| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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It's megga dodgy mounting a non AI lens on a modern camera. They go on easy enough but can sometimes be impossible to get off.
If it mounted and removed OK that suggests to me it has been converted.
Can you take a pic of the lens mount? The cutout on the mount should relate to the max aperture of the lens. For an f5.6 lns the cutout should be just beyond the f22 mark.
Take a look here:
http://www.chr-breitkopf.de/photo/aiconv.en.html#ai_pos
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Robert.