September 20, 2014, 12:26:58 AM

Author Topic: 5D3 same max dynamic range as the 5D2???  (Read 28315 times)

Astro

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Re: 5D3 same max dynamic range as the 5D2???
« Reply #135 on: March 24, 2012, 05:17:25 PM »
There are slight differences in banding vs. fixed pattern...I believe they are caused by different gains at different parts of the pipeline. The fixed pattern stuff is finer and cross-hatched, and pretty much always the same in every frame. Whatever causes banding is different, and the banding can change frame to frame. As far as I can tell, the fine, FIXED PATTERN noise is gone in the 5D III.

FPN is caused by physical non-uniformities at sensor level.
it can be easily removed because it does not change.

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Re: 5D3 same max dynamic range as the 5D2???
« Reply #135 on: March 24, 2012, 05:17:25 PM »

sndan

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Aglet

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Re: 5D3 same max dynamic range as the 5D2???
« Reply #137 on: March 24, 2012, 05:50:15 PM »
random banding is more likely caused by power supply instabilities or other system noise creeping into the sensor signal path.  comes down to proper electronics design and shielding.
I found noticeable random horizontal banding in some older bodies I tested, like the 40D, when pushing shadows.
Makes me wonder how well it'd perform if the internal power supplies and shielding were improved...


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Re: 5D3 same max dynamic range as the 5D2???
« Reply #137 on: March 24, 2012, 05:50:15 PM »