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Telephoto Lenses with focal lengths longer than 60mm.

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  #1  
Old 15th June 2009
baldyb baldyb is offline
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70-300 lens hood

The lens hood on my new 70-300 is a tight fit and when I tried to remove it yesterday I unexpectedly pulled the lens barrel out about a cm, making a whirring, slightly clicking sound.

The lens still seems to focus ok and retracts fully when I turn the camera off but I'm still worried I might have damaged the mechanism in some way.

Any advice or reassurance would be welcome. I certainly don't intend to use the hood again!

Thanks in advance, Kevin

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Old 15th June 2009
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dbutch dbutch is offline
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Re: 70-300 lens hood

Hi

I think that this part of the design of the 70-300 is a weakness, I don't believe you will do any harm but there are a couple of things that I now do.

1/ zoom the lens out so you can hold the barrel when fitting/removing

2/ when storing in reverse don't look it in place just push on and a slight turn then into camera bag.

I have heard a couple of reports of problems with focus motors ref this lens on web so I guess it is something to think about

Dave
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Old 15th June 2009
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Smile Re: 70-300 lens hood

Quote:
Originally Posted by baldyb View Post
The lens hood on my new 70-300 is a tight fit and when I tried to remove it yesterday I unexpectedly pulled the lens barrel out about a cm, making a whirring, slightly clicking sound.

The lens still seems to focus ok and retracts fully when I turn the camera off but I'm still worried I might have damaged the mechanism in some way.

Any advice or reassurance would be welcome. I certainly don't intend to use the hood again!

Thanks in advance, Kevin

If its working ok now then I don`t think you have anything to worry about
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Old 15th June 2009
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Pete Riley Pete Riley is offline
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Re: 70-300 lens hood

Mine does that and has done for over a year. I have had no probs so I don't think it is anything to worry about.
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Old 15th June 2009
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Re: 70-300 lens hood

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Originally Posted by Pete Riley View Post
Mine does that and has done for over a year. I have had no probs so I don't think it is anything to worry about.
Me too... no problems so far; touch wood!

Regards

Graydon
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Old 15th June 2009
Ken Lister Ken Lister is offline
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Re: 70-300 lens hood

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Originally Posted by baldyb View Post
Any advice or reassurance would be welcome. I certainly don't intend to use the hood again!

Thanks in advance, Kevin

You can always leave the lens in MF mode when not in use, This avoids inadvertently stressing the focus mechanism. I have seen this advice given somewhere for Sigma lenses.
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Old 15th June 2009
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Re: 70-300 lens hood

Thanks for that, everybody.
I'll sleep better tonight knowing I haven't broken it.

Kevin
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Old 16th June 2009
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Re: 70-300 lens hood

Most zooms are designed to slide in when pushed on the sunhood, so don't worry.
My 40-150 does the same when pushed gently, acutaly I am glad it does as it protects against anything breaking in the zoom mechanism this way.

Peter
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Old 25th January 2010
meach meach is offline
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Re: 70-300 lens hood

I know I'm a bit late with this but I obviously experience the same disconcerting noise whenever I remove the lens hood from it's storage position, so I've developed the following solution:

1. Before attaching the lens to the camera stand it upright on a flat surface.
2. With my left hand I grip the lens cap and push down reasonably firmly.
3. Remove lens hood with my right hand - noise free.

After use either do the same after removing camera from lens or zoom right out and remove the hood before detaching the lens from the camera - attach it in its storage position after removing from camera else you'll get the same problem but the other way round.

Hope this helps - it certainly makes me feel better!!
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