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Nikon Updates D850 Firmware to Fix the Long Exposure Noise Reduction (LENR) Bug

See my Nikon wish list and get Nikon D850 at B&H Photo.

Update Jan 16 8 PM: Nikon silently updated the updater. The folder on the updater disk image was named “Nikon D810”. Doesn’t inspire confidence. Presumably “D850_0101.bin” is unchanged.

Also, I successfully updated the D850 firmware and its lens correction data (separate download).


Back in October I wrote about serious damage to image quality on the Nikon D850 with Long Exposure Noise Reduction (LENR) enabled.

I am not aware that the major testing sites found this issue, or included it in their ratings (this is is a friendly poke at a few readers that have insisted on validity of “scientific” testing of sites like DxO which sometimes miss the forest for the trees).

Nikon has now published a firmware update that claims to fix the issue.

Changes from “C” Firmware Version 1.00 to 1.01

Fixed the following issues:

  • Users exiting Clean image sensor after adding it to and entering via MY MENU would be returned not to MY MENU but to the SETUP MENU.
  • Photos taken with On selected for Long exposure NR would sometimes have increased noise or shadows with a greenish cast.
  • Slight aperture reset lag would sometimes occur after shooting at shutter speeds under 1/10 s (type E and PC-E lenses excluded).

I am hesitant to link to the Nikon firmware updater page because the Nikon firmware updater page is insecureuse at your own risk. But here it is:

Nikon’s insecure firmware updater page

Below, how to check if long exposure noise reduction was on or off, using RawDigger.

Severe noise problems with Long Exposure Noise Reduction (LENR) before Nikon D850 firmware update

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