Canon 300mm f/4 L (non IS) Hood repair/removal

peppyuk

peppyuk

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Paul
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Hi all,
I've a Canon 300mm f/4 L USM lens, not the IS model, and the hood is a little loose and slides up and down on it's own. Seems to have very little restriction holding it still.

Does anyone know how to remove the hood?

TIA
 
I always get great service from Canon Elstree, maybe a call to them?
Looking round the net it doesnt seem to be a user fixable item.
Matt
 
Last edited:
I like to fix things myself, but I know when to leave things to someone who knows better.
I was hoping it would be easy to remove (probably is if you know how) but I'll get upset if I break it.
 
If it's the same design as the IS version (and the 400/5.6) then it's quite a simple task to remove it.

You need to remove the protective rubber from the front end of the hood. Just inside the front end there's a thin ring with several small slots (look very closely).....using a suitable tool, unscrew this ring (it looks similar to a filter thread). Once removed, you slide the remaining part of the hood backwards off the lens (having first removed the tripod ring).

HTH

Bob
 
Canon Bob said:
If it's the same design as the IS version (and the 400/5.6) then it's quite a simple task to remove it.

You need to remove the protective rubber from the front end of the hood. Just inside the front end there's a thin ring with several small slots (look very closely).....using a suitable tool, unscrew this ring (it looks similar to a filter thread). Once removed, you slide the remaining part of the hood backwards off the lens (having first removed the tripod ring).

HTH

Bob
Click to expand...


Cheers Bob,
Rubber surround comes off and I can see the ring with slots, how tight should this be? I'm putting quite a lot of effort and it's not moving, I assume it's normal thread rotation?
 
Ok, got it, bloody tight is the answer!
 
Indeed it had. Cheers for the help, got it off ok but it's only a friction slider so probably needs new felt to work properly (can't complain at 23 years old!). I assumed it was a twist to hold type and thought it was broken.
 
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