Question about Canon EOS 7D Digital Camera

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Will not focus well no matter what lense I try or what lense I use.

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Check to see that the camera and lens are not set to manual. if so its defective. Send it back.

Posted on Sep 07, 2010

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1 Answer

Nikkor


Could be as simple as dirty electrical contacts on the lens, camera or both. Try cleaning them with a pencil eraser. Also, there is a focusing motor in the lens and circuitry in the camera. Do other auto focus lenses work on your camera? If yes, it is your lens. If no, you have a camera problem. In either case, I would take it to the Nikon repair center in your error or to a qualified camera repair man. You should not try to disassemble the lens or camera yourself under any circumstances. Reassembly is not a matter of simply reversing the disassembly process.

Mar 04, 2014 | Nikon Nikkor AF-S 28-70mm f/2.8D IF-ED...

1 Answer

Autofocus problem with 70-300mm is usm


Replace the broken ribbon cable in the lens

Sep 23, 2012 | Canon EF 70-300mm f/4-5.6 IS USM Lens

1 Answer

Autofocus problem with 70-300mm is usm


Probably needs a new ribbon cable in the lens. This flexible cable maintains the contact as the lens is zoomed in and out. If it is still under warranty take it back to B&H for a simple repair.

Sep 23, 2012 | Canon EF 70-300mm f/4-5.6 IS USM Lens

1 Answer

I own a Nikon D5000 and am experiencing issues with the 55x200 lens. When trying to take a picture (on auto mode) of an item that is too close, I am hearing a squeaky noise (like the noise made my a VCR...


The 55-200mm lens does not focus closer than 1.1 meters (3.6 feet). If the subject is too close, then the autofocus tries and fails to focus or keeps trying (and squeaking). Either way, you won't be able to take a picture. In manual focus, you can take a picture but it will be out of focus and blurry.

Every lens has a minimum focus distance, closer than which it will not focus. Some lenses focus closer than others. It's a matter of design; making lenses focus closer makes them larger, heavier, and more expensive.

If you want to take close-ups, you have several options. You can buy close-up adapters that fit onto the front of a lens. You can buy a special close-up lens ("macro" or "micro" lens). You can buy extension tubes to fit between the camera and a lens.

Jul 18, 2011 | Cameras

1 Answer

Question from a newbie! I just got a Telestar ds 2130at and i have taken off the lens cover (round cover approx 5'' dia.) and with the 25 eye piece i can not see anything thru the lense,no matter how...


Put the eyepiece with the largest number written on it into the focuser-- try again. You may need to make several turns of the focuser knob to get into focus.

Aug 16, 2010 | Meade TeleStar DS-2114ATSA Telescope

1 Answer

How to adjust nikon lens focus


When you say a shift focus issue, what exactly is the issue? Will it not focus to infinity? Is it never in focus, no matter what? Is it an AF lense that is searching for focus?

Either way, it really requires an experienced tech in all but the last case. There are cases where AF simply doesn't work well. You can have it checked, but its likely nothing.

The other issues, it's likely either a misaligned element, an element that's come uncemented, etc. You may be able to look through the lense and see if you can see any separation in the elements, though sometimes it's not terribly evident.

Unfortunately, often unless it's a simple issue lenses are more expensive to open up and do major repairs to than they are to replace. If you'd really like it looked at, contact Nikon for a service center, a local reputable shop, or contact KEH Camera in Atlanta, GA.

Apr 05, 2010 | Photography

1 Answer

My lens quit auto focusing


It's probably broke then. Clean the contacts to the camera and try again. If it still don't work you can probably be sure it is likely to be a bit faulty. Check the camera has auto focus mode enabled if appropriate.

Jul 06, 2008 | Sigma 28-300mm f/3.5-6.3 Macro for Nikon-D...

1 Answer

I cant see clearly in my telescope not matter how much i adjust the focus lines


If it is a focused image but hazy or foggy, you have to clean the optics in your telescope. If you have a focus problem but a clean image, then you are having travel limitations of your focus equipment usually rack and pinion. Wearing eyeglasses can also effect that mechanical problem and so does other added components like "Barlow Lenses" that are used to double or triple eyepiece magnifications. You might also have the lenses in the optical system not in the right order or direction when it was taken apart.

Apr 17, 2008 | Optics

1 Answer

Can't tell when Rebel xt is focused


So the problem is that it always looks blurry?
If so, look at the little dial that is coming out of the viewfinder. It corrects the viewfinder for people with bad eyesight, kind of like built in glasses. make sure the white marks are lined up.

Dec 17, 2007 | Canon Rebel XT / EOS 350D Digital Camera

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