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Sony A7R II: Long Exposure Noise Reduction on/off at ISO 100 @ 30 sec + Chroma Noise Reduction (Egg-Shaped Boulder)

Sony A7R II

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This test assesses the impact of long exposure noise reduction (“LENR”) using a greatly underexposed 30 second exposure at ISO 100.

Sony A7R II: Long Exposure Noise Reduction On/Off at ISO 100, with Push, Chroma Noise Reduction (Egg-Shaped Boulder)

This analysis includes RawDigger histograms with long exposure noise reduction on/off, entire frame at sizes up to 24 megapixels, and three large crops. All with LENR on/off and with chroma noise reduction (4 combinations).

In my experience with every other camera, LENR has always been a clear plus. The results with the Sony A7R II muddy the waters on the LENR setting and cast fresh doubt on the judgment at Sony in foisting the the Sony 11+7 bit* lossy compression scheme on users of a $3200 camera.

Sony A7R II: Assessing long exposure noise reduction with underexposure at 30 secons
f2 @ 30.0 sec, ISO 100; 2015-08-12 20:44:35
Sony A7R II + Zeiss Batis 25mm f/2 Distagon

[low-res image for bot]

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