70-200 barrel problem

hey guys

the 70-200 2.8 non IS i bought came in today.

the first thing i noticed when i compared it to my friends 70-200 2.8 IS is that the barrel (the metal part) seems to have some side to side play.

maybe a mm or two. i do not think this is normal.

the lens itself works fine, takes tack sharp pics, but the wobbling barrel bothers me.

can i take it apart myself and repair this? i have come across a guide online of someone taking apart their 70-200.

thanks

Wouldn't taking it apart void the warranty? If it's brand new, personally I wouldn't think that's a wise idea.

This *IS* normal. If it takes "tack-sharp pics" to quote your statement, what is the problem?

no i bought it used off a member on FM. its quite an old lens so i believe its expected.

the warranty is gone, i really think the screws inside holding in the barrel have just loosened over time.

TitusvilleSurfer wrote in post #4973721
This *IS* normal. If it takes "tack-sharp pics" to quote your statement, what is the problem?

i guess it just bothers me it wobbles everytime i pick it up... i guess if it aint broke dont fix it right?

boing

hi eryk, can you post the link of the website with the opened 70-200? thanks!

tma888 - http://home.fuse.net/p​ets/EOS/70-200/70-200.htm

use at your own risk

i emailed canon support to see what they would say, if its gonna be an expensive fix, i might just do it myself... :shrugs:

thanks eryk!

holy, man! that guy really knows what he's doin' eh!

yeah he does! lol... but it gives me a better idea of how things work inside. plus, i dont have the IS unit so it should be a bit more simple for me.

TitusvilleSurfer wrote in post #4973721
This *IS* normal. If it takes "tack-sharp pics" to quote your statement, what is the problem?

No, it's NOT normal. My 70-200 non IS does not wobble at all.

i think Titusvillesurfer is getting mixed up with the body / lens movement.

my problem is movement here:

eryk, I went and doublechecked again and my lens doesn't move at the focus ring at all. I think you should have it look at or fix since that is where the lens moves the most. If something is loose, it's bound to get looser over time.

thanks 4x4, i'm going to see how much canon wants to fix it...

if its too much, im going to return to the sender... its a beautiful lens though!

e r y k wrote in post #4973682
maybe a mm or two

If it actually has this much play, it is broke and falling apart.