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05-07-2012, 09:36 AM   #1
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f50- 1.7 question

Have three days to send back.Might have a small/big problem.
Holding the lens and shaking the lens barrel makes a rattling sound. If you hold it by the lens caps and shake no rattle. Also at the very end of it focus throw its gets a little tight. In good condition and the first photos are sharp at all apertures. I'm thinking it may have been dropped, but no damage to exterior.

Any opinions?

05-07-2012, 09:53 AM   #2
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Mine has a slight rattling sound when shaken as described, more noticeable with the lens retracted than it is with it extended. Focus throw is smooth all the way through though. I don't think the rattle is problem unless you can see the barrel wobbling. But the focus throw should not have any stiff areas in it. Does it get better if you work it?
05-07-2012, 10:09 AM   #3
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Thanks for the reply. The tightness starts right a the 0.45 meter mark. I was wrong on the end of the throw, it would be the start of throw, smooth from there on.. Just received, so haven't worked with the manual focus that much. AF is working great. Will do further focus testing tonight. My main concern is the rattle, none of my other AF lens rattle, yet. None of myother lens rattle.

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