Chip Louie <[EMAIL PROTECTED]> wrote/replied to:
>>IMO it's doubtful that the EOS metering system is sophisticated enough to >>successfully recognize and fully consider contrast in exposure. Maybe the >>Nikon meter could go it as they have so many data points available and even >>color data! I also don't think that there is enough resolution in the EOS >>metering system to effectively do this except in the most vague sort of way. >>Between the lack of speed and resolution the metering system is a weak way >>to accomplish this. BUT if this data were available I'd imagine the EOS >>metering system could be programmed to fully consider contrast range in the >>compromise that makes up exposure values based on the camera mode and >>settings (photographer's intent). Jim Davis wrote: > Well, Evaluative reads 35 zones, in a grid across the frame. Wouldn't > that be able to make a contrast guess? What I would like to see would be a very simple (thereby not overly expensive), low resolution (about 200 x 300 pixels) CCD or CMOS sensor fitted in the pentaprism. The color-information from this sensor could easily be used to supply data to the metering system. The advantages would be: - color-info available to the metering algorithm. - 60000-zone metering instead of 35-zone metering. - possiblitiy to use this sensor to display a histogram, even on film-based camera's. Bart :.________________ CONFIDENTIALITY : This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
