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Hot take: a shutter that fired fine on my bench froze solid after 20 shots in the cold
I had a Canon AE-1 come in with a slow shutter, cleaned the magnets and it tested great at room temp, all speeds looking good on my tester. Customer took it out shooting in 25 degree weather up near Duluth and it locked up after about 20 shots. Turns out the old lube in the mirror box gets thick when it's cold, so what works on my bench at 70 degrees can fail out in the real world. Now I stick bodies in the fridge for 20 minutes before I call a shutter job done. Anyone else test cold before handing a camera back, or am I overdoing it?
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anthony_lane5521d ago
You really think a 20 minute fridge test proves anything? That is nothing like 25 degrees for hours with wind hitting the body, plus a camera that just warmed up from your bench and your hands. Old grease does not thicken on some neat curve, it can be fine at 40 and lock up solid at 25 once the metal in the mirror box gets cold too. A real cold test means leaving the body outside or in a freezer for a few hours, not a quick chill, and even then you are only guessing at what Duluth will do to it.
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