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ZOOM LENSES ON MOUNT ADAPTERS


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#1 Mike Medavoy

Mike Medavoy
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Posted 22 March 2007 - 11:59 PM

Hi,

Do you run more risks mounting a 35mm ZOOM lens to a 35mm camera by way of a mount adapter (as supposed to a prime for example)?

I am not talking about weight and support, obviously the zoom lens will be properly supported etc etc

I am talking about zoom drift, lens displacement and so on. A prime is smaller and doesn't have moving elements, and generally doesn't take as much strain as a zoom lens, therefore mounting it with a mount adapter is safer I assume. But what about a zoom lens? People do this if they have no choice?

Thanks!
Mike

PS Specifically, the zoom is in Bayonet mount and I will mount it on a BNCR camera by way of a Bayonet-to-BNCR adapter. The adapter is reasonably sturdy and in good condition. The lens is the Angenieux 12-240 converted to 25-500mm for 35mm format.
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#2 Jon Kukla

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Posted 23 March 2007 - 12:19 AM

I would think that a zoom would be better in that I could at least use it to quickly check for any change in backfocus. But in essence, assuming that everything is securely locked in and the lens is supported properly, I don't see any reason why there should be problems.
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