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More re Crops

Started 4 months ago | Discussions thread
Kobie M-C
Kobie M-C Contributing Member • Posts: 701
Re: More re Crops

ozdean wrote:

More tests - Very interesting.

I have come to the conclusion that when the crop modes are activated all other pixels (Photo sites) outside the crop are turned Off ie they don't register on the sensor, here's why;

If you look at 1.7 the exposure is duller but more accurate to a 18% grey card and White Balance is correct.

In the 1.3 crop the exposure is lighter and WB is starting to tend toward Magenta both trying to compensate for the darker blue background of the desk.

With no crop their is much more blue desk in the Original Photo (before equalizing the crop) and we see the lightest exposure and most magenta.

I have to also expect that crop modes will decrease writes speeds and hence increase buffers in Hi Speed Shutters - more testing to come.

CONCLUSION; It is definitely worth cropping in Camera rather than Post - You are eliminating a lot of unwanted Light.

Original Shots

Interesting. About the buffer, no, it makes no difference. Full image, or either crop will fire off the same burst amount. They don't seem to process any faster either.

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