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2/3" to 1/2" lens conversion

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jaru22
2/3" to 1/2" lens conversion
on Apr 29, 2005 at 1:50:57 am

Hey there,
Can anyone assist me with how the math converts going from 2/3" to 1/2" lenses and vis versa? I know they change the viewing angle but do not know how much or what the calculation would be.
What I am thinking is this....I own a DSR-390 which is a 1/2" mount and want to get a wide angle lens on it. But, I am thinking if I get a 2/3" lens and use the adaptor to fit it to my 1/2" mount that would be a better investment and there are more 2/3" options than 1/2" options. So...say I was to get a Canon 2/3" J14a x 8.5b, how would that translate on my camera? 5.5? 4.5? or?
Thanks in advance!


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David Jones
Re: 2/3" to 1/2" lens conversion
on Apr 30, 2005 at 6:46:15 pm

You might consider something along the lines of a wide angle lens attachment made by OpTex.


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Peter DeCrescenzo
Re: 2/3" to 1/2" lens conversion
on May 2, 2005 at 3:32:52 pm

In addition to OpTex, you may also wish to refer to Century & CollinsCraft/Red Eye:
http://www.centuryoptics.com/
http://www.collinscraft.com/

All the best,

- Peter

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jaru22
Re: 2/3" to 1/2" lens conversion
on May 2, 2005 at 5:06:10 pm

Thanks for the replies, but my questions is not where I can find wide adaptors but more how does the mathmatical conversion work out between chip sizes?


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Mike Gluckman
Re: 2/3" to 1/2" lens conversion
on May 7, 2005 at 1:09:08 am

Try this conversion table http://www.panavision.co.nz/main/kbase/reference/tblelenseqvform.asp


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