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Old Dec 22, 2006, 1:13 AM   #1
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I had just finished recovering and cleaning a Cosina 28-200mm 3.8-5.6 and put it on my DS to check the focus ranges.

Dangnation if it did not get stuck on the camera! :X I removed every part I could but still could not reach the mount so with heavy heart I protected the camera as bestI could and reached for the Dremel tool. Cutting off the aperture ring released the jammed 'A' pin and the camera wasfreed but the lens now lies in a pile of bits...:roll:
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Old Dec 22, 2006, 1:20 AM   #2
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Well that sux. Hope the DS is OK. Did much debris get into the camera and on or near the sensor? How are you dealing with this?
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Old Dec 22, 2006, 1:27 AM   #3
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Having partially disassembled the lens I could put tissues etc down the centre of the lens. I blew the camera out with the air puffer while holding the camera face down, hopefully the chips all fell out. I was careful during the cutting to position the wheel so that the majority was directed away from the camera. Still, I do feel a little uneasy about what might be in there.
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Old Dec 22, 2006, 2:34 AM   #4
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post pics!
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Old Dec 22, 2006, 4:46 AM   #5
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Thanks for sharing, will prevent me to even look at cosina for a while (a long while) Ronny
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Old Dec 22, 2006, 7:05 AM   #6
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mongrelchild wrote:
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post pics!
He can't....he destroyed his lens. :blah:

j/k I'd like to see the carnage too!
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Old Dec 22, 2006, 7:16 AM   #7
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i'm surprised you could dismantle the lens to that point with out rear access.

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Old Dec 22, 2006, 6:31 PM   #8
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Images from the crime scene.....

















As you can see Roy I was fortunate in that the stuck pin was accessable once the aperture ring had been cut and sprung off the mount.
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Old Dec 22, 2006, 6:58 PM   #9
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Looks like you did a good job to remove it without wrecking yout camera. Congrats!
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Old Dec 22, 2006, 8:55 PM   #10
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A bit late, but usually an automotive feeler gauge is all that's needed to unstick the pin..
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