Currently, I have a Canon EF 100 macro. If I purchased the Kenko extension tube pack, and use all three together, how much more magnification will it give me? Is there loss of light and if so, how much?
Thanks in advance for your help.
Jan 28, 2011 13:49 | #1 Currently, I have a Canon EF 100 macro. If I purchased the Kenko extension tube pack, and use all three together, how much more magnification will it give me? Is there loss of light and if so, how much?
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themadman Cream of the Crop  18,871 posts Likes: 14 Joined Nov 2009 Location: Northern California More info | Jan 28, 2011 13:50 | #2 From the macro forum https://photography-on-the.net/forum/showthread.php?t=807056 With a 1:1 macro lens of 150mm focal length or less you can get to 2:1 magnification or higher using a full set of extension tubes (68mm) Another method is to reverse a smaller lens onto the front of the macro lens using a reverse male/male lens coupler. With a 50mm lens on the front of a 100mm macro lens you will get 3:1 magnification. Lens reversing like this is similar to adding diopter filters to the front of the lens although a 50mm lens is equivalent to a +20 diopter filter. A body reversed 18-55mm kit lens will give a zoom macro lens going upto around 3:1 magnification. The ultimate high magnification lens is the canon MPE-65 which goes from 1:1 to 5:1 magnification without additions. You can go higher than 5:1 using bellows arrangements or even microscope objectives on a suitable tube and fixing. I'm currently playing with a 10X microscope objective mounted on a lens cap fixed to the end of 75mm of extension tubes. Will | WilliamLiuPhotography.com
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Wilt Reader's Digest Condensed version of War and Peace [POTN Vol 1]  More info | Jan 28, 2011 14:25 | #3 Someone posted a test and said, "100mm macro lens with 68mm of tubes, focused to minimum distance. Near enough to 11mm, 22.5mm sensor width, so 2:1 mag seems about right" You need to give me OK to edit your image and repost! Keep POTN alive and well with member support https://photography-on-the.net/forum/donate.php
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DreDaze happy with myself for not saying anything stupid  More info | Jan 28, 2011 14:29 | #4 |
Jan 28, 2011 14:51 | #5 VERY HELPFUL!! Thanks.
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