I get an error 99 message (turn power switch to off then on again or re-install battery)
I have a Canon XTI and a Quantaray 70-300mm lens. When ever I try to use the lens, I get an error 99 message (turn power switch to off then on again or re-install battery). I spoke with a camera guy at my local Hunt Photo, who suggested cleaning the contacts on the lens with a pencil eraser. I tried it. It did not work. HELP!!!
Re: I get an error 99 message (turn power switch to off...
I posted a problem, and have found a partial solution, at least if you get the error while shooting. After cycling power to clear the error, try lowering your ISO setting - it may need to be lowered a bunch, so keep trying. Mine cleared up when I went from ISO-800 to ISO-200. My testing is limited, so this may be only a partial fix.
Speculation (based on working with electronic sensor arrays): I believe the camera is indeed trying to protect the sensor. ISO basically sets the sensitivity of the sensor to light. The camera probably calculates the expected sensor signal before each shot, regardless of mode. Sensor signal is a function of ISO (sensitivity), shutter speed (integration time), aperture, and light input. It has influence over shutter and aperture, but none over ISO. It likely gets to a point where it can't solve the equation, so shuts down and gives an error, as user-error is not the only reason it could fail to solve the equation. Going to M would likely exacerbate the problem. I hope this helps.
Re: I get an error 99 message (turn power switch to off...
I have a similar problem. The contacts seem temperamental for the XSI on this lens. But strangely, I've found as long as you aren't focusing in on a bright image, it works just fine. The only thing I can figure is with a 300mm magnification is that it doesn't want to burn out the chip so it's a built-in protection of some sorts. Try cleaning both the contacts on the lens and the camera body gently. Does the problem happen as soon as you turn on the camera, or mid shot?
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Since you already have a Quantaray lens, you should know that Quantaray makes lenses with a variety of mounts. A lens with a Pentax mount won't fit a Canon camera, for example. As long as you get the lens with a Canon mount it will fit the XTi just fine.
Is the lens just bought new? If not, it likely is 'chipped' for the Canon AF film cameras. I do not recall if Quantaray rechips their lenses. I believe Sigma does theirs, but not sure about Q~. If you got the paperwork with the lens, contact a repair center or Quantaray. Contact US1 Photo at 877-300-8070. they are a Quantaray dealer. Ask for the number to the distributor, warranty repair facility and for the number of the quantaray home office. One of them should help you get the right lens.
Error 99 is one irritant in many Canon SLRs. In general, it means there is some problem with the contacts. So try cleaning the electrical contacts of the body and lens with a pencil eraser.Please take care to hold the camera upside down while doing this so that the residue does not fall inside. Also take out the battery and clean the contacts. Now re-attach everything and try taking the image. Also check if your lens has an aperture ring and aperture lock. If so, lock the aperture ring at the minimum aperture. If these do not solve the problem, try updating the firmware to the latest one.
error 99 can most times be remedied by taking a standard pencil eraser and carefully cleaning the gold contacts at the back of the lens and the gold maching contacts in the lens opening of the camera... BE CAREFUL not to let eraser crumbs into your camera... keep it clean... reset the battery and give it a whirl.... did it solve the 99 issue? for the CF it refers to the cf card... here's what I've found on this: Canon reports that this error code may appear on your digital
camera’s LCD (liquid-crystal display) when there is an error reading
from or writing to the inserted CF (CompactFlash) card. This error code
occurs most often after a user has tried to eject a CF card before the
camera has finished writing data to the card.Solution: Canon
suggests that you first try to use a different CF card. If you do not
see the error message when you use the new CF card, the first card is
Before you take the next step, drag the files
from the CF card to a location on your hard drive to back up the files.
Next, you can use Windows’ ScanDisk utility to check the CF card for
errors. If you use a Mac, you can use Disk Utility (in
Applications\Utilities\) in OS X.
If ScanDisk or Disk Utility
fails to resolve the CF card problem, insert the CF card in your camera
again. Then format the CF card. On most Canon cameras, you can do this
by pressing the Menu button, selecting the Format tab, highlighting
Format, selecting Format, and choosing Yes. Make sure you have backed
up the data on the card before you do this. Formatting the card will
delete the images from the card. After you format the card in your
camera, use ScanDisk or Disk Utility to check the CF card again. If you
still encounter errors while using ScanDisk or Disk Utility, you should
discard the CF card because it is damaged.
If the error still
occurs after following the steps above, your camera may need repair.
Contact Canon’s technical support for further assistance.
I have the same problem. So far I've contacted Sigma (I believe this is the company that manufacturers the Quantaray lens for Ritz) and they requested I send them a photo of the lens. I just googled sigma lens to find sigma support. I will update you all with any response I may get.
On most lenses the way to test if your old lens works on a cannon digital to set the camera to AV then set the iris to the small setting ie F16/F22 then use the stopdown button.
Things that might happen
1 The lens will close down OK
2 The error 99 will show,will need are rechip if avaliable
3 Nothing happens, will need a rechip
Q.Why will it work inside but not outside.
A. Inside the camera needs light so the iris is full open, outside the lens needs to close down and if not compatible it is unable to close down. will need a rechip
I have been researching this problem and found there's nothing you can really do. Appararently, the quantaray, being an older lens, wasn't made to work with this latest era of cameras. Though it might work perfectly with your older camera, its technology is outdated as it relates to digital cameras and can't mesh with the latest and greatest. By the way, most of my questions were answered on the Digital Camera Resource page (www.dcresource.com
I have a 100-300mm Quantaray lense and have the exact same issue. I spoke to Canon about this and they suggested cleaning the contacts. That helps for 1 picture. You would have to remove the lense and rub the contacts between each picture. Not a good plan. They suggested the Quantaray may have a fix or repair for the lense and to contact them. However they have no listed 800 number nor any website. only other suggestion is to contact a camera shop and see if they can service the lense. Only other option is to replace it.