Sony a7RII FW 2.0 raw dark-field histograms, ISO 100-1600

November 21, 2015 JimK 1 Comment

A few days ago I posted dark-field histograms from uncompressed files made with version 2 firmware running on the Sony a7II. Yesterday, I posted compressed and uncompressed read noise and engineering dynamic range plots for the a7RII running version 2 firmware.

Today’s post is of dark-field histograms from the a7RII, both compressed and uncompressed. The low-ISO ones are unsurprising. Nevertheless, I’ll post them here for the record.

ISO 100 uncompressed. All 14 bits present.

ISO 100 compressed. 13 bits present.

ISO 200 uncompressed. All 14 bits present.

ISO 200 uncompressed. 13 bits present. — ISO 200 compressed. 13 bits present.

ISO 400 uncompressed. All 14 bits present.

ISO 400 uncompressed. 13 bits present. — ISO 400 compressed. 13 bits present.

ISO 500 uncompressed. All 14 bits present.

ISO 500 uncompressed. 13 bits present. — ISO 500 compressed. 13 bits present.

ISO 640 uncompressed. All 14 bits present. Read noise is less than at ISO 500, thanks to Aptina conversion gain change.

ISO 640 uncompressed. 13 bits present. Read noise is less than at ISO 500, thanks to Aptina conversion gain change. — ISO 640 compressed. 13 bits present. Read noise is less than at ISO 500, thanks to Aptina conversion gain change.

ISO 800 uncompressed. All 14 bits present. Read noise is less than at ISO 500, thanks to Aptina conversion gain change.

ISO 1600 uncompressed. All 14 bits present.

ISO 1600 compressed. 13 bits present.

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Sony a7RII FW 2.0 raw dark-field histograms, ISO 1600 and up | The Last Word says:

November 21, 2015 at 9:20 am

[…] post is of dark-field histograms from the a7RII, both compressed and uncompressed. The low-ISO ones are unsurprising and were posted earlier. Now I’m posted the higher-ISO […]

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