35mm f/2 'Sticks' When Attaching

[adam_tomaszewski]

After many weeks of debates off another thread I had, I purchased my first prime for my 40D. The 35mm f/2. I am

very pleased with this lens as far as IQ, vignette, speed, etc. Actually, since I've been shooting with it for about 400

clicks I have only one issue with it ...

 

 

When attaching it to the mount on my 40D it comes about half-way through its rotation and then becomes difficult to

turn. Same for removing, the first half of it's rotation is difficult then it becomes smooth. Not so much I need to use

excessive force but picture (a bad pun? :] ) the feeling of free twisting it on then you encounter a piece of cardboard

in the mount and it twists but it requires effort. I do not have this problem with my 28-135mm kit or the 10-22mm

Canon lenses. I also do not show any lines or marks that indicate excessive metal-metal contact.

 

 

I couldn't find this being an issue on the boards. I'm a bit worried as I'd rather not ruin my 40D or my lens... Any

thoughts?

[adam_tomaszewski]

Wow. I just saw the forum on the 24 f/2.8 that had a VERY similar problem. Sorry I missed that everyone. I assume I'm in the same boat, will make sure my screws aren't loose (tee he) and if needed take the lens to Canon. Any responses will certainly be appreciated if you like.

[burachan40]

Mine does the same thing also. I figure they got the lens to camera tolerance a little tighter than on most other lenses.

 

I have other lenses that actually twist a little on the mount, even when 'locked' onto the body.

 

As I didn't see any negative effects either way, I stopped worrying about it...

 

Brian