Thanks, Mike. You'd think a middle to high end DSLR would have stuff
like that already built in.
Chuck Norcutt
On 9/7/2011 4:08 PM, usher99@xxxxxxx wrote:
> CC writes:
> I just don't think the histograms on
>> 35mm format digital SLRs are large enough to see accurately if you're
> losing
>> anything to overexposure.
>
> Moose replies:
> Correct, but not limited to cameras. Take an image like the Rose of
> Sharon one
> from Jim that I just posted about. Look
> at the histogram in PS, then Select Highlights and look at the
> histogram. Oops!
>
>
> Well hackers to the rescue for some circumstances. CHDK will enable a
> demarcation at end of histo (I often like the blend/ (RGB in one
> histo) Y option
> when ANY over or under exposure is detected. There is Zebra mode ( I
> have set for 1/2 press) for over AND underexposure with user set
> thresholds (optimally determined for each cam/PP flow)
> An RGB Zebra mode with the clipped channel area flashing (in the
> clipped color of course) is also available, but that negates the
> underexposure Zebra at least for my build. So one can know not only if
> clipped or shadow blocked , but WHERE
> prior or after exposure. Moose would make this software sing on the
> G11 but is a bit fussy to set up the first time on a large card---2
> partitions necessary. After one card configured one can just copy the
> cfg file to the next card as to avoid
> fussing with the menus again.
>
> http://chdk.wikia.com/wiki/CHDK_User_Manual
>
>
> Hacked Firmware Fan, Mike
>
>
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