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hi_vis360
November, 2024

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Anyone use cctv lenses on m4/3?

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Mag
Posts: 8155 - Karma: 14,809
Just curious if anyone uses c mount lenses for micro 4/3 cams? gh2 etc. Seems like a ridiculously cheap way to get wide lenses, and they're all really fast(like 20$ for an f/1.0 wide angle). I've heard about problems with some of them damaging(presumably the sensor? being too far back?) but I'm just curious if some people use them.
Apr 25 2013 4:06PM
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eheath
Posts: 61647 - Karma: 123,460
I believe you have to use the crop function so that cmount lenses don't vignette, rendering the wide lenses pretty useless.
Apr 25 2013 4:12PM
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Mag
Posts: 8155 - Karma: 14,809
not when they go to like 4-6mm, which is about equiv to an 11-16.
Apr 25 2013 4:21PM
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eheath
Posts: 61647 - Karma: 123,460
Just not sure if those super wide lenses work, who knows. the optics of the 11-16 are far superior anyways...
Apr 25 2013 4:35PM
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Mag
Posts: 8155 - Karma: 14,809
Yeah fair enough, but they're huge amounts faster+they're so cheap it's unbelievable, I'll try have a look into it.
Apr 25 2013 4:36PM
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plorr
Posts: 3131 - Karma: 528
meh not really worth it imo. You can get old fd or nikon or pentax primes that are better for about the same price. And having to use the crop mode is a huge bummer. Quality in crop mode is definitely not as good.
Apr 25 2013 11:26PM
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Mag
Posts: 8155 - Karma: 14,809
Really? Didn't know the quality changed.
Apr 26 2013 3:49AM
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plorr
Posts: 3131 - Karma: 528
In my experience the detail resolved seems to be slightly worse and ISO noise is much more pronounced. Also the image on the monitor is very low res until you hit record which makes it hard to get critical focus.
Apr 26 2013 11:40AM
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Mag
Posts: 8155 - Karma: 14,809
Why is this? and can't you use the evf for video?
Apr 26 2013 12:06PM
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VT_scratch
Posts: 8796 - Karma: 6,290
even this looks dope

30$ lenses on GH1, hacked or not, that is the question... from Seb Farges on Vimeo.

Apr 27 2013 3:50PM
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plorr
Posts: 3131 - Karma: 528
I don't know why this happens, it is just a flaw in the way the feature is implemented. The evf is equally as low-res prior to recording in ETC mode though.
Apr 28 2013 9:41PM
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