D7200 HPS (hot pixel suppression) news

Started Dec 8, 2015 | Discussions thread
ForumParentFirstPrevious
Flat view
Bernard Delley Senior Member • Posts: 2,107
D7200 HPS (hot pixel suppression) news
5

The D7200 appears to boast a new HPS method. Like as some previous models it kicks in at exposures longer than 1/5 s, and cannot be user controlled. It appears to allow for more peaky star images and it is quite effective at removing hot pixels.

This is a follow up on earlier HPS analysis by Marianne Oelund: In-camera processing of long-exposure RAW data and myself: hot-pixel suppression in D800 and D4  and after introduction of a nonzero black level in Nikon DSLR there was an issue with HPS The Story of One Hot D810 Pixel...   The present status for D810 is unknown to me, as I currently have no access to a sample of this camera.

The following graph shows cumulative statistics over all 24 M raw pixels of a black frame at ISO 1600 at 1/5s. There were very few hot pixels. Some come with brightness even way more than raw number 1000.

At 1/5s the HPS is active and removes the hot pixels. The cumulative noise statistics is the best I have seen so far at ISO1600 on any camera.

 Bernard Delley's gear list:Bernard Delley's gear list
Olympus TG-6 Nikon D7200 Nikon D500 Nikon D850 Nikon Z7 II +17 more
Nikon D4 Nikon D7200 Nikon D800 Nikon D810
If you believe there are incorrect tags, please send us this post using our feedback form.
ForumParentFirstPrevious
Flat view
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow