Question about Tamron 28-75 F2.8 XR AF Lens

Open Question

On Sony Alpha55 the lens cannot auto-focus beyond medium zoom with new Tamron 28-75mm f2.8, no matter what the AF configuration of the camera. The focus simply hunts rapidly blurring/sharpening (AF motor "going crazy") and forbidding an exposure without switching to manual focus. At wide ranges, the focusing works fine. Is this a programing issue with the lens--is it not compatible with the Sony Alpha? Bob

Posted by on

5 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

  • 51 Answers

SOURCE: auto focus problem

My first suggestion is to send it back if it is under warranty.

The grease probably got so thick, from the cold, that it caused too much resistance for the auto-focusing mechanism. You probably have damaged the focusing mechanism in the lens. You cannot repair this, yourself. I don't know how cold is too cold but it really shouldn't have done that.... Tamron makes cheap lenses. Try and exchange it for at least a Sigma.

Posted on Dec 29, 2007

  • 8 Answers

SOURCE: Tele converter option for Tamron 28-75mm f2.8

This is a lens for Sony/Minolta cameras. It is not compatible with the Nikon D90. Hence a Teleconverter for Nikon will not work on this lens to mount it to a Nikon D90.

Posted on Jan 15, 2009

  • 685 Answers

SOURCE: I am using a Tamron AF 18 - 250 mm lens on a nikon

Make sure the lens is set for the largest f number on the aperture ring. there may be a lock to prevent the ring from turning in the future. Locking the lens of the largest f number allow the camera to set the lens through the camera. This is normal on most of the newer cameras.

If the lens does not have a move-able aperture ring, then dismount and remount the lens, making sure the lens is completely mounted and locks into place, completely lining up the contacts inside. If this does not work The camera or lens may need servicing.

Posted on Nov 24, 2009

Obertelli
  • 3006 Answers

SOURCE: my lens no longer auto focuses and is continually

Unfortunately this is a risk when you use third-party lenses. The camera manufacturer's lens to body protocols are not open source nor do they licence the technology to alternative suppliers, so all that companies like Tamron can do is to try and reverse engineer the system.

You only have two possible fixes:-

1. Replace the lens with a Sony Alpha model; or

2. Contact Tamron to see whether they offer an update service for your lens.

The latter is certainly possible with some brands/models, but the costs have historically varied between "you pay just the shipping and handling" right up to "it's cheaper to buy a new lens".

So you either pay a high price for Sony Alpha genuine lenses which are guaranteed to always work with Sony Alpha bodies and firmware updates, or pay repeatedly for third party lenses. "You pays your money and you takes your choice".

Posted on Jun 18, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Tamron 70-300mm Tele-Macro lens that doesn't auto focus. It's like it is locked up. I have tried moving the normal/macro switch and that doesn't move either. Any ideas will be welcome.


If that is the only lens that you have for that camera, it could be the camera that is bad. There is a sensor in the camera that measures the focus and they do wear out.

Feb 10, 2014 | Tamron 70-300mm f/4-5.6 Di Zoom Lens for...

1 Answer

Hi ,i have a tamton 70-mm that it stop focusing manuakly whe n i was using it yesterday,may i ask how it would happent,and how much would cost to fix it?


Do you really mean it stopped focusing manually, or did it stop auto-focusing? If it is the latter, check the M/AF switch on the lens near the camera body and make sure it is set to AF.

Sep 21, 2011 | Tamron 70-300mm f/4-5.6 Di Zoom Lens for...

1 Answer

I have a Nikon d3000 and a Tamron AF 55-200mm lens. I cant get the lens to autofocus with my nikon


The Nikon D3000 does not have a focusing motor built-in, relying on the lens to have a motor. The Tamron AF 55-200mm does not have the necessary motor; it only auto-focuses with Nikon cameras that have the motor in the camera body.

For Nikon lenses, you need lenses designated AF-S. For Tamron, you need lenses designated USD and/or BIM.

That probably wasn't the answer you wanted to see, but there it is.

Aug 08, 2010 | Tamron 55-200mm f/4-5.6 Zoom Lens for...

1 Answer

Auto focus stopped working


Try cleaning the contacts on the camera and the lens, this is what usually prevents AF from working correctly.

Jul 26, 2010 | Tamron 18-250mm F/3.5-6.3 AF Di-II LD...

1 Answer

I have a Tamron 28-200 lens for my Canon EOS 20D. My brother took it to Africa, and since it's return, the lens will no longer zoom out by turning the zooming ring. I spoke to another photographer who...


Some of the long tele's like that have some sort of locking mechanism on the side to prevent lens creep. Look for switches other than your aperature lock and auto focus/manual switch.

Mar 15, 2010 | Tamron 70-300mm f/4-5.6 Di Zoom Lens for...

4 Answers

Tamron 28-300mm Model 185D Auto Zoom on Nikon d40


Autofocus function on the D40 only supports lenses with the
AF-S feature, which have an autofocus motor built into the lens,
instead of using an autofocus motor drive built into the camera.

The Tamron lens you have, does not have a built in motor and
the autofocus function relies on the motor drive in the camera.

It will not work with the D40 or D60, but it will work with other
Nikon digital SLRs, such as the D80. Need to get an AF-S
type lens or upgrade to different Nikon digital SLR. Unless
you do this, you will have to manually focus the Tamron lens.

All of the Nikon DX (for digital) series lenses are also AF-S
type, so they will work with the D40, which is designed as
an entry level digital SLR, therefore it is intended primarily
for use with DX lenses, which are typically sold in a kit with
the D40. Most common one is Nikkor 18-55mm DX AF-S.

Other Nikon AF-S lenses made for film cameras (FX type)
will also work with the D40, but these tend to be expensive
professional models. DX series lenses tend to be more
affordable. You might consider the 18-200mm DX AF-S
as an alternative to the Tamron, but these are not cheap.

Apr 19, 2008 | Tamron 28-300 MM XR AF F/3.5-6.3 LD ASP...

1 Answer

Auto focus problem


My first suggestion is to send it back if it is under warranty.

The grease probably got so thick, from the cold, that it caused too much resistance for the auto-focusing mechanism. You probably have damaged the focusing mechanism in the lens. You cannot repair this, yourself. I don't know how cold is too cold but it really shouldn't have done that.... Tamron makes cheap lenses. Try and exchange it for at least a Sigma.

Dec 24, 2007 | Tamron 18-250mm F/3.5-6.3 AF Di-II LD...

Not finding what you are looking for?
Tamron 28-75 F2.8 XR AF Lens Logo

Related Topics:

66 people viewed this question

Ask a Question

Usually answered in minutes!

Top Tamron Cameras Experts

kakima

Level 3 Expert

102366 Answers

Steve

Level 3 Expert

3287 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

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

Answer questions

Manuals & User Guides

Loading...