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500mm cinematography


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#1 Bradley Stearn

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Posted 24 July 2012 - 02:58 PM



I was given an Ensinor 500mm f/8 mirror lens, I bought a M42 to EOS adaptor so I could use it with my Canon EOS camera.
I was struggling to focus, not sure if its because it isn't the sharpest lens, or if I was just bad at focusing. I'm assuming it is just because it isn't the sharpest lens though.
It's amazing how close I get to things with this lens, with my normal lenses I would have just walked away from the opurtunity of filming these dragonflies.
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#2 Tom Jensen

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Posted 24 July 2012 - 03:53 PM

Mirror lenses are not the sharpest and are not used a lot. At an 8 you are wide open and that is not the best place to be shooting. How far can you stop down?
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#3 Mark Dunn

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Posted 25 July 2012 - 06:44 AM

Mirror lenses are fixed aperture. There's no stop to down.
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#4 Tom Jensen

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Posted 25 July 2012 - 08:15 AM

Mirror lenses are fixed aperture. There's no stop to down.


I now seem to remember that. We had one at Otto Nemenz in the 80's. Didn't get a lot of use.
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#5 Mathew Rudenberg

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Posted 25 July 2012 - 12:21 PM

The bokeh at 0:40 - 0:47 is quite nice, a result of the mirror I would assume?
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