tkgross
Newbie
How does a wrinkled shutter affect performance and imge quality?
Do you need to replace?
Do you need to replace?
greyhoundman
Well-known
It doesn't effect the working of the shutter as long as it doesn't drag.
Canon's are known for wrinkled shutters.
Canon's are known for wrinkled shutters.
Xmas
Veteran
Yours cannot be worse than mine...
Noel
Noel
Stu W
Well-known
Search previous threads. I believe this has been discussed. From what I remember the opinion was that wrinkled curtains are not a problem and are common. Stu
Stu W
Well-known
Wow, you guys are fast. All these posts in the time it took me to answer. Stu
clintock
Galleryless Gearhead
I've never seen a canon shutter that was not wrinkled!
harry01562
Registered semi-lurker
A very common problem on Canon's with metal shutters. They are very thin, and easily wrinkled by a thumb and a moment of clumsyness 
In almost every case where I have seen or heard about a camera with the wrinkle, there was no issue with the wrinkle causing any problems. A light wrinkle is absolutely harmless, if the shutter fires normally.
It's possible to find a wrinkle free camera, but they are certainly not common. One of my 7s's is beautiful inside, but the other works just as well, with its wrinkle. If you are looking at a camera that you are considering, an adjustment in price is usually in order. Check the slow speeds for sticking, and assume a CLA if they are... estimate probably ~$125. The late cameras may be a bit higher.
Harry
In almost every case where I have seen or heard about a camera with the wrinkle, there was no issue with the wrinkle causing any problems. A light wrinkle is absolutely harmless, if the shutter fires normally.
It's possible to find a wrinkle free camera, but they are certainly not common. One of my 7s's is beautiful inside, but the other works just as well, with its wrinkle. If you are looking at a camera that you are considering, an adjustment in price is usually in order. Check the slow speeds for sticking, and assume a CLA if they are... estimate probably ~$125. The late cameras may be a bit higher.
Harry
Mackinaw
Think Different
clintock said:
Guess I'm lucky. The shutter curtains on my 7 and 7s are absolutely perfect.
Jim B.
Sonnar2
Well-known
Can it be that storage with shutter cocked causes wrinkles?
I cannot believe all Canon owners have clumsy thumbs.
I cannot believe all Canon owners have clumsy thumbs.
HuubL
hunter-gatherer
My wrinkled P shoots as nicely as my perfect 7!
harry01562
Registered semi-lurker
Sonnar2 said:
It's possible that storage that way could cause uneven pressures on the curtains that could wrinkle them. I think that most of them were crinkled by pressure from thumbs/fingers, however. The curtains are so thin that it doesn't take much pressure to cause them to wrinkle, as they are metal, not cloth. Cloth can bend and straighten, metal bends and crinkles. All of these cameras are ~40-50 years old, and many have been handled by people who knew little about them.
It's a sort of tribute to Canon's designers that the shutters can take this sort of punishment without suffering any damage that interferes with picture taking.
Anyway, in my experience, wrinkled shutters usually work without problems. Undoubtedly there are some out there that rub or break, but I think the majority just suffer cosmetic rather than functional damage.
Harry
Sonnar2
Well-known
My Canon VI, P and VII all have small wrinkles in the curtain, nevertheless releasing incredible smooth, quiete, and reliable (knock on wood!)
Whereas the cloth curtain on my L1 isn't up to that league and sounds less smooth and precise when the trigger is pressed.
Whereas the cloth curtain on my L1 isn't up to that league and sounds less smooth and precise when the trigger is pressed.
Mackinaw
Think Different
harry01562 said:
I agree with Harry. I once watched a fumbled-fisted friend stick his fingers directly into the shutter of a Canon F-1N while unloading film. He hit the shutter curtain with so much force it actually partially lifted out of the film gate. He gently wound the film and everything fell nicely into place, but the camera, which he still owns, bears the mark of his clumsiness. This was with a more robust titanium shutter too. I think the stainless steel curtains as used on the 7/7s are more delicate than titanium.
Jim B.
loganvillejc
Member
I've never had any issues with the wrinkled shutter of my Canon 7.