Having problems with your Canon Digital Cameras ?

Very poor definition on unsharpened converted raw files to tif format,on my Canon 1DS MKII through Image browser.A number of tests have been carried out under controlled conditions.Both location and studio at an ISO of 100,using a tripod and various Canon L series optics.The results when looking at 100% magnification are poor in both manual and auto focus modes,as indeed are the images when printed out at A3.All the files have been shot without any post sharpening this has been set at zero on t


Answers :

Hi mike,

I would like you to visit this site that i hope will be helpful.
www.dphotojournal.com/canon-ef-24-105mm-f4l-is-usm/

If you are interested in post processing,
i recommend you to use post sharpening tool DIGITAL PRIMER.
www.lib.umd.edu/dcr/publications/DigitalImagingPrimer.pdf

Thanx mike,
Thanx for using fixya,
waiting for your comments........

Do you have the manuals.if yes what does it says.
Repair Help & Product Troubleshooting for Canon Digital Cameras

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Very poor definition on unsharpened converted raw files to tif format,on my Canon 1DS MKII through Image browser.A number of tests have been carried out under controlled conditions.Both location and studio at an ISO of 100,using a tripod and various Canon L series optics.The results when looking at 100% magnification are poor in both manual and auto focus modes,as indeed are the images when printed out at A3.All the files have been shot without any post sharpening this has been set at zero on t


Hi mike,I would like you to visit this site that i hope will be helpful.www.dphotojournal.com/canon-ef-24-105mm-f4l-is-usm/ ... Canon Digital Cameras

I have the Canon EOS - older model - and when using with my Canon Zoom Lens 70-300 mm it does not work on auto focus but will with manual focus.


Clean the contacts on the camera body and lens where they meet with a cotton swab lightly dampened with rubbing alcohol. ... Canon Rebel XT / EOS 350D Digital Camera

I have a Canon Digital Rebel XT camera using a 75-300mm telephoto lens. My problem with the lens is that at times it is hard to adjust the focus either manually or automatically with the camera. I hear something rattling around inside the lens and at times the lens will not auto-focus and I have to remove the lens and manually twist it to get it back to some normal operation. Is this fixable or do I need a new lens?


It sounds like the lens has been dropped or knocked and is misaligned in the guides.Repair against new lewns is a difficult one as prices vary. I would perhaps consider replacing it with a used one. Before you do borrow a similar lens from some ... Canon Digital Cameras

Focus problem Hi all. I have a Canon 300D Rebel camera and I find there is a major problem with the focusing - most pictures come out too soft whether I'm on Auto or Manual. I've got a job on Monday and intend to use that camera so I wonder if anyone can help get the best out of the focus. Thanks in advance.


Suggestion: \015\0121. camera probably has a sharpness setting.\015\012\015\0122. avoid wide open, F/5.6 is the sweet spot on most lenses. ... Canon Digital Rebel / EOS-300D Digital Camera with EF-S 18-55mm Lens

I have a canon rebel xsi that is not taking pictures on auto focus. It will take pictures on manual focus, but they're blurry. I changed my lens to a bigger one to see if it was the lens or camera, and it's the camera. I had the same problem with the other lens. I've tried cleaning it & turning the lens focus ring but is still doing it. Anyone know how to fix this problem?


Try cleaning the lens contacts on the camera body and on the lens.This maybe the problem, it is not making contact with the lens zoom motor. ... Digital Cameras

Can' focus I received a canon power shot A530 without a instruction manual. where can I get a free one.My current question is for a close up shot, I don't know how to get it to focus, even when on auto focus. Dee


Here ya go:\015\012http://www.usa.canon.com/consumer/ ... Canon PowerShot A530 Digital Camera

I have a Canon Rebel XS that I just purchased a month ago. I have taken very good care of it. I took several pictures yesterday, but when I turned it in this morning it wouldn't take a picture. It flashes rapidly, but won't focus. The only setting I ever use is the auto focus setting, and I've checked to make sure it was still set, but still it won't take a picture. I am out of town and I don't have my manual, so I can't troubleshot on my own. :( Can you help?


Clear all camera and custom function settinf from menu option four and click clear setting and clear both setting and try out ... Canon EOS Digital Rebel XS / 1000D IS Digital Camera

Need Help, the auto focus of my canon 400D won't work.(I can still shot with manual focus)


Try cleaning the contacts on the camera body and the lens where they meet with a cotton swab lightly dampened with rubbing alcohol. ... Canon EOS 400D / Rebel XTi Digital Camera with 18-55mm Lens

My canon rebel won't let me take pictures when I want to! On manual, it just makes a sound (similar to when the auto focus is focusing) and on automatic, the flash just flashes repeatedly and it says "busy". What's wrong with my camera??


... Canon EOS Digital Rebel XS / 1000D IS Digital Camera

Good Morning I went hiking in broad daylight this past weekend and the autofocus would not work. I have a Canon 40D with a TAmron 18-270. I used av, tv, p, m and auto and I could not autofocus the camera. All I could do is to switch to manual focus to get it to work. When the lens was set to AF all you could is hear is it racking back and forth tying to focus. VERY FRUSTRATING.. Any ideas of what it may be or a setting I might have set accidentally. Any help is appreciated. Bob


Did you set a strange auto-focus point? ... Canon EOS 40D Digital Camera

My canon 500d auto focus is not responding but the manual focus is working?


... Canon EOS 500D EOS Rebel T1i Digital Camera with 1855mm and 55250mm lenses

My Canon EOS Digital Rebel camera seems to have trouble auto-focusing. It sounds like it's trying to do it, but often won't so I have to do manual focusing. Any thoughts on why that might be?


Try cleaning the contacts on the camera body and lens where they meet with a cotton swab lightly dampened with rubbing alcohol. ... Canon Rebel XT / EOS 350D Digital Camera

I can't seem to get my autofocus to work on my new Canon T1. The mode dial is switched to full auto, the fous mode switch is on AF, and the Image Stabilizer switch is in the "on" position. When I depress the shutter halfway, I get flash indication, some digital numbers, but no change in focus, no beeping, even though it is on and the focus confirmation light does not illuminate. I've searched through the manual to see what I am doing wrong, but can find nothing. Any help you can offer would


Hope I can help with some input to your problem. Let me suggest please that you switch the "mode" dial to "P" for program, check your ISO (I personally shoot ISO 100) and set it for a speed ISO 400 or lower. Most DSLR's use contrast to focus so a mir ... Canon EOS Digital Rebel XTI Digital Camera

My 7 year old canon eos rebel XT digital will not take pictures in auto mode..no focus points light up..when in manual, it will take a picture but it's always very blurred..


The most likely thing is that you have motion blur in your prints from \015\012using too slow a shutter speed. Other possible problems are too wide an\015\012 aperture, bad focus, or something in your workflow that's horking the \015\012images. ... Canon Rebel XT / EOS 350D Digital Camera

Auto focus not working on my Canon Rebel XS. I can't even take a picture. Manual mode works fine.


... Canon EOS Rebel XSi Digital Camera

I have a Canon EOS Rebel XTi. It will not take a picture when in the auto focus mode. It will in the manual mode.


... Digital Cameras

How do i auto focus while on manual mode? - Canon EOS-5D Digital Camera


That's the idea of "manual" mode...you do it yourself. When you manually focus, the camera will still beep when you reach the correct focus. ... Canon EOS-5D Digital Camera

My canon 30D will not shoot in any mode (total automatic, portrait, landscape, macro etc.) while on the auto focus setting on the lens. All the modes work while the lens is in manual mode though.


... Canon EOS 30D Body Only Digital Camera

Focus There is one problem that I have with this camera - Auto Focus in low lighting and it has really limited manual focus. Outdoors this camera is outstanding, I haven't found any pitfalls outdoors yet. 10x optical zoom plus 2.5" LCD WOW. Although the LCD is littly choppy, but I don't care about that, pictures turn out really gooood. Anyways back to Auto Focus problem. Do any of you have the same problem? Or this is my ability problem? That limited manual focus really bugs me! I'd like to hear


I have similar problem. So I use manual focus (1m,3m,inf) & move camera for finest pix. On AF, the adjustment seem to go past sharpest image point but settles on a fuzzier setting. Is there any place that can make a repair? ... Toshiba PDR-M700 Digital Camera

Focus Problem Dear folks, I just bought a (new) Canon A75, and it doesn't seem to focus. At all. Even on manual focus, not only can I not get it to focus properly, the focus doesn't change at all. When on AF, it doesn't beep like the manual says it should, and the yellow light blinks, as it's supposed to when there's a focus issue. The focus assist light is working. Can anybody think of anything I should try? The manual is of no help. This is my first digital camera, so I'm not ruling out the po


I'm not sure on the problem, but one thing to check on the front of the A75 it also uses an IR beam to set focus. It's a little circular dot under the flash on the right side. It will light up red when in use to project the IR beam. Make sure you ... Canon PowerShot A75 Digital Camera

I have a new k20D I have had it less than a week and I can't seem to get the auto focus to work. I can manually focus but when on auto I get the red square for a second and then it goes off it does not move the lens into focus and it does not beep. I am wondering if I have a setting wrong but I reviewed the manual and I don't think I am missing something but maybe I am.


Does your lens have a ring on it with various lens openings marked on it such as 3.5, 22 etc.? If so, it should also have a "A" setting which is where you should have it. Also, I'm assuming your lens is an auto-focus lens. ... Pentax K20D Digital Camera

My Canon Rebel XS will not auto focus correctly. It sounds like it is trying to focus, but only flashes and will not focus or take the picture.


Those quick fast flashes usually mean the camera is trying to find contrast to take the photo but it can't. The scene might be to dark and the camera can not set it's focus and there for cannot take a picture. Move the camera slightly from left to ri ... Canon Rebel XS / Eos 1000D Digital Camera with EF-S 18-55mm f& EF 75-300mm f Lens

Hi, I've a Sigma 28-105mm aspherical 3.5-5.6 lens. Auto focus does not engage. I can hear the motor trying, but the ring does not turn. When I switch to manual focus, I can turn the ring to focus manually, but I still hear the motor trying to use autofocus. Additionally, sometimes the shutter will not fire in manual focus while the motor is still searching. I've cleaned the contacts, but no joy. I suspect a faulty switch, but that doesn't completely explain the autofocus not engaging. I am


Well, I think you have at least one problem pinpointed, in that I suspect the focusing ring is jammed, and cannot rotate with the electromagnet signals. The other problem might be a faulty auto/manual switch. Of course, check for oxidation and e ... Digital Cameras

My D80 will not auto focus with any of my 3 Nikkor lenses. It will fire on auto focus when you manually focus while in that auto focus mode.


Check that your settings is put to AF in the D80 body and the lens that you are using. ... Nikon D80 Digital Camera with 18-135mm Lens

Nikon d50 r07, r10 and will not shoot on any setting other than manual but still gives r07 message, i have read that this is a message about buffer, but i have yet to find other advice about other problems. On auto focus it will not auto focus, won't shoot on anything except manual, doesn't allow me to set aperture and light meter never shows.


... Nikon D50 Digital Camera with 18-55mm and 55-200mm Lenses
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