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9th of April 2008 (Wed)
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#1 |
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Member
Join Date: Sep 2007
Location: Austin, TX
Posts: 272
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Macro Lens Question
In my ongoing debate on which macro lens to buy, the following question:
I know that the Canon 100mm does not extend (which seems to my feeble mind to be an advantage). Do the Tamron 90mm and the Sigma 105mm both extend then? The advantage to non-extending is  ?
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Fr. Jeff+ 50D; Sigma 10-20 f/4-5.6; EF-S 18-55 IS; 50,f/1.8 II; Canon 60mm f/2.8 Macro; Tamron 28-75 f/2.8; Canon 70-200 f/4L; Canon 430EX II, Kenco Extensions -Flickr |
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9th of April 2008 (Wed)
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#2 | |
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Re: Macro Lens Question
Quote:
So to answer your question, yes and yes. The first link tells you by how much. The advantage is in handling (macro lenses with OLE get a lot longer) and less likely to scare bugs. You can manage however ie the MP-E 65mm which extends by a factor of 3.
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My Photography Home Page RSS Feed MP-E, EF 100mm, EF 180mm : The Macro Dark Unholy Trinity : Bow down before their darkness and despair! Gear List FAQ on UV and Clear Protective Filters Macrophotography by LordV |
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9th of April 2008 (Wed)
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#3 |
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Cream of the Crop
Join Date: Mar 2005
Location: Portage, Wisconsin USA
Posts: 12,643
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Re: Macro Lens Question
If your lens is IF (internal focus) and does not change in length as you focus, then the f/stops are true at any distance. Many macros do extend and the marked aperture is wrong at close distances. Comes into play if you ever were going to shoot in full manual, perhaps. My Sigma 150/2.8 Macro lens comes with hood and collar, front does not rotate, lens does not change in length - the way all lenses should be.
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9th of April 2008 (Wed)
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#4 | |
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Moderator
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Re: Macro Lens Question
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My Photography Home Page RSS Feed MP-E, EF 100mm, EF 180mm : The Macro Dark Unholy Trinity : Bow down before their darkness and despair! Gear List FAQ on UV and Clear Protective Filters Macrophotography by LordV |
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9th of April 2008 (Wed)
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#5 |
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Cream of the Crop
Join Date: Mar 2005
Location: Portage, Wisconsin USA
Posts: 12,643
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Re: Macro Lens Question
Another reason to get the Sigma.
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GEAR LIST http://photography-on-the.net/forum/...&postcount=842 |
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9th of April 2008 (Wed)
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#6 | |
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Moderator
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Re: Macro Lens Question
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My Photography Home Page RSS Feed MP-E, EF 100mm, EF 180mm : The Macro Dark Unholy Trinity : Bow down before their darkness and despair! Gear List FAQ on UV and Clear Protective Filters Macrophotography by LordV |
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