QE level of 5D3 and D800

Started Apr 22, 2012 | Discussions thread
Shop cameras & lenses ▾
ForumParentFirstPrevious
Flat view
Astrophotographer 10 Senior Member • Posts: 6,769
QE level of 5D3 and D800

Here is a site that measures the QE of DSLR sensors (QE is quantum efficiency or the efficiency the sensor detects light with ie 100% would be perfect, 20% would be abyssmal).

D800 is 57% and 5D3 is 49%. But 5D2 was only 33%. That's a huge gain for 5D3 and not being pushed in their marketing.

To get those figures in perspective my $14,000 astrophotography camera is a mono CCD, that is cooled to -35C and has a QE of 60%.

57% uncooled, with a Mayer matrix is unbelievably high. Normal DSLR sensors have been in the high 20 to low 30%'s.

http://books.google.com.au/books?id=s6rE3Z6PK44C&pg=PA321&lpg=PA321&dq=geometric+quantum+efficiency&source=bl&ots=-FOmCDmYms&sig=ssxko11hjQEw5EfF5GvRDUAYdD8&hl=en&sa=X&ei=9paTT5-xCcmYiAfqjZ2_Dw&ved=0CEUQ6AEwAg#v=onepage&q=geometric%20quantum%20efficiency&f=false

Greg.

 Astrophotographer 10's gear list:Astrophotographer 10's gear list
Sony Alpha 7R II Sony FE 55mm F1.8 Zeiss Batis 25mm F2 Zeiss Batis 85mm F1.8 Zeiss Loxia 21mm F2.8 +4 more
Canon EOS 5D Mark II Canon EOS 5D Mark III Nikon D800
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