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Tamron sp 17mm 3.5 has unscrewed

The focus ring started to slip, and not move the barrel. In attempting to understand what was wrong with it I managed to unscrew the whole lens barrel from the focus ring (oops) mechanically sound. I just need to understand how to fit it all back together again. I now understand that all I need to have done was tighten the little screws under th erubber ring of the focus ring. Too late. The lens has a reverse screw, but I need to line up the aperture mechanism etc which is impossible if I'm screwing down onto it. A site with pictures would be ideal! Cheers, from a very upset wide angle fan.

Posted by 0mani0 on

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3 Answers

Anonymous

It would be great to be able to see some les diagrams hey

Posted on May 22, 2008

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Anonymous

When disassembling the elicoids, one must care to procede very slowly and mark the points at which the parts separate. Then follow the reverse procedure. A good amount of mechanical skill is necessary.
This is the minimum requirement to avoid disaster.
The first time I attempted to disassemble the elicoids of a Zeiss Biotar, I took it apart in two minutes. To reassemble, four hours. Now I can do it in twenty minutes.

Posted on Mar 26, 2008

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Gareth Cockram

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It might just be better to take this to somewhere like Jessops and see if they will do it for you..

Posted on Sep 27, 2007

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2 Answers

I have a canon1000dband have brought a Tamron 55-200mm lens that will not autofocus. The ring is turning and the the lens goes in and out but just wont focus. my other two lens will autofocus. Please help


Hi Lyndsay. If the lens barrel is twisting, and the optics are not bringing the the object in the viewfinder in and out of focus, there is a problem with the lens. The motor is operating but there is a disconnect with the optics. This lens should be returned to Tamron for repair.

The twisting of the barrel is the lens "hunting" for correct focus. Now, this is not to say there is a problem if the barrel is twisting but the image is getting sharper and then blurry again. When this is happening, the lens is hunting for focus, but there isn't sufficient light for the camera to sense when the subject is in focus. The camera is commanding the lens to find focus by running the lens to minimum distance and out to maximum distance to find it. If this is the case, bring the camera to a well lit space and see if it can successfully find focus. If it does - the problem is the lack of light.

I hope this helps and good luck!

Oct 03, 2011 | Canon EOS Digital Rebel XS / 1000D IS...

1 Answer

Lens will not extend when turned on message on screen lens error


Hi,

This error indicate that focusing ring got stuck or jammed due sand, dust or may be due to external shock caused by dropping the device.
  • Try compressed air. With a fine tip blow off gun around lens barrel. It should remove all dust and sand. Turn the camera on this will solve the problem.
  • You can gently bump the camera to try to free the focusing ring.
  • You can try to turn camera ON at the table (facing it to the ceiling), don't put camera down face to the floor when opening.

If motor is running but lens won't retract sometimes lens would slip off with the gear or break off a tooth in the gear when it gets dropped. Try to gently move the lens barrel around with the finger and see if it is moving, but if tooth or gear is broken lens will move once or twice then it will stuck again.

Else your camera need to be disassembled to get at the focusing ring at Service Center.

Thanks and have a nice day

Jul 04, 2011 | Fuji Cameras

1 Answer

WHEN I OPEN MY CAMERA THERE IS A WORD E18.


Hi,

Canon E18 error shows when the lens gets stuck while trying to extend.
  • This error indicate that focusing ring got stuck or jammed due sand, dust, may be due to external shock caused by dropping the device. try compressed air. With a fine tip blow off gun around lens barrel. It should remove all dust and sand. Turn the camera on this will solve the problem.
  • You can gently bump the camera to try to free the focusing ring.
  • You can try to turn camera ON at the table (facing it to the ceiling), don't put camera down face to the floor when opening.
If motor is running but lens won't retract sometimes lens would slip off with the gear or break off a tooth in the gear when it gets dropped. Try to gently move the lens barrel around with the finger and see if it is moving, but if tooth or gear is broken lens will move once or twice then it will stuck again.

Else your camera need to be disassembled to get at the focusing ring at Service Center.

Thanks and have a nice day

Jul 04, 2011 | Canon PowerShot A470 Digital Camera

1 Answer

LENS OPENING BUT NOT SHUTTING


Hi,

Its seems lens got stuck in the barrel due to external shock caused, Try out following steps-

  • If motor is running but lens won't retract sometimes lens would slip off with the gear or break off a tooth in the gear when it gets dropped. Try to gently move the lens barrel around with the finger and see if it is moving, but if tooth or gear is broken lens will move once's or twice then it will stuck again.
  • You can gently bump the camera to try to free the focusing ring.
  • You can try to turn camera ON at the table (facing it to the ceiling), don't put camera down face to the floor when opening.


Else contact Olympus, your camera need to be disassembled to get at the focusing ring at Service Center .

I hope this will solve your problem

Thanks..!!

Jul 04, 2011 | Olympus Mju 725 SW Digital Camera

1 Answer

It is brand new Tamron 28-75 f2.8 for Sony mount. When it is focusing on an object and rotates from one end to the other velocity causing to shift image slightly in the direction of rotating AF ring....


Hi,

You should turn the aperture ring on the lens toits smallest setting (largest f/number). If the ring has a lock, lock it inplace. You control the aperture from the camera body, just as you would on alens with no aperture ring.

Let me know if you need more information


Thanks

Feb 18, 2011 | Tamron 28-75 F2.8 XR AF Lens

1 Answer

When power ON the screen displays"Lens Error!" & lens does not open.


Hi,
This error indicate that focusing ring got stuck or jammed due sand, dust, may be due to external shock caused by dropping the device.
  • You can gently bump the camera to try to free the focusing ring.
  • You can try to turn camera ON at the table (facing it to the ceiling), don't put camera down face to the floor when opening.
If motor is running but lens won't retract sometimes lens would slip off with the gear or break off a tooth in the gear when it gets dropped. Try to gently move the lens barrel around with the finger and see if it is moving, but if tooth or gear is broken lens will move onces or twice then it will stuck again.

Else your camera need to be disassembled to get at the focusing ring at Service Center.

Thanks...!!
4 thumbs rating keep us motivated to answer more free questions.

Oct 04, 2010 | Nikon Coolpix L1 Digital Camera

1 Answer

Zuiko 70-300mm lens focusing problem


Haha!!
Maybe its something you're not doing, LOL.
Look on the side of the lens. Most of the 70-300 macros have a slide switch. My Tamron, for instance, needs to be zoomed out to 300, then slide the switch to Macro and its ok. Look for the slide switch. You might also notice lines of a different color to denote Macro.
Some days it too tough to be smarter than the lens,
LOL.

Dec 31, 2009 | Olympus Zuiko 70-300mm f/4-5.6 Digital ED...

2 Answers

I am using a Tamron AF 18 - 250 mm lens on a nikon d90 and some times on auto focus F---- is displayed and i cannot take a photo. Is this something to do with the match of lens to camera ?


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.

Nov 22, 2009 | Tamron 18-250mm F/3.5-6.3 AF Di-II LD...

1 Answer

Tamron 17-50 loose ZOOM ring (not Focus ring or Front Element)


the same thing just happened to me like 3 days ago. The zoom ring was kinda sticky and then all of a sudden it just spins around and doesnt extend the barrel at all.

Nov 16, 2009 | Cameras

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