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Wade
註冊: 2004-09-16
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 Sigma len problem? Post time: 11 月 8 日 |
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I want to know that Sigma 70-300 APO marco supper len can add any externsion tube (e.g X1.2, etc)?
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samho
註冊: 2002-06-28
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| Re: Sigma len problem? Post time: 11 月 8 日 |
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yes, shouldbe OK
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krell99
註冊: 2004-01-08
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| Re: Sigma len problem? Post time: 11 月 8 日 |
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It is no problem indeed !
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darrens
註冊: 2003-09-23
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| Re: Sigma len problem? Post time: 11 月 8 日 |
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extender 1.4X, 2X....
extension tube 12mm,25mm.......
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Wade
註冊: 2004-09-16
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| Re: Sigma len problem? Post time: 11 月 8 日 |
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thx~
I want to buy extension tube for sigma 70-300mm APO macro supper. Any things I should take care (mount, etc)? Someone tell me sigma externsion tube can't used on this len. Any sugesstion (canon, sigma, etc)??
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wtfgary
註冊: 2003-03-07
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| Re: Sigma len problem? Post time: 11 月 8 日 |
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I haven't tried it myself.
However, as far as I know, aperature will dropped one stop down when the tube is added. For the mentioned SIgma lens, aperature will be quite small + long focal range ... hand shake + object movement may become important.
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