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10-05-2011, 08:29 PM   #1
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Viewfinder/focus screen for low light long lens

I'm finding in low light using my slowish 300mm zoom the focus screen is dark, making it difficult to focus. What solution is available? I installed the Pentax O-ME53 magnifying viewfinder which helps quite a bit.

Any suggestions?

10-05-2011, 10:05 PM   #2
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There is a thread...

QuoteOriginally posted by derekkite Quote
I'm finding in low light using my slowish 300mm zoom the focus screen is dark, making it difficult to focus. What solution is available? I installed the Pentax O-ME53 magnifying viewfinder which helps quite a bit.

Any suggestions?
There is a thread about a Canon focusing screen modification that some people swear by. It was up fairly recently so it might be worth a search. I just use the 0-ME53 and the stock screen.
10-05-2011, 10:08 PM   #3
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I read that thread. It seems that it helps with large aperture lenses. I was reading somewhere else that it is dark with slower and long lenses.
10-05-2011, 10:52 PM   #4
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I don't think changing your focus screen is going to improve that scenario much (though a split-prism will be a tad darker it may make focusing easier) and you already have the Pentax O-ME53. Short of changing to a FF camera I haven't heard of any other solution - this didn't help at all did it.

10-05-2011, 11:24 PM   #5
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Katzeye with Optibright

QuoteOriginally posted by derekkite Quote
I read that thread. It seems that it helps with large aperture lenses. I was reading somewhere else that it is dark with slower and long lenses.
I am the totally wrong person to help you with this, but have you looked into a Katzeye with Optibright?
10-06-2011, 01:58 AM   #6
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You may want to consider using a Hood_Lupe with LV. The magnification in LV will help for the long distance.
10-06-2011, 02:27 AM   #7
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From my tests, the Canon EE-S screen was actually brighter for apertures smaller than f/4...
So I'd say that it would improve perceived brightness with slow lenses...
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