My camera lense will not focus automatically or manually.
Lense is a Canon EF 70-300mm f/4-5.6 IS USM; Camera Canon Rebel EOS
Is there a battery or something inside the lense itself? My other lense will focus w/ no problem. I did drop my case a while back and it acted up briefly at that time, but then was doing fine. Now, nothing.
Re: My camera lense will not focus automatically or...
There is no battery in the lens. The lens receives power from the camera. Whether or not the lens is getting power, though, you should be able to focus manually.
When you say you can't focus manually, do you mean that you can't turn the focusing ring on the lens, or that when you turn the ring the image does not come into focus?
If you decide the lens needs to be repaired, I recommend sending it to Canon. You can go to their website (canonusa.com if you're in the US), click on support, and follow the links.
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Yes, it's suitable for 35mm EOS mount Canons and all digital models. If the digital SLR has an APS-C sensor then the image will be cropped and will give the same viewing angles as a 112-480mm on a 35mm camera.
'Error 99' indicates some problem with
the AF contacts. This is a common error in Canon lenses. It could
indicate a very simple problem like dirty contacts or a much serious
one like the breakage of USM cable. As a first step, you can try
cleaning the lens and body contacts (the metal contacts between the
lens and body) using a pencil eraser. Be careful to hold the body
facing down so that no dust falls inside. After cleaning both the
lens and the body contacts, re-attach the lens and try shooting. If
the AF does not work still, you need to take the lens to an
authorized service center.
There is a minimal focusing distance for all lenses. If you move closer to the subject than that distance then the camera won't focus on it. Check you lens manual for minimal focusing distance. It is 11 inches for Canon EF-S 18-55mm f/3.5-5.6 USM, for example.
If your AF motor is hunting then the lens probably needs to be looked at. I wouldn't recommend this as something to do at home so you will need to either find a repair shop if it is out of warranty or return it to Canon if it is in warranty.
By the way are these RAW images? What type of lense are you actually using, check this
EOS-1Ds Mark III EOS-1D Mark III EOS-1D Mark II N EOS-1Ds Mark II EOS-1D Mark II EOS-1Ds EOS-1D EOS 5D EOS 40D EOS 30D EOS DIGITAL REBEL XSi/EOS 450D EOS DIGITAL REBEL XTi/EOS 400D DIGITAL Compatible Lenses EF 14mm f/2.8L USM EF 28-70mm f/2.8L USM EF 14mm f/2.8L II USM EF 28-135mm f/3.5-5.6 IS USM EF 20mm f/2.8 USM EF 28-200mm f/3.5-5.6 EF 24mm f/1.4L USM EF 28-200mm f/3.5-5.6 USM EF 28mm f/1.8 USM EF 28-300mm f/3.5-5.6L IS USM EF 35mm f/1.4L USM EF 70-200mm f/2.8L USM EF 50mm f/1.2L USM EF 70-200mm f/4L USM EF 50mm f/1.4 USM EF 70-200mm f/2.8L IS USM EF 85mm f/1.2L USM EF 70-200mm f/4L IS USM EF 85mm f/1.2L II USM EF 100-400mm f/4.5-5.6L IS USM EF 100mm f/2.8 Macro USM EF-S 60mm f/2.8 Macro USM EF 135mm f/2L USM EF-S 10-22mm f/3.5-4.5 USM EF 180mm f/3.5L Macro USM EF-S 17-55mm f/2.8 IS USM EF 200mm f/2.8L USM EF-S 17-85mm f/4-5.6 USM EF 200mm f/2.8L II USM EF-S 18-55mm f/3.5-5.6 EF 16-35mm f/2.8L USM EF-S 18-55mm f/3.5-5.6 II EF 16-35mm f/2.8L II USM EF-S 18-55mm f/3.5-5.6 USM EF 17-35mm f/2.8L USM EF-S 18-55mm f/3.5-5.6 II USM EF 17-40mm f/4L USM EF-S 18-55mm f/3.5-5.6 IS EF 24-70mm f/2.8L USM EF-S 55-250mm f/4-5.6 IS EF 24-105mm f/4L IS USM -
Talked to canon support, they suggested to send lense in for review/repair. They said it could be the motor, I think it was a gear problem based on the noises and jerkiness of the focusing action while in manual focus (manual focus gave out as well). Cost TBD - "would definately be more than $50. I shopped around and elected to buy a new lense rather than try to hassle with the repair, shipping, insurance, and the wait, etc. Besides, I have a deadline that I need the lense for, so repair at Canon really became a non-option. I think the cost would've been pretty much the same in the end as the new lense, since this wasn't one of the costlier of lenses to begin with.
I would only suggest you might clean the metal contacts on the inside rim of the lens....just be very careful what you use....a pencil eraser is good but make sure you clean away any shavings that might get into the camera...