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Canon 5D Mark III
Canon 5D Mark III

5D Mark III vs 5D Mark II from ISO 50 to 25600 (Flowers)

Here are compared the Canon 5D Mark III to its 5D Mark II predecessor at ISO 50 through ISO 25600, whole ISO values.

The lens was the Leica 90mm f/2 APO Summicron-R at ƒ/5.6, easy to use for Canon users by simply adding a lens adapter.

Sharpening

For this comparison, I reduced my normal sharpening amount from 60 to 40 so as not to accentuate noise too much. As a practical matter, digital images must be sharpened and it makes a better evaluation to process images as similarly to real-world usage as possible, but perhaps not to the full amount of sharpening when very high ISO values are involved. Noise reduction was of course turned off.

Processing was at 5000°K with Tint=0.

Exposure was the same EV value for all, except that ISO 50 was 1/3 stop more exposure in the camera than ISO 100, along with +2/3 stop “push” during RAW conversion. The camera tricked me with its histogram at ISO 50! Both cameras used the same exposure and processing of course.

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diglloyd Advanced Photography

diglloyd Advanced Photography includes hundreds of pages of exclusive coverage and high resolution, Retina-grade example pictures detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare. Also included is a wealth of in-context technique and workflow insight. Since 2006, diglloyd Advanced Photography is the authoritative review and on-line reference for discerning Canon and Nikon shooters. Subscriptions cost $ per year.

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850
Comparing the relative resolution
Comparing the relative resolution

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