IS WHITE DOTS A HARDWARE PROBLEM? Locked

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James Bligh
Senior MemberPosts: 1,345
IS WHITE DOTS A HARDWARE PROBLEM?
1 month ago

I quote what I have said before.

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The white dots/thermal noise issue in D810 may be the result of pushing the sensor to the limit. We have heard D810 gets hot easily. I guess too many pixels causes thermal issues and it gets overheated especially when longer shutter speed is employed. In other word 36 MP in FF sensor may have gone over the top.

http://www.dpreview.com/forums/post/54232947

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Someone says as this; the most likely root cause is that there are electronic increased thermal emissions from parts inside the camera and that’s a “hardware” problem.

You may see my speculation agrees with his views.

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14) Astro

August 13, 2014 at 5:24 am

It is not just about inconvenience and having to wait. No serious astrophotographer is using the in-camera long exposure mode. The in-camera dark frame subtraction algorithm is very simple and the results are nowhere good compared to when you capture multiple dark frames, average and subtract them in a specialised software like most serious astrophotographers do it.

I am a bit sceptical about Nikon’s ability to solve this by firmware. Certainly they can invent some simple firmware trick to mask it for normal photography or simple night shots, however the most likely root cause is that there are electronic increased thermal emissions from parts inside the camera and thats a “hardware” problem.

Read more: http://photographylife.com/nikon-d810-thermal-noise-issue#ixzz3B2ahFq63

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Nikon D810
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