----- Original Message ----- From: "Davis, Lee" <[EMAIL PROTECTED]>
Subject: Exposing to the Right/Best ISO Setting? > > One of the benefits of cameras like the Sony R1 with its EVF was that > you could learn to see the correct exposure as it changed in the > viewfinder. Not so with a K20D Pentax! In a way, I am glad, as it is > making me learn to 'see properly' again ... I hope. The problem with EVF viewfinders is that they pretty mcuh hoover. I'll take a real viewfinder any day. Note to Pentax: If you put an EVF into an SLR camera, I won't be your loyal customer any longer. > > One question though: exposing to the right will invariably mean slower > shutter speeds. Good that the K20D has shake reduction then but it > occurs to me to ask what is the best ISO setting for minimum noise? ISO 100 is the native sensitivity of the sensor, though I haven't been able to detect any apreciable difference between 100 and up to 640 in print with the K20. > > I gather that digital SLR sensors have a 'base' setting, i.e. its true > sensitivity. Does anyone know what it is for the K20D? Answers to the > same question on dpreview are not conclusive and vary equally between > 100 and 200. > > So, in an ideal world, where I am placing my camera on a tripod for that > glorious landscape shot, what is the best ISO setting for image quality > - 100 or 200? As far as the in camera histogram is concerned, I use it for reference and keep on going. IF it indicates clipping, I adjust the exposure. I've never had a problem with this method of exposure confirmation. I suspect that the extra exposure range of the RAW file is responsible for this. I don't really care, I take pictures rather than worry about the babbling technowhinging on DPReview. William Robb -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
