EXCERPT page containing first few paragraphs. 2017-01-23 21:02:14
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This ISO series from ISO 320 to ISO 25600 is available at full sensor resolution.
Adobe Camera Raw 9.0 (414). ACR settings. Camera Profile = Embedded.
Your author’s typical sharpening was used as with the M240; this can accentuate noise a bit, but sharpening is a necessity and hence this is a realistic real-world assessment.
Exposure was as perfect as can be, pushing the highlights right out to the right side of the histogram. Thus the noise behavior is as good as it gets and would only be less good were the exposure less than optimal.
Noise is fine-grained and tight at all ISO values, but some chunkiness and streaking develop at ISO 25,600. The entire-frame images are compressed at high quality, but see the crop also, which was compressed at maximum quality JPEG.
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Since 2009, Diglloyd Guide to Leica is the authoritative review and reference for Leica M lenses: Leica M, Zeiss ZM, Voigtlander, as well as Leica M digital bodies. Leica S is also included.
It includes hundreds of pages of exclusive coverage and high resolution Retina-grade examples covering Leica M-System lenses and digital bodies with in-depth performance comparisons and analysis.