The BS of Digital Photography

Ken Waller kwaller at peoplepc.com
Tue Oct 6 23:44:51 EDT 2009


Kenneth Waller
http://www.tinyurl.com/272u2f

----- Original Message ----- 
From: "paul stenquist" <pnstenquist at comcast.net>

Subject: Re: The BS of Digital Photography


>
> On Oct 6, 2009, at 4:42 PM, Ken Waller wrote:
>
>>
>> Kenneth Waller
>> http://www.tinyurl.com/272u2f
>>
>> ----- Original Message ----- From: "paul stenquist" 
>> <pnstenquist at comcast.net
>> >
>> Subject: Re: The BS of Digital Photography
>>
>>
>>> On Oct 6, 2009, at 3:07 AM, Tom C wrote:
>>>> I just ordered a K-7 against what may may be my better judgement...
>>>> I'm optimistic that it will meet my present needs, though I'm pretty
>>>> sure it's far too noisy for any astrophotography.
>>
>> snip
>>
>>>> I'm unsure what processing has occurred in camera.
>>>> I'm unsure how the sensor has responded to the scene and how the
>>>> software in the camera has adjusted the image. I can guess, but I'm
>>>> not sure.
>>> When you shoot RAW, no processing has occurred in the camera.  However, 
>>> the jpeg viewed on the LCD screen has been processed. You  can adjust 
>>> how much or how little by tweaking yur jpeg settings.
>>
>> But isn't the histogram on the LCD based on a jpeg from the RAW  capture?
>> This tweaking could be misleading when on a RAW capture.
>>
> Yes, but dialing down contrast and saturation on your jpeg settings  makes 
> the jpeg histogram approximate the RAW. It's definitely close  enough to 
> keep one in the ballpark.
> Paul

Dialing up contrast & saturation on the jpeg settings could lead to false 
histograms as far as the RAW capture is concerned, even tho the jpeg (on the 
LCD) might look ok.





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