Question about Quantaray 70300mm f456 AF DI for Nikon

1 Answer

Slippery Lens Barrel Between 135mm & 210mm setting.

Lens works perfectly.The problem I have is when you set the the lens barrel between 135mm & 210mm the lens barrel will tend to slide on it's own towards 135mm pointed upward & 210mm pointed downward. Lens works perfectly.The problem I have is when you set the the lens barrel between 135mm & 210mm the lens barrel will tend to slide on it's own towards 135mm pointed upward & 210mm pointed downward.

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  • Quantaray Master
  • 4,047 Answers

Some lenses do have zoom creep.

Posted on Jul 09, 2017

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Posted on Jan 02, 2017

  • 102366 Answers

SOURCE: My question is about a Quantaray 75mm-300mm

Slide a piece of paper partway under the ring (make sure you leave enough hanging out so you can remove it later) and see if that tightens the action some.

Another low-tech approach is to push the ring to expose the inner barrel, then attack one or more pieces of Scotch tape or masking tape.

Posted on Feb 05, 2010

Tri3mast
  • 747 Answers

SOURCE: I have a quantaray 2.8

Right now you are on the "Free" side of the list. I'm an independent not associated with any of the camera, lens or accessory manufacturers I'm a Freelance Photographer that uses this equipment to make my living. Repairs to a lens like this if it were in Canada would run about $120.00 but I'd be asking Ritz cameras first if there were a warranty. If the lens is working for you and you are satisfied with its performance then It's up to you if there is no warranty and it's a pay to repair deal. What I would be asking myself is why is this lens barrel sticking and my answer would be dirt. Lint and oils from our hands will enter the lens barrel and cause all sorts of problems. Also if you use this lens in the field there is sand and other environmental nasty things that get in between the two barrels. I see a lot of questions about these Quantaray lenses, never used one so can't really voice an opinion except that non of the lenses I've owned over the past 30 years have ever stuck because dirt has entered the lens.

Posted on Jan 24, 2011

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1 Answer

What is the L switch for ?


That is the ZOOM LOCK SWITCH
This stops the zoom extending when you carry the lens.
Set it at 24 mm setting to stop the lens barrels from rotating and extending.
Unset it to free the lens again.

Aug 07, 2014 | Tamron Sp 24-135mm F/3.5-5.6 Macro Ad If...

Tip

Lens Error


Hello

This is a tip explaining how we can try to resolve a lens error.
Firstly you will need to understand what exactly the lens error is, and how it came to happen.

The most common cause for a Lens error:

  • Misaligned Lens rings
  • Sand and grid wedged in between the lens and the barrel.
  • Dropping the camera
  • Ran down battery
Here is the Fix:

  • Batteries
Firstly you can try removing the batteries and replacing it with a new set of fully charge ones(2500mah).

  • Memory card
If the batteries ran down while you were taking photos with the lens extended, you might also get this error. Remove the the memory card and replace the batteries with a fresh recharged set. Try to power on the unit with the fresh set of batteries while the memory card is removed.

  • USB cable
Connect your camera to your computer using your USB DATA cable which came with the camera. Once the camera gets power in this mode, the screen should stay off, hence, supplying the lens with more power to push or pull out/in.

  • Barrel Guide Pins
Place the camera on a sturdy table with the lens pointing to the ceiling. With a fresh set of batteries installed(Do this without a memory card) hold down the shutter button while you power on the unit.

  • Compressed air and Vacuum
Now, you can either use a compressed air canister to blow around the lens area. This will result in the sand or dust particles to be blown out of the area between the lens and the barrel. Or, you can use a vacuum and and carefully place the nozzle around the lens to **** out the particles.

The following Fixes will be done at own risk and can even further damage you camera.

  • Tap your camera with the palm of your hand a couple of times to displace the lens into the original position, or to dislodge particles in the lens barrel.
  • Try gently pushing/pulling/wiggling the lens while powering up the unit.
I hope this can help you to resolve this problem, and send you well on your way to experience that Legendary Kodak moment.

Kind regards
Andrea

on Sep 22, 2010 | Cameras

1 Answer

After taken photos the image out of focus


On the front of the camera body, below the lens release button you should find a two position switch labeled "AF" & "M" This is the "Auto Focus - Manual" selector switch. Make sure the selector is set to "AF" for auto focusing.

Your lens may have a similar focus selector switch on its barrel. There are two types of switches used - depending on the lens. The first is labeled "M/A" and "M" The "M/A" position indicates it is in "Auto Focus" mode with a "Manual" focus over ride capability. You can simply twist the focus ring to change the focus to a point other than that chosen by the camera's auto focus system. The "M" position is Manual Focus mode. No focusing operations will be performed by the D80 auto focus system - focusing must be done by the photographer.

The second type has "A" & "M" positions. These represent Auto and Manual focus. The difference between this type switch and the "A/M & "M" switch is that when in "A", the camera will no allow the focus to be changed manually. There will be opposition to twisting the focus ring in the position. Forcing it will likely result in damage. The selector switch must be changed to "M" to change the focus.

If either switch is set to manual, the auto focus system will be disabled, so it is very important to have them both set to "A" or "A/M".

I hope this helps. Please rate my reply - thanks!

Jan 04, 2011 | Nikon D80 Digital Camera with 18-135mm...

1 Answer

The lens on my canon powershot A480 will not retract, I have tried to restart the camera but this does not work, I have a 'lens error' restart camera' message but this does not help


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 01, 2011 | Canon Powershot A480 - Silver Digital...

1 Answer

Hi, i have the Sigma 70-200mm for Canon EF and the manual focus don't work. The HSM works fine and focuses perfect, but if you choose MF, you can't rotate the focus-ring. Many greetings from Germany! Kai


Hi, not sure if you still have this issue. I have just decided to look into it again, as I had a lot of focus problems with my Sigma 70-200mm HSM lens. Since there is no Sigma support here in Beijing, I took a look - and fixed it.

Here is what I did: On the front of the lens barrel is the rubberised focus ring. This can be removed (gently ply it away from the barrel by sticking a flat bit (or plastic letter opener) between the barrel and the rubber grip. It will come not entirely loose, so you need to work your way around the lens. Keep doing that until you moved it about half way forward. At this point two fixing screws become accessible on the barrel below.

In my case, one of the screws had come loose and that blocked the focus ring from turning, as the screw was blocking rotation in the access hole on the barrel.

Hope this helps others. Simple to fix, if you know how.

Nov 26, 2010 | Sigma APO 70-200mm f/2.8 EX DG HSM Lens

1 Answer

Fauly aperture ring on mamiya/sekor 135mm f2.8 m42 lens


Does the aperture work when you turn the ring and push the aperture pin on the mount in? The lens should close down to the set aperture when you do this. If it does, then atleast the lens is useable.
What is missing is the detent for the click stops. This is a spring loaded ball bearing that 'clicks' into notches inside the ring. If this is broken or missing, finding a spring the right size might be a challenge, the ball bearing less so. To remove the ring and base, unscrew 3 screws coinciding with the 3 notches in the back plate, visible when you set the ring to f8. the back should lift off easily. don't lose the screws. The ball bearing, if it is still there, should protrude from a small hole in the lens barrel in line with the f stop index mark on the lens. Good luck.
P.S. The above is based on how my 200mm is designed so I'm making some assumptions that the 135mm is put together much the same.

Mar 27, 2009 | Cameras

1 Answer

HELP Sigma 24-60MM wide Angle


The helicoid or the barrel thread in the lens may be jammed. The lens will have to be serviced. You should take it back for warranty service.

As for myself, I aways buy origional manufacture lenses and accessorites for my cameras.


Jerry G.


Jun 06, 2008 | Nikon D80 Digital Camera with 18-135mm...

2 Answers

Remove Lens Cap


We had the same problem with our FZ8. My wife had dropped it and it must've knocked the lens barrel sensor out of whack. I searched google and found a suggestion saying this message occurs when the lens barrel is out of alignment. (http://www.fixya.com/support/t186189-some_reason_camera_keeps_comming_up)

With the lens barrel out, I gently pushed the barrel up, down, left, right and put a little pressure in. Somehow, the barrel worked itself into the right position! The camera works perfectly know. Its worth a shot to save $$$. Be gentle!!

Dec 26, 2007 | Panasonic Lumix DMC-FZ7 Digital Camera

5 Answers

For some reason my camera keeps comming up with a "REMOVE LENS CAP AND PRESS > BUTTON" error but the lens cap isn't on the camera :(


it sounds like the lens barrel is out out alignment. Possible the barrel was stuck while it was extended. There is a sensor on the lens barrel asemmbly that must be in the correct position after the camera is turned off. If this doesn't happen then you will get this message..at least this is what I have experienced in my repairs on this camera 

Aug 22, 2007 | Panasonic Lumix DMC-FZ7 Digital Camera

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