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Review: Sony A7R teams up with Canon glass
  
 
eric hagemann
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p.5 #1 · Review: Sony A7R teams up with Canon glass


Fred,
My Bad - here is the link

http://scottreither.com/blogwp/2012/07/01/nikon-d800-e-long-exposure-issues-problems-2/




Feb 01, 2014 at 08:34 PM
David Baldwin
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p.5 #2 · Review: Sony A7R teams up with Canon glass


Eric, thanks for that link. As a specialist night photographer reading what Scott wrote made me very grateful I'm still using my 5D2.


Feb 02, 2014 at 08:58 AM
krickett
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p.5 #3 · Review: Sony A7R teams up with Canon glass


FWIW, I take long exposures 30s+ all the time (D800... not E), and I've never encountered this issue.

I just set up and took a quick 60s shot of my bedroom door (haha) and wasn't able to see any problems.

EDIT: I guess i should have read it more thoroughly. His problem was that he didn't shut the viewfinder shutter (that was what I actually suspected initially, haha), and he figured that part out.

I'll test for the white spots later. For little white noise, I don't think the problem is unique to Nikon. Most DSLR's have long exposure noise reduction for this purpose, and you just have to decide whether or not you want to deal with it. The bright hot spots are a concern though, and I'll look for those.



Feb 03, 2014 at 12:59 AM
hwoarang5
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p.5 #4 · Review: Sony A7R teams up with Canon glass


anyone tested magic lantern dual_iso module mode with markIII?, i like to see a shoot out with that on this sony and d800 on DR and noise ...

http://www.canonrumors.com/2014/01/magic-lantern-increases-canon-5d-iii-dynamic-range/



Feb 04, 2014 at 05:06 AM
 

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alundeb
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p.5 #5 · Review: Sony A7R teams up with Canon glass


eric hagemann wrote:
Fred,
My Bad - here is the link

http://scottreither.com/blogwp/2012/07/01/nikon-d800-e-long-exposure-issues-problems-2/



Thanks for the link.

It is hard to take his "issues" seriously.

First, he didn't know that he had to close the viewfinder when using ND filters. Light leak through the VF is a problem also with Canon cameras.

Finally, he refuses to use in-camera NR of long exposures. Good luck finding a camera that does not show hot pixles with long exposures without black frame subtraction.



Feb 04, 2014 at 07:35 AM
Fred Miranda
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p.5 #6 · Review: Sony A7R teams up with Canon glass


alundeb wrote:
Thanks for the link.

It is hard to take his "issues" seriously.

First, he didn't know that he had to close the viewfinder when using ND filters. Light leak through the VF is a problem also with Canon cameras.

Finally, he refuses to use in-camera NR of long exposures. Good luck finding a camera that does not show hot pixles with long exposures without black frame subtraction.


I have been testing the A7R with the Astrotrac. I will update the review with my findings.
Fred



Mar 10, 2014 at 09:01 PM
wmqiadm1
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p.5 #7 · Review: Sony A7R teams up with Canon glass


gr8



Apr 04, 2014 at 10:25 PM
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