Question about Canon EF 24-70mm f/2.8L USM Lens

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Need stop screw for canon lens (24-70mm f2.8)

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You need to get this part from a Canon repair facility. If the lens is still under warranty, your best bet is to send it in for warranty service. If it isn't under warranty, you can send it in for "cleaning" and "service" - they should replace the missing screw as part of this routine service.

Posted on Jan 05, 2009

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How to mount 67mm thread lens to t4i body only canon


One side of the reverse adapter has a 67mm thread, the other side has a lens mount. Mount it to the camera body as if it were a lens. Bear in mind that it's intended to screw onto the front of a lens and then mounted onto a camera to put the lens onto the camera in a "backward" position.

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Canon 17-85 IS zoom ring locked at 17mm.


Sometimes, if that lens has heavy use or if it has been traveled with a lot, several of the internal zoom screws may come loose deep inside the lens and cause the zoom to freeze. It requires a complete disassembly of the lens to reach the screws and re-seal them so it does not happen again.
Bob Kilbourn www.camerarepairs.com

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I have a Canon Power shot S3 . Can I use a Sigma AF-Mf zoom lens 100-300mm to it. If Yes, what type adapter to use.? I also have a 35-80mm canon lens. can this be used ? Thanks.


Your camera is a fixed lens compact model. You cannot fit other lenses to it unless they are specifically designed as supplementary lenses which screw onto the existing lens filter thread.

There are no adaptors you can safely use either, the only ones would be lens reversing rings which are used to mount lenses backwards for ultra close-up macrophotography, but the weight of the lenses you propose on the end of your existing lens would break your camera.

If you wish to use interchangeable lenses then you need to obtain an SLR or an interchangeable lens rangefinder camera.

Oct 03, 2010 | Canon Camera Lenses

1 Answer

Canon 24-70MM 2.8 lens screw housing damaged


With a lens of this quality its worth checking whether it's repairable. try Protech, Uckfield for an estimate

Mar 15, 2010 | Canon EF 24-70mm f/2.8L USM Lens

3 Answers

My Canon EFS 17-85 MM is locked at the 17 MM position (although it doesn't have a "locked" feature. What is the problem?


Try taking the lens off AF mode and manually turning it and trying to focus. If that doesn't help then it sound like you have an internal fault.

Jan 11, 2010 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

1 Answer

Canon 28-135mm IS lens makes clicking noises


Check out the mirrors on the camera, This is a pretty popular problem with the canon cameras. The lens gets dirty in the camera and it sends a error code

Feb 08, 2009 | Canon 28-135mm f/3.5-5.6 EF IS USM AF Lens

1 Answer

Sigma 70-300 AF lense


if the lens is the older type with a macro switch which has 2 screws holding it on to the lens it will not work.If it a super 70-300 you can put the camer on AV set iris to F22 if you have a stopdown button see if the lens stops down it ok if noe it will need a rechip or a new interuper

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3 Answers

17-85MM IS - mechanically stuck at 17mm - will not zoom -


Hi all,

I've had the same problem. So I decided to give it a try because I didn't find any solutions on the net. Unfortunately you have to pay pretty much for a Canon lens while the internal quality is pretty cheap, the whole mechanism is of plastic and this is also the problem. And after a while some screws will vibrate loose from the plastic components and canon could have done this better.

Probably within your lens is now one of the three zoom mechanism screws complete removed and you will notice that there is some abnormal movement in the zoom part. Unfortunately these screws are deeply mounted inside the lens and you need a lots of skill and patience to get it fixed.


First you need to completely disassemble the lens, and please make a picture of your lens after every step you make because I had to disassemble my lens 4 times! Because some of the elements was not right in place.

I will try to place a more complete description later today including some pictures.

Regards Gert


Aug 30, 2008 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

1 Answer

I have a Canon EF 300mm f/2.8L USM Lens


Here is a link to many Canon products in PDF form: Canon Parts Lists


Unfortunately, the only 300mm 2.8 lens listed is the IS version

The procedure is not that complicated, but you need to pay attention to the connections on the circuit board. The mount is removed, and you need to remove the small screws that hold the connector board to the mount ring first.

I cannot do live chat due to I use a Mac, but I will monitor the thread if you have questions,

Kevin

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2 Answers

Lens canon 28-135 IS


Need to open Lens?

1. Front Lens Cap- press the two side taps in and pull out.
Rear Lens Cap- twist and pull out.

2. Remove and Repair: Small Phillip Screwdrivers, gloves and mask.

From the rear, the electrical contacts- remove all those
screws. Some screws are locked with clue. Pinch black
plastic ring that is part of those contacts and gently remove out.
Don't brake the electrical contact ribbon cable.

Good lock.
atdlee@netzero.com
at

Dec 23, 2007 | Canon Zoom Wide Angle-Telephoto EF...

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