Can you manually focus a reverse-mounted Canon EF 50mm f/1.4 on a Rebel T3i for macro?
Asked 8/9/2012
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If I reverse-mount a Canon EF 50mm f/1.4 on a Canon Rebel T3i/600D for macro photography, can I still focus manually with the focus ring, or do I have to focus another way?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
14y ago
2 Answers
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We have a great blog post here at our own photography stack exchange blog that explains the process very thoroughly: Take macro shots like this for less than the cost of a pizza
To answer your question, yes you can still manual focus, that is the only option as autofocus will not work when reverse mounted. Manual focus is a bit odd feeling, because the mount is so small and doesn't really give a solid "mount" feeling as a normal mount would.
You don't directly have control over aperture, but you do on a Canon body by using the depth of field preview button(Using tack on a Nikon lens). The blog post listed above has the details on how to achieve this specifically, but it is a very nice "hack" indeed.
Originally by user4892. Source · Licensed CC BY-SA 4.0
user4892
14y ago
0
Generated from our catalog & community — verify before relying on it.
With a reverse-mounted Canon EF 50mm f/1.4, autofocus will not work, and the lens’s focus ring generally will not provide usable focusing in the normal way. On this type of EF lens, reverse mounting means you typically achieve focus by moving the camera closer to or farther from the subject rather than turning the focus ring.
Aperture control is also limited when the lens is detached from the camera, though Canon users sometimes use the depth-of-field preview button trick to stop the lens down before removing it.
So for practical macro use: expect no autofocus, and expect focusing to be done mainly by physically changing camera-to-subject distance.
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