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Camera how u unjam the camera lens

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  • poundpupee May 02, 2008

    i have a sanyo digital camera vpc 503 and the lens will not open

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I have a sanyo vpc 503 and the lens will not open all the way

Posted on May 02, 2008

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How do I get my Nikon d5000 to recognize the lens with extention tubes?


Without any electronics the camera cannot recognize the lens. Set the exposure mode to "M" (Manual). You'll have to set both the aperture and shutter speed yourself.

You'll also get no exposure assistance from the camera's light meter. You can review the picture after taking one and/or use the histogram to tune the exposure.

Sep 30, 2013 | Nikon Normal AF Nikkor 50mm f/1.8D...

1 Answer

I have sigma 70-300mm lens. But its autofocus mode is not working.please suggest solutions....what i can do?


You have not supplied enough information, however with the Sigma lenses here are a few things that could be a problem.

Is the switch from auto to manual focus set to auto focus.

Is the lens the proper mount for the camera it is installed on (meaning have you used an adapter to go from a Nikon to a Canon mount?) if so then there will be no electronic communication and the lens will only function in manual focus mode.

Is the lens compatible with the camera model? (meaning some newer cameras set the lens aperture in the camera while some older lenses set the aperture on the lens.)

Part 1 of 2 Have you installed an older "film" lens on a newer version digital camera?

Part 2 of 2 Have you installed a digital full frame lens on a Canon "S" mount with the APS size sensor with the 1.6 focal factor?

Have you changed the camera model to a newer Canon EOS

Have you updated the camera firmware recently?

Have you lightly polished (cleaned) the contacts between the camera and lens?
Have you received an error code 99?
Cleaning the gold contacts on the lens and camera body can be done with a clean pencil eraser and lightly polish the matting surfaces making sure no dust gets into the back of the lens or the camera body. Hold the camera lens mount down while lightly polishing the contacts same with the lens. Do not wipe clean with a facial tissue or use any type of liquid cleaner.

Also third party lenses like Sigma often do not have the compatible electronic "chip" to properly communicate with all Canon EOS cameras. Meaning if you had the lens on a Canon EOS 20D and then put it on a Canon 50D chances are it won't work.

Is the lens properly locked onto the camera body dismount and remount the lens generally solves this problem.

If non of the above isn't the problem then a trip to a repair center is needed.

May 03, 2011 | Sigma AF 70-300mm f/4.0-5.6 DL Macro Super...

1 Answer

Lens doesn't work but the letter "F - -" blinks on and off on the camera.


"F--" means the camera thinks there is either no lens attached or a non-cpu lens is attached. Looked on bottom of camera for a very small reset button. If one is there, turn camera on and press for about 2 seconds. With camera off, remove lens and with a slightly moistened pad, clean electrical contacts on bot lens and camera body. If neither works, see if a different lens does work. If a different lens works, then it is the original lens, if not, it is the camera.

Dec 21, 2010 | Sigma 70-300mm f/4-5.6 DG Lens

2 Answers

Lens error,restart camera


Hi,

This error occured when lens is prevented from properly extending or retracting.when pressure is applied to the lens or the area surrounding the lens while handling the camera.
Avoid applying pressure to the lens and surrounding area:
  • Do not touch Lens while shooting.
  • Make sure the camera is off before the camera is placed back in the case.
If you cannot clear the error code by turning the camera off and then on again then your device need to be repaired.

Rating the solution is highly appriciated...Good Luck.

Feb 28, 2010 | Canon 8.2-Megapixel Digital Camera Lens

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

Lens is stuck


Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ...

Here's some things that you can do to try to correct it. They only seem to work for less than 50% of the lens errors, but if the camera is out of warranty, they're worth a try:
http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

Sep 10, 2009 | Cameras

1 Answer

Lens error, restart camera.How can I restart the camera IXUS 60?


Hi,

Since the camera is locked after lens error, you will restart camera removing batteries.

If this does not help, then you are in one of the following conditions:

Lens error and lens does not retract.
Try helping lens gently back in while you turn off the camera holding the button at same time.

Lens error and lens do not extend.
Restart the camera , and try gently tapping the camera back with the palm of your hand whilst restarting camera at same time.

If that does not help, then one part on the camera lens assembly is broken or out of place, or dirt inside lens mechanism caused the fault.

The lens must be disassembled by a technician to fix the problem.

If the problem is not fixed swapping batteries and resetting, then the camera must be taken apart and tested by a technician.

Here you can get a quote on repair: Repair



Aug 22, 2009 | Canon Cameras

1 Answer

What cameras does this lens fit?


Vivitar made this lens with several different mounts, including mounts for Canon and Minolta cameras. Your best bet is to take the lens with you to a large camera store. The staff at the store may be able to simply identify which mount your lens has, or they can try the lens on different camera bodies to see which it fits.

Dec 18, 2008 | Cameras

1 Answer

Lens stops functioning


Have you tried this same lens with other cameras? Do you have another camera body you can try? or perhaps a friend with a Canon EOS Camera? Also try the following please: Remove the lens. Look at the lens mount contacts, take a Cotton swap with some rubbing Alchol & clean the contacts very well, both on the lens and the camera body. Is your camera reading the lens aperture range correctly (at least most of the time)? Also since you replaced the PCB on the lens, isn't it under warranty? Let me know if this works. Thank you, AJ.

May 23, 2007 | Canon Zoom Telephoto EF 100-400mm...

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