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10/25/2008 06:19:56 PM · #1 |
I have a 50mm 1.8 on Nikon d90. I have extention tubes.What is the difference in just using the extention tubes or using the 1.8 "reversed" with or with out the tubes?
What exactly does the "reverse" do? |
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10/25/2008 06:30:32 PM · #2 |
Extension tube allows you to get closer. Sometimes the minimum focusing distance is too far and using one will allow to get closer.
Using a reverse 50mm will magnify the image. How much magnification depends on the other lens used.
Message edited by author 2008-10-25 18:32:33. |
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10/25/2008 11:58:33 PM · #3 |
| you cant focus automatically with the reversing method though... at least I couldnt. I was using the old cheapo Sigma 70-300 with the 50mm reverse mounted on the end. You get immense magnification but fucussing is very very twitchy as the DOF is so thin. |
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10/26/2008 12:05:51 AM · #4 |
With the lens reversed, you will be so close that you can just rock the camera back and forth for focusing. You can try hand holding the 50 with an old UV filter in front of your camera backward to see how it looks in the viewfinder. With the AF D series lens, you can set the aperture manually when you are shooting. It will be cumbersome if you want to shoot at f 8 or smaller, because you will have to open the aperture to focus, then stop it back down to shoot.
I use ext rings often, and also have a Vivitar "macro focusing 2X telextender" that I like a lot.
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10/26/2008 07:05:44 AM · #5 |
If I remember, you can set a smaller aperture with any reversed EOS lens on the canon system.
This is done by having the lens on the normal way around, setting the aperture you require (for example f5.6) then press the DOF preview button, hold that down then turn the camera off. Remove the lens and reverse and the aperture should still be set at f5.6 - not sure if this work for Nikon.
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