Pentax K100D Service Manual page 74

26. 【CONF】Final function check 3
＊ Excute [Function check 2] if necessary.
26-1. Confirmation of the metering function
＊ The checking method is the same as *istD series.
【Required equipment】 Light source (Shutter tester), FA50mm F1.4
① Attach the lens (FA50mm) to the camera and set the aperture to the A position.
② Set the camera as follows.
Capture mode : AV (Aperture-priority) mode, aperture value : Av8 (FNo.8), Sensitivity : ISO200,
Focus mode SW : Manual focus, Exposure setting step : 1/2 (Default setting of custom function)
③ Set the focusing ring to the infinity (∞).
④ Set the camera to the light source (shutter tester).
⑤ Change the light value of light source and confirm that the TV value is displayed as follows while
depressing the release button halfway.
（ FNo.8・ISO200 ）
＼ LV6
Tv display Tv0.5"
26-2. Confirmation of the Exposure value (for reference)
【Required equipment】 Computer (for Digital adjustment), AC adaptor, USB cable (I-USB17), SD Card
(for taking picture), FA50mm F1.4, Light source (LB-3300 : color temperature must be calibrated
2850K°±10), Image viewing software (Adobe Photo shop)
① Attach the lens (FA50mm) to the camera and set the aperture to the A position.
② Set the camera as follows.
Image : Natural, Capture mode : Program mode, Metering Method : Multi-Segment metering,
Focus mode SW : Manual focus, White Balance : Tungsten Light, Color Saturation : Normal, Image
Sharpness : Normal, Contrast : Nomal, Recorded pixels : 6M (Default setting), Quality level : Best (Default
setting)
③ Set the focusing ring to the infinity (∞).
④ Set the camera to the light source.
⑤ Take a picture while changing the light
value of light source.
⑥ Open the recorded image by using the
Image viewing software (Adobe Photo shop)
⑦ Select the histogram as shown in the figure below.
(In the case of Adobe Photoshop EL⇒)
⑧ Confirm that the level of brightness must not vary
remarkably from the standerd (Y=110).
【Caution】A standard applies only the bottom of
above-mentioned setting condition.
LV8 LV9 LV10
Tv8 Tv15 Tv30
76700 -73/94-
LV12 LV15 LV15（Multi-segment）
Tv125 Tv1000 Tv750
Image
Histogram
Brightness level
Y