Question about Canon 28mm f/2.8 EF Autofocus Lens

Open Question

Canon 28mm/f 2.8 won't autofocus

I fell in love with this lens and was using it a ton and then one day all of a sudden it stopped autofocusing. Sometimes it does, but only about 10% of the time. I had it in the rain but it didn't get super wet at all - not any more than my cameras have gotten wet in the rain before. It has been knocked before but it worked after that. I am so frustrated. :( What should I do? I have tried cleaning the contact points between the lens and the body and it didn't fix it.

Posted by on

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

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

SOURCE: Autofocus on 300mm 2.8 IS not working with 50D

Make sure the AF/MF mode button on the lens is set to AF.
What focusing mode do you have selected in the camera? Single Shot, AI focus or AI Servo? 
If Custom Function "C.Fn IV -1 Shutter button/AF-ON button" is set to option 2 or 3, the AF will start when you press the AF-ON button.
I hope this help you!
/Chris

Posted on Jan 19, 2009

SOURCE: autofocus function will not work on Canon 17 40mm 1.4 EF lens

Since the problem is limited to this lens, I highly doubt that you would have to replace the cameras AF sensors.
Since you only have the problem with this lens, I am afraid that you will have to get the lens repaired. Is the lens also 3 years old? Did you get it with MACK extended warranty?
Sometimes, Canon do these kinds of repairs for free, if they discover that there was some manufacturing error that caused it to fail. So be sure that you get it to a certified canon workshop. 
I hope this helps, 
/Chris

Posted on Jan 20, 2009

  • 83 Answers

SOURCE: My Canon EFS 18-55 mm lens stop focusing

Hello,
Unfortunately, unless you suspect dirt in the lens (been taking pictures on the beach maybe? ;), this sounds like autofocus motor failure.
Even if you manage to source the replacement motor, swapping it is a really fiddly operation.
I would suggest selling the lens for spares on ebay and getting a new one.
They are fairly cheap these days. I recommend getting the IS version - it's much better than the original, although build quality is similar.
Good luck,
Raf

Posted on Nov 09, 2009

  • 1 Answer

SOURCE: Cannot auto focus

Canon 28-135mm f/3.5-5.6 EF IS USM AF - SEEMS TO HAVE LOST ITS ABILITY TO FOCUS - DOES OKAY MANUALLY, BUT AUTO HAS LOST IT'S SPARK - NO MORE ONE HANDED SHOTS! DOES NOT SEEK A FOCAL POINT BY GOING TO AND FRO - DOES IT NEED CLEAINING, CALIBRATION, OR WHAT?

Posted on Jul 28, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Autofocus on Nikkor 18-55mm lens doesn't work


probably you have problem with the focus motor, i ever have same problem and need to replaced the focus motor.

Jun 08, 2013 | Nikon Nikkor 18-55mm f/3.5-5.6G ED AF-S DX...

1 Answer

Canon Rebel XSi won't autofocus and makes grinding sound


There is nothing that auto-focuses except the circuit in the body - all the motors, gears etc. are in the lenses. If this is a 18-55 lens then more than likely the long shaft gear has broken teeth - a very common problem.

Mar 30, 2013 | Canon Rebel Cameras

1 Answer

Hi there, I don't know if it's a problem or not (I can live with it :) ). I just got a Canon EF 50mm f1.8 II lens, and I really love it. But: When I'm using the eye-level viewfinder (and not...


You may just have the left auto focus points selected. You don't say which camera model you have. If on the back of your camera you can see a button with an icon showing 5 small white blocks in a plus sign in a white box press this to select the auto focus points. It should show the available auto focus points and then use the left/right (wheel) button to change the selection

Jul 01, 2011 | Canon EF 50mm f/1.8 II Lens

1 Answer

Can i use my 500mm mirror lens with my EOS Rebel?


Assuming the lens has a Canon mount, yes. You won't get autofocus, of course, and metering probably won't work, forcing you to set the exposure manually.

May 31, 2011 | Cameras

1 Answer

I just purchased a Sigma 2.8 f=28mm for canon but I don't know if it will fit my Canon EOS 500 N (same as Rebel G) 35mm SLR film camera. Can you help with this question.


Canon EOS 500N has an EF lens mount, so all lenses with Canon EF mount will fit. All lenses with MF and EF-S won't fit. If you purchased Sigma 28-70mm f/2.8 EX, then it have EF mount and will fit EOS 500N.

Jun 06, 2010 | Sigma Zoom Wide Angle-Telephoto 28-70mm...

1 Answer

Autofocus Failure - stopped working


Replace the broken ribbon cable in the lens

May 23, 2010 | Canon Zoom Wide Angle-Telephoto EF...

1 Answer

Sigma 28-300mm autofocus problem


You will need the interupter replaced the iris is closed down so the a/f will not lock on

Jun 16, 2009 | Sigma AF 70-300mm f/4.0-5.6 DL Macro Super...

1 Answer

Nikon 18-55 zoom lens doesn't autofocus


You might like to check if the A/M slider switch on the lens by the Nikon label is set to A.
It sometimes gets moved accidently.
Set to M the lens will not autofocus.

May 24, 2009 | Nikon Normal AF Nikkor 50mm f/1.8D...

1 Answer

Autofocus on my Canon 28-135mm f/3.5-5.6 EF IS fails


Hello. First, check the contacts on the lens mount--you're looking for bent pins, oxidized(odd-colored) metal, damaged contact points, etc. The camera must communicate reliably with the internal circuitry of the lens unit. If there is any dirt, moisture, intermittent contact going on, the sensitive focusing electronics will be effectively blinded. If all is fine with the contacts, then the problem lies with the circuits in the lens that provide critical focusing data to the camera. Movement of certain parts causes electrical changes to occur at a calibrated rate--if the camera loses connection, it can't tell if the lens is actually adjusting. You'll have to send the lens in for repair--http://www.usa.canon.com/consumer/controller?act=SupportIndexAct. This address should get you started.--Hope I helped!---Rick

Mar 19, 2009 | Canon 28-135mm f/3.5-5.6 EF IS USM AF Lens

1 Answer

Canon 70-200 2.8L IS USM Lens


Its modes for the IS

mode 1 is for general use

mode 2 is for when panning horizontally.


good day
yitzy

Oct 18, 2008 | Canon EF 70-200mm f/2.8L IS USM Autofocus...

Not finding what you are looking for?
Canon 28mm f/2.8 EF Autofocus Lens Logo

Related Topics:

28 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Cameras Experts

kakima

Level 3 Expert

102366 Answers

TC CAMERA REPAIR.Com...

Level 2 Expert

168 Answers

old marine
old marine

Level 3 Expert

1921 Answers

Are you a Canon Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...