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Am I the only one who fixed a sticky aperture by shooting it with a hair dryer
Had a customer bring in a Canon FD 50mm f/1.8 last month with an aperture that would not stop down past f/4. I was about to pull the whole rear element group when a guy at the shop in Portland told me to warm the barrel with a hair dryer on low for about 2 minutes. The old grease softened up and the blades snapped free on the second try, no teardown needed. Saved me 90 minutes of work but I am still not sure how long it will hold before it gums up again. Has anyone here done the heat trick and had it come back on them?
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shane_williams43d ago
Did you happen to notice any oil on the blades themselves when it freed up? I did the heat thing on an old Nikkor once and it worked great for about three weeks, then the blades got sluggish again right when I needed it for a shoot.
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