Swades Das wrote: >I am proud owner of a Pentax K1000 and a KX with Pentax-A 1.4/50 and >Pentax-M 1.7 respectively. Simply overwhelmed with their performances. I >observed that for same lighting conditions, K1000 shows half to one stop
>underexposure compared to KX when the film speed and time are set same on >both of them. Is this natural or my one of the cameras is not properly >calibrated? There are two possible explanations I can see for this behavior: 1 - One of the meters is miscalibrated 2 - What you're seeing is the difference between a full-frame averaging meter (K1000) and a center-weighted meter (KX). I suppose it could be a combination of the two. I personally have trouble with the "center-the-needle" meters of the K1000 and KM because I often find it difficult to judge exactly where the "center" is to my own (slightly paranoid) satisfaction. At least not within half an f-stop (which is necessary because I shoot slide film). >I cold not find much differences on the film and prints. It >looks like k1000 photos are little more rich in color. With negative film one f-stop won't be a major difference and half an f-stop will be all but unnoticable. >KX has DOF and Mirror lock up. I am not able to judge when these two features >are used. Your help is appreciated. Use DOF preview when you want to stop down the aperture to see exactly how in focus or out of focus your background is. Particularly useful for macro and protrait photography. Mirror lock-up is useful for preventing mirror vibration from reducing image sharpness when shooting at shutter speeds between 1/15 and 1 second, particularly when shooting macro or with long telephoto lenses. -- Mark Roberts www.robertstech.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
