Question about Canon EF 35-80 Lens

1 Answer

Auto focus on 35-80 kit lens not working. The camera works ok with the 75-300

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  • Canon Expert
  • 488 Answers

Replace the broken ribbon cable in the lens

Posted on Sep 02, 2016

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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poolseman
  • 206 Answers

SOURCE: lens auto focus sometimes does not work.

First make sure contacts on lens are clean ( see enclosed pic #2 ) . If this does not solve the problem the ultrasonic motor may be faulty pic #1.( sometimes switching on but sometimes not , will have to be replaced , unless there is a bad connection between the motor and lens pc board )
#1880e583.jpg #2 d5f637d.jpg

Posted on Nov 26, 2007

cammedic
  • 667 Answers

SOURCE: EF-S 17-85mm will not auto focus on fuul zoom my

A dirty filter or smudges/marks on the optics, especially the rear element can cause focus issues. Cleaning the pins contacts on the mount of the lens can be a simple solution too. Beyond that, circuit replacement is the next likely step.

Posted on Jun 06, 2009

  • 117 Answers

SOURCE: 28-80 mm sigma won't auto focus

The lens may not be a dynex type so it wont work on your 700

Posted on Aug 08, 2009

  • 77 Answers

SOURCE: Auto focus not working?

1st u reset the factory setting and then u see the lense is correctly fitted or not and the autofocus option is working or the manual focusing is there or not

Posted on Dec 14, 2009

  • 2 Answers

SOURCE: Canon 17-85 is usm lens very loose focus ring causing lens creep

I also have a 40D with exactly the same lens and fault. Over the course of a few months the lens became "sloppy" so if the lens was pointing towards the ground it began to creep. Towards the end it dropped to its full extent. About 10 days ago it locked up completely and I was unable to zoom at all. Returned to Canon as mine was just in warranty and they have fixed and returned it within 7 days. Very effecient even sending me a text message to say that it had been dispatched. The lens is now just like new and I only hope that this is not an annual trip.
Bottom line; I am an engineer by profession and I wouldn't touch it with a barge pole. To do these properly you need special tools and jigs to make sure things line up properly. It also needs to be done in a "CLEAN" environment.Do yourself a favour and leave it alone.

Posted on Jun 30, 2010

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1 Answer

Auto Distortion Control


Sounds like the problem is with the AF-S 18-55 lens not the body, Does the zoom and focus ok?

Mar 19, 2016 | Nikon D5300 Digital SLR Camera with...

1 Answer

I have a Canon 1000D wth the kit EF-S 18-55mm lens supplie dwith it. The lens does not show any of the auto-focus points when I hold the button halfway down. Is this becquse of the broken cable proble


The symptoms you've described are that of the possibility of a broken ribbon cable. As the second lens works on both cameras then the strong possibility is that it is the lens at fault and not the camera. Another quick test would be to put the 'faulty' lens on manual focus and check that it will focus in that mode. To replace a ribbon cable is not too expensive. With all items of modern photography they have intricate electronic circuitry and the definitive problem will only be known once a competent repairman takes the lens apart, but I think you've worked out the problem.

Aug 05, 2014 | Canon EF-S 18-55mm f/3.5-5.6 USN Lens

1 Answer

Canon rebel auto focus has stopped working


It may be the lens try a different lens at your nearest photography shop as the auto focus is usually a lens problem. other wise try resetting your cam remove all batts including the lithium one and the CF card wait about 20mins then replace if prob still persists then try again without any lens and see if it trys to focus and make sure the shutter is working if its ok so far then u need to try a new lens at local shop and then if it works the body is ok if not then it needs a service!

Jun 02, 2014 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

How auto focus


Most camera's, and the Olympus to work the same with auto focus. You place the AF target o the place you want to focus on. (the part that should be in focus in your picture) then press the shutter release button half and wait tip the AF conformation mark lighter up on the view finder. (the little round in on the bottom left) Then frame the picture as you want it shot and press the button complete.
I'm not sure your lens has a AF / MF switch, but that should be on AF all the time.
When you use non AF lenses, your cmarea can't focus automatically.
It should work fine with the kit lens. (lens that was originally delivered with the body)

May 04, 2014 | Olympus E-400 - digital camera

1 Answer

Auto Focus won't work


Another cause of auto focus failure is the circuit connecting the moving parts inside the lens. These "Flexi circuits" move with the lens components and wear out after a while. They are cheap enough to find on ebay and easy to replace.

Dec 06, 2013 | Canon EOS 450D Digital Camera

1 Answer

My pl1 camera has blurred pictures but when lens taken out, its ok.


Are you using an auto-focus m4/3 lens? I have about 20 lenses for this camera and only 1 of them is an auto-focus m4/3 lens. I have an adapter so I can use my 4/3 lenses on it in auto-focus mode along with other various mounts (including cctv) that do not support auto-focus. So if you are using a non-auto-focus lens, you will need to manually focus the pictures.
If you are certain it is an auto-focus lens, are you sure you have it set to auto-focus?
What settings do you have your camera set to (aperature mostly is what I'd like to know)? Try adjusting your aperature to be small (to increase your DOF).
Also what lens are you using and what is your focal distance? It could be your lens has a larger or shallower focal distance than what you are trying to achieve (like a macro lens doesn't work that great for landscape photography or a telephoto lens doesn't work great for macro photography).
Last thought: is your lens or sensor dirty? A dirty lens can cause focusing issues if it is REALLY dirty and a dirty sensor can too (sensor is a bigger pain to clean. I strongly recommend taking it to the pros as they scratch really easily). Dirty lenses can be cleaned with a blower and a lint free cloth and rubbing alcohol if those 2 things don't clear it out.

Mar 03, 2013 | Olympus E-pl1 Pen Digital Slr Camera w/ M....

3 Answers

What is error 99


What wide angle lens is it need f number it may be to old to work on eos 400d

Dec 27, 2009 | Canon EOS 400D Digital Camera

1 Answer

Lens will not auto focus with flash up


Not sure of you camera model, but the flash will fire momentarily when you try to focus indoors as there is not enough light for the auto focus to work. This is so the camera can determine a distance from the subject to the camera. This is called focus assist (ref to your manual). It will work outdoors as there is enough light and contrast for the focus to work.

Kit lenses included with the camera are notoriously known not to focus well in dark conditions.

Oct 11, 2009 | Nikon D60 Digital Camera

2 Answers

Nikon D80 Autofocus problem


sir, replace ur lens image reading sensor

Apr 06, 2008 | Nikon D50 Digital Camera

9 Answers

Nikon Auto focus problem with the 18-135 KIT lense


I had this problem and just realised it today. I found out that it was a a settings problem. What I had done without realising was I had my "AE-lock" button functioning as "AF-ON" which meant that my autofocus would only turn on when I held the shutter half-way and pressed that button. Once I turned this function back to its original state of "AF-Lock" as opposed to "AF-ON", it worked fine.
My symptoms were: • soft mechanical noise when holding the shutter (i thought it was trying to focus but couldn't. I thought the mechanics for the AF were faulty) • Couldn't take photos unless they were in the set conditions (which makes sense because it was locked on a certain setting until I pressed the AF-ON button).
My camera is only a few months old so I wasn't convinced it was faulty/broken. Make sure you test all of your settings and go through each of them before you chalk it down to equipment error.
Hope this helps.

Dec 03, 2007 | Nikon D80 Digital Camera with 18-135mm...

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