Canon 17 TS-E Locking Knob Normal?

I just bought a 17mm TS-E, and I would like to confirm that my lens behaves normally.

In particular, the small, rubber locking knob for the Shift function somewhat awkwardly bites into the metal frame of the lens, unlike the other knobs. The other knobs do not contact the frame in this way. To try and add a little clarity, the ridges that you would grip to turn the locking knob for the shift function seem to somewhat haphazardly contact the frame as you turn the knob clockwise to lock the shift function in place. All of the other ribbed knobs are suspended above the frame, even in their locked position.

I do not think the function is impaired, but I would appreciate it if someone would confirm this is normal for the lens. Thank you.

My Shift lock too comes very close, if not touching the housing. I never noticed it before. It might be holding the knob in a locked position when it wedges against the housing.

I will check it tonight. Mine is also brandnew...

Pingman wrote in post #13027562
My Shift lock too comes very close, if not touching the housing. I never noticed it before. It might be holding the knob in a locked position when it wedges against the housing.

Mine does touch the housing, and I can even feel the ribs of the button lightly roll once or twice over the metal housing when the button approaches fully locked down. I don't disagree that the friction might arguably be helpful in the short run (although it might also wear down the plastic button against the metal housing pretty quickly), but none of the other knobs touch the housing this way, and they all function perfectly.

Essentially, it struck me that the button-to-housing contact was non-optimal, but if it's just the way the lens is made, then I'm not worried about it. I just wanted a person or two to say "yes, mine binds against the housing" or "no, mine doesn't."

I've not noticed this. I was shooting with it last night, I'll check it when I get home and post.

I also can confirm that the Shift knob is like that.

It seems to be that have to treat this knob with care...

Thanks, G-FOTO. That puts me more at ease. Awesome lens, too. I'm amazed by the photos.

post some. I'm having a lust affair with this lens. I'm tempted to rent it for an upcoming trip to Alaska, but I sucked with my former 24 TS-E

jffielde wrote in post #13027259
In particular, the small, rubber locking knob for the Shift function somewhat awkwardly bites..............

It may contact the body when it's in the full lock down position, but with out a magnifying glass I can't really tell.

MDJAK wrote in post #13032645
post some. I'm having a lust affair with this lens. I'm tempted to rent it for an upcoming trip to Alaska, but I sucked with my former 24 TS-E

What did you have problems with?

How long you got to listen?
I just could never get the hang of the movements and exactly what they did. I had the original one which didn't adjust in multiple planes, so I think this one would confuse me even more.

MDJAK

The shift is easy, the swing not so easy.

It took me reading a couple of articles, one of which had a animation for me to understand where the plane of focus was going to be at different angles of tilt and focus(at a given tilt, focus moves the angle). Then some practice with a couple of notes.

fortunately live view helps tremendously if you got it

Says it all. I know it looks like it has been laying in sand, but it is reflections in the paint.

Pingman

mine isn't that bad

I looked from the side of mine and there is enough clearance for some light to shine through. It's not touching the frame on my copy. Is the locking knob off-center on this copy?

That lens looks like a mossy old rock, also, or maybe sprinkled with confectioner's sugar...