Question about Sigma 28-300mm f/3.5-6.3 Macro for Nikon-D AF

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Lens lock It has stopped working, when I slide the lock forward, the stop appears to engage, but with a slight twist on the lens it disengages. Any ideas.

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When I connect my AF Sigma lens to my Canon DSLR camera, the viewer reads MF while in AF mode.

What's the cause of this?

Posted on Aug 26, 2008

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Posted on Jan 02, 2017

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52mm lens stuck on body,,how do you unstick it?


Normally, these lenses do not 'unscrew'. When you push the red button, it releases the lens catch and then you rotate the lens a short ways counterclockwise, then gently pull forward on the lens while holding the body of the camera and the two units separate. It is possible you have gotten some dirt into the lens latching mechanism. Try returning the lens to the locked position, press the red button, rotate the lens to where it stops and then returning the lens to the locked position and repeat several times if the lens does not lift out when you hit the movement stop. This may allow you to get past the dirt. Otherwise, take it to a camera shop, particularly if the camera is still under Canon warranty.

Dec 04, 2014 | Canon EOS 550D Rebel T2i Digital Camera

1 Answer

How to open genie 1/2 hp garage opener for light bulb


Set a step ladder under the power head of the garage door opener so you can reach the power cord and the lens cover safely.
Climb the ladder and pull the power cord from the outlet in the ceiling. Press the two lens tabs in to disengage the lens from the power head. The lens tabs are below the opener rail on the upper corners of the lens. Pull the lens cover straight off of the power head.
Unscrew the light bulb from the light socket. Use a new 60 watt bulb to replace the defective bulb. Do not use a short neck bulb. Screw the new bulb into the light socket just as you would a regular lamp socket.
Slide the lens cover back over the front of the power head. Push the lens cover in until the locking tabs engage the top corners of the lens cover.
Plug the Genie garage door opener power cord back into the ceiling electrical outlet.
home light

May 28, 2012 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

My Nikon Coolpix s9100 (bought about a fortnight ago) freezes when I turn it on. The lens comes out and it makes a clicking sound but nothing appears in the viewer and it appears to be locked up. The...


I have the same problem and found someone on Amazon with this suggestion... "What I discovered is that the mechanical lens zoom assembly is binding and the lens zoom was not stopping where the software expected it to. A slight twist of the lens assembly would unfreeze the camera."

I twisted my lens assembly when this happened, and it worked. I was able to continue to zoom and take a picture. It's still not ideal and I want it fixed, but it works temporarily.

Aug 13, 2011 | Cameras

1 Answer

I have a slightly older version of this lens. It worked perfectly with my pentax KX the first time I attached the lens and powered on. I unattached and reattached the lens, and it no longer functions. The...


Okay did you happen to take the lens off without shutting the camera off? If so that's not a good idea. First thing I'd advise is to clean the lens contacts using a new red pencil eraser, lightly polish the gold contacts and clean the surface off with a lens cloth not a tissue. Next I'm not totally sure of the Pentax camera you have but does the camera control both the shutter speed and aperture? If so then the lens needs to be placed in the I'm going to say stopped down position before locking it to the camera, now that might be wrong so if it doesn't work then shut the camera off remove the lens and open the aperture to its wides point reinstall the lens and turn the camera on and try that. Sorry it's been a year since I used a Pentax and I'm going on memory. Another thing some older lenses although they fit the mount and appear to work may not actually work (depending on how old the 28-200 is) Some older technology in third party lenses can't keep up with the "new" cameras. In short the new camera may be able to look back in technology but the lens may not have the "chip" to look forward and the two are not compatible. I'm not saying this is the case here because you said it worked I'm thinking dirty contacts or the aperture ring was not set correctly.

Jan 20, 2011 | Tamron AF 28-200mm f/3.8-5.6 LD Aspherical...

2 Answers

Lens error on vivitar x327 , lens wont go in


Hello
You especially might consider this if the lens barrel appears obviously damaged, bent, or crooked such as from a fall. Try forcing the lens. More people have reported success with this method than with any of the other methods. HOWEVER, there's obviously some potential for damaging your camera by using this method. Variations include gently pulling, rotating, and/or twisting the lens barrel while hitting the power button. Attempt to straighten or align the barrel if it's crooked or twisted. Another variation includes looking for uneven gaps around the lens barrel, and then pushing on the side of the lens barrel that has the largest gap (note pushing the lens barrel all the way in is NOT recommended as it may become stuck there). While doing any of the above, listen for a click that indicates that the lens barrel guide pins may have reseated in their guide slots. If you hear this click, immediately stop and try the camera.
hope it helps, if not take camera to the technician, if so
DO RATE THE SOLUTION
Good Luck

Jan 10, 2011 | Vivitar ViviCam X327 Digital Camera

1 Answer

How do you change the parking lights


Signal and Marker Lights
REMOVAL & INSTALLATION
Front Turn Signal and Parking Lights
1991-96 MODELS

  1. Remove the lens upper retaining screw and the fender side retaining screw.
  2. Slide the lens assembly forward until access to the rear is possible.
  3. If necessary, unplug the bulb electrical connection.
  4. Turn the bulb socket assembly counterclockwise and remove it from the lens.
  5. Depress and twist the bulb approximately 1?8 turn
    counterclockwise, then remove it from the socket.





    Fig. 1: Remove the lens upper retaining screw and the fender
    side retaining screw
    90986p79.jpg






    Fig. 2: If necessary, unplug the bulb's electrical connection
    90986p90.jpg






    Fig. 3: Turn the bulb socket assembly counterclockwise and remove it from the lens 90986p91.jpg






    Fig. 4: Remove the bulb from the socket
    90986p92.jpg

    To install:

  6. Align the bulb's locating pins, then install the bulb in the socket.
  7. Attach the socket to the lens and turn it clockwise to engage it.
  8. If removed, attach the bulb electrical connection.
  9. Place the lens into position, then tighten the fender side and upper
    retaining screws.

Oct 31, 2010 | 1991 Mercury Tracer

1 Answer

Laser lens won't stop feeding forward


The cause of this could be the problem of the lens and the easiest thing you can do in any attempt to fix your PlayStation 2 Slimeline console To remove the slide tray you have to remove the two small screws, ... Locate the lens (the circular glass part) and very gently rub the cotton bud around the lens .... a laser power meter to measure what is going on when you turn the pots.   

Apr 15, 2010 | Sony PlayStation 2 Slimline Console

1 Answer

The camera would stop working all of a sudden, put away and take out it worked, now Err showing


Remove the lens and check the contacts. Reattach the lens and give it a light twist to make sure the contacts are engaged.

Dec 20, 2009 | Nikon D90 Digital Camera with 18-105mm...

3 Answers

I'm a new user of the D90 (and digital in general), and on my first major trip with it I had problem with the shutter not working. I would take some images, put the camera down without turning it off and...


George,

Since you didn't say if this was a "new camera & lens" or if it was a "new to you" camera and lens, or which *exact* lens you have, there are a couple of ways this can work.

Nikon lists the following remedy for error code "F--" :

Begin quote:

The F-- error message is indicating the camera and lens are not communicating. Either the lens is not designed with electronic contacts, or maybe the lens is not connected fully and clicked in to place. Make sure if the lens is a CPU lens, that it is completely connected onto the cameras bayonet lens mount. You will hear a "click" when the lens is locked in place.

End quote

The above info was obtained from:

http://support.nikontech.com/app/answers/detail/a_id/2605/session/L3NpZC9WOFJNTy1Kag%3D%3D/kw/lens%20not%20installed%20properly/p/19%2C544/c/184/r_id/116678/sno/3


If the lens has the electrical contacts to communicate with the camera: Try removing & reinstalling the lens. Twist the lens until the dot on the lens is aligned with the dot on the camera body to remove the lens. Reverse the procedure to install on the camera body. Gently twist the lens until it stops and is fully engaged in the camera opening.

When the lens is off, try to keep the camera opening faced downward to limit the amount of dust and dirt that can enter the body and collect of the sensor. Likewise, protect the exposed lens with the supplied cover - but carefully inspect the contacts on the edge of the lens for dirt etc. that may be interfering with the correct operation of the lens, before covering. The same inspection should be done on the camera body's mating surfaces.

If the trouble persists, bring the camera to a reputable shop or contact Nikon Support below for warranty or factory help based on your location, below:

http://imaging.nikon.com/products/imaging/support/index.htm

Oct 09, 2009 | Nikon D90 Digital Camera with 18-105mm...

1 Answer

Camedia 5-60 pictures are black


Are you sure nothing is blocking the lens on the front? there is a slide that slides open and you can see the lens right? Is the camera in manual mode or auto? if its on manual flip it to auto to test. Point the lens at the light, does the display change? If you bang on the camera does it work? there are some connection problems with some sensors and they can flake out after a while and stop working. Sometimes banging the camera or twisting the case it will flicker or start working again. If it does the sensor is the problem. The screen could be cracked also. Do you have the tv cables with it? try to hook it to the tv and see if you get a picture.

Apr 06, 2006 | Olympus Camedia C-350 Digital Camera

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