessories as “‘Diopter Correction Lens M,’* “"Viewtinder Cap,’" etc., remove the Eyecup P from the camera.