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2nd January 2005
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#1 |
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Member
Join Date: Nov 2003
Location: tanglin
Posts: 595
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unitube 12 & 25mm
Hi, has anyone try to attach unitube 12 or 25mm to your 50mm F1.8 or 18-70mm len? can it bring the subject closer on AF mode? cheers
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2nd January 2005
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#2 | |
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New Member
Join Date: Apr 2004
Location: West
Posts: 46
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AF does not work on AFS lens.  use MF instead. |
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2nd January 2005
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#3 | |
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Member
Join Date: Feb 2004
Location: Tampines
Posts: 1,090
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I have the kenko extension tube set (3 tubes, 12mm, 20mm, 36mm) and it DOES AF correctly (some hunting) on my 18-70 AFS kit lens. These tubes also AF on my other AF (non-AFS) lens.
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2nd January 2005
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#4 | |
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New Member
Join Date: Apr 2004
Location: West
Posts: 46
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i think with exception to ur kenko tubes  |
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2nd January 2005
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#5 |
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Deregistered
Join Date: Jan 2003
Location: Asylum, Ward 4444
Posts: 2,132
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sorry to sidetrack.
How does the Unitube 12mm, 20mm, 36mm differs? Longer gives u a larger magnifcation? Any loss of F-stop? Thanks |
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2nd January 2005
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#6 | |
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Member
Join Date: Feb 2004
Location: Tampines
Posts: 1,090
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I believe the 12 & 25 tubes are sold individually, wheras the 12,20,36 are sold together as a 3 piece set.
Longer tubes give larger magnification with some light loss, details on mag can be found at : http://xoomer.virgilio.it/ripolini/Close_up.htm http://wwwca.kodak.com/CA/en/consume...cat=8&subCat=3
Last edited by eawtan; 2nd January 2005 at 05:08 PM. Reason: fixed typo |
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2nd January 2005
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#7 | |
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Deregistered
Join Date: Jan 2003
Location: Asylum, Ward 4444
Posts: 2,132
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2nd January 2005
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#8 |
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Member
Join Date: Nov 2003
Location: tanglin
Posts: 595
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Thank for all the info!
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2nd January 2005
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#9 |
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Member
Join Date: Feb 2004
Location: Tampines
Posts: 1,090
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Past discussion on ext tubes : http://clubsnap.org/forums/showthrea...&highlight=180
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