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Old Feb 25, 2006, 7:03 PM   #1
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Got a genuine 49mm Pentax reversing ring today.

One problem; the focusing ring on both lenses only moves the body ... Not the internals which are now screwed to the camers! So the object/camera must be moved to gain focus:-)
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Old Feb 25, 2006, 7:03 PM   #2
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Old Feb 25, 2006, 8:27 PM   #3
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DOF is so small so thats what you have to do. this subject has been addressed quite a few times already. what i do is set everything on infinity. that gives you the furthest working distance. i like using just 1 lense and a TTL flash..
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Old Feb 26, 2006, 1:03 PM   #4
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robar wrote:
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DOF is so small so thats what you have to do. this subject has been addressed quite a few times already. what i do is set everything on infinity. that gives you the furthest working distance. i like using just 1 lense and a TTL flash..
Theres no infinity ... The lenses are screwed to the camera body, turning the focusing ring only moves lensless housing back and forth!!!!!!
The diaphagm doesn't move in relation to the end glass, does it??

Right about DOF!
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Old Feb 26, 2006, 5:14 PM   #5
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setting the focus on infinity gives you the greatest distance from the subject. if i remember right, if you set it at it's closest setting you will get a little more mag..
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Old Feb 26, 2006, 5:15 PM   #6
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sorry , i'm talking about when you areONLY using 1 lens reversed on the camera.
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Old Feb 26, 2006, 9:12 PM   #7
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???

A reversing ring allows no focus adjustment on a prime lens, to achieve focus you must move the camera. Zooms may exhibit all manner of strange behavior in this case but again, focus involves moving the camera.

These thing do work quite well with a little practice.

Ira
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