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03-30-2015, 12:33 PM   #16
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QuoteOriginally posted by jonby Quote
I'm sure that DPR did a test where they came to the conclusion that with a particular camera (think it was a Nikon D810), more or less the same shadow information was captured whether shooting at high ISO, or underexposing at low ISO and lifting everything in post.
Yes, that's also what I noticed with the K200, no difference. If you can find the link from DPR , could you please share, I'd really be interested. Thanks.

03-30-2015, 04:34 PM   #17
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QuoteOriginally posted by biz-engineer Quote
Yes, that's also what I noticed with the K200, no difference. If you can find the link from DPR , could you please share, I'd really be interested. Thanks.
Found it. It was the D750. It is page 14 of the DPR D750 review - Exposure Latitude: Nikon D750 Review: Digital Photography Review

The underexposed ISO100 shot isn't quite as good as the ISO6400 - there's less clarity in the shadows, a bit of blotchiness and the shadows are shifting towards red/magenta, but other than that it's pretty remarkable how similar they are. Check out how bad the 5DIII is by comparison!
04-02-2015, 04:56 PM   #18
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Separated some sites and their perception tests between 12 and 14
bit, yes there is a difference between them and 16-bit will probably expand this difference of underexposure or under normal conditions.

Combined with adobe 16-bit RGB printing ICC perfill will certainly have significant difference in image printing.

I would usufluir what is best for printing of Fine Arts,
is only one option, whoever print to a printer
common in JPEG Ok.

Some sites and their testing



Are 14-bit Raw Images Really Any Better Than 12-bit Raw? - Photo Tips @ Earthbound Light

12Bit Vs 14Bit Raw And Compressed Vs Uncompressed? Does It Matter? - DIY Photography

NX101 -- Capture NX - 12-bit vs 14-bit NEF
04-02-2015, 05:35 PM   #19
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QuoteOriginally posted by biz-engineer Quote
There's a line amplifier in front of the ADC, that's why if you use ISO6400 you get let noise than if you use ISO100 underexposed by 7 stops, and that's where it's better to have a 14 bits ADC rather than a 12 bits ADC. From 12 bits to 14 bits won"t help to get a better DR, but it will allow a cleaner higher ISO settings.



normhead, I see that you have a K5 and K3, and you are not interested in your extra bits, either when you upgrade a camera, you also have to upgrade your glasses, or you could do a good action by giving the bits you don't use to people who need them more :-))))
Well the problem biz -engineer is that I posted images taken with my K-01 and my K-5 at the same location, and people just can't tell the difference. It's scant but useful information. What have you got?

Maybe you should be telling everyone on the site to get glasses. I actually don't differentiate on bits, I shoot the K-01 when it's the best hardware for the job and the K-5 or K-3 when they are the best. As I said, I can't see a difference , you probably can't either. If you want to take the test, I'll post it for you. So, yes, I happily give up those two bits, on a regular basis.


Last edited by normhead; 04-02-2015 at 05:43 PM.
04-02-2015, 06:03 PM   #20
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here in the forum, comparing between k5IIs and k30

https://www.pentaxforums.com/forums/115-pentax-k-5/221729-k-5-iis-vs-k-30-how...sharper-2.html

One of the image difference of reasons can be the filter also.
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