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General photography questions and answers: Discuss 2x converter...Hi can anyone point out a good site or make comments about the 2x converter? I understand it doubles the ...
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Old 04-04-2007, 11:53   #1 (permalink)
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2x converter

Hi can anyone point out a good site or make comments about the 2x converter?
I understand it doubles the zoom length . that's the plus side. is there a down side?
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Old 04-04-2007, 11:54   #2 (permalink)
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Re: 2x converter

The downside is a loss of two stops of light getting to your sensor!
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Old 04-04-2007, 12:24   #3 (permalink)
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Re: 2x converter

This may be useful :- http://www.pixalo.com/community/came...ity-10437.html

If you do a search on convertor you should get lots to read on this site
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Old 04-04-2007, 14:30   #4 (permalink)
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Re: 2x converter

On certain models you also lose auto focus.
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Old 04-04-2007, 17:13   #5 (permalink)
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Re: 2x converter

I have 1.4,,,2,,,and a 3x converter. I have them to shoot at the moon, have used them for long distance landscape. The 1.4 does really well, the 2x real well, the 3x kinda well. I have stacked them, kissed them and talked to them. I end up with detail noise with poor focus with the 3x and slight to very low noise and less problem with focus on the 2x. No noticable problem with the 1.4. I lose autofocus with them all. I use a 20D and should have autofocus with the 1.4,,,this info for 100-400 zoom. When used on a prime lens they all seem to work alot better with very little problem if any. My primes are fast and I don't lose autofocus. The converters do get you closer to the moon.
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Old 05-04-2007, 11:56   #6 (permalink)
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Re: 2x converter

Thanks for the input, everyone. Much appreciated
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Old 05-04-2007, 15:06   #7 (permalink)
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Re: 2x converter

Quote:
Originally Posted by Boofers View Post
I have 1.4,,,2,,,and a 3x converter. I have them to shoot at the moon, have used them for long distance landscape. The 1.4 does really well, the 2x real well, the 3x kinda well. I have stacked them, kissed them and talked to them. I end up with detail noise with poor focus with the 3x and slight to very low noise and less problem with focus on the 2x. No noticable problem with the 1.4. I lose autofocus with them all. I use a 20D and should have autofocus with the 1.4,,,this info for 100-400 zoom. When used on a prime lens they all seem to work alot better with very little problem if any. My primes are fast and I don't lose autofocus. The converters do get you closer to the moon.
Now that explains the avatar
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