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Photo Forum / Digital Photography / DSLR Cameras / January 2007Canon Rebel XT
If anyone else owns this camera can you suggest which focusing mode is more accurate; multi or single zone? > If anyone else owns this camera can you suggest which focusing mode is more > accurate; multi or single zone? Depends entirely on what you are trying to do. A little more information would be helpful.  SignatureYou need only reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. -- Charles A. Beard > If anyone else owns this camera can you suggest which focusing mode is more > accurate; multi or single zone? Yes. SignatureUnless you love someone, nothing else makes any sense. -- e.e. cummings > If anyone else owns this camera can you suggest which focusing mode is > more accurate; multi or single zone? Generally, single using the center point. Focus with half-press, recompose if necessary and then continue the press to fire the shutter. Works best most of the time (but there are, of course, exceptions). The advantage is that you control which part of the scene is most important for focusing. Most if not all my shots seem to focus about a foot before the subject. I thought that maybe a focus mode could correct this or the AF mode setting , AIservo might be predicting the subject to be moving toward the camera. >> If anyone else owns this camera can you suggest which focusing mode is >> more accurate; multi or single zone? [quoted text clipped - 4 lines] > advantage is that you control which part of the scene is most important > for focusing. > Most if not all my shots seem to focus about a foot before the subject. I > thought that maybe a focus mode could correct this or the AF mode setting > , AIservo might be predicting the subject to be moving toward the camera. Run some test shots using the center focus point only ... no AIservo. It could be a defective lens or one that needs calibration. Have you tried other lenses? > If anyone else owns this camera can you suggest which focusing mode > is more accurate; multi or single zone? Sort of like asking which taste best red wine or hot dogs. If one was better, you would only get one. They each have their strong points. I suggest that if you have to ask the question leave it set to multi until you understand why there is a single. Note: The fact that you asked indicates you are interested and want to learn. That's good. Read the manual, I believe it has some information on the two. Then experiment with it, but for now when you are just taking photos, use multi as it will get it close more often. Single takes more effort, but can be more accurate under some conditions. SignatureJoseph Meehan Dia 's Muire duit Most if not all my shots seem to focus about a foot before the subject. I thought that maybe a focus mode could correct this or the AF mode setting , AIservo might be predicting the subject to be moving toward the camera. > Sort of like asking which taste best red wine or hot dogs. > [quoted text clipped - 7 lines] > photos, use multi as it will get it close more often. Single takes more > effort, but can be more accurate under some conditions. I have tried the kit lens and also the Canon 75-300MM and both seem to have about the same focal point just before the subject. It's so marginal that I'm not sure whether to bring it to Canon, 1 1/2 hours from me, or try ever other possibility first. They will keep it for a week or two before I get it back. > Most if not all my shots seem to focus about a foot before the subject. I > thought that maybe a focus mode could correct this or the AF mode setting [quoted text clipped - 12 lines] >> taking photos, use multi as it will get it close more often. Single >> takes more effort, but can be more accurate under some conditions. > I have tried the kit lens and also the Canon 75-300MM and both seem > to have about the same focal point just before the subject. It's so > marginal that I'm not sure whether to bring it to Canon, 1 1/2 hours > from me, or try ever other possibility first. They will keep it for a > week or two before I get it back. A foot is huge unless you're stopped down to max ap. I vote for trying to get it fixed. SignaturePhil I dropped it off at Canon today. >> I have tried the kit lens and also the Canon 75-300MM and both seem >> to have about the same focal point just before the subject. It's so [quoted text clipped - 4 lines] > A foot is huge unless you're stopped down to max ap. I vote for trying to > get it fixed. >> If anyone else owns this camera can you suggest which focusing mode >> is more accurate; multi or single zone? > > Sort of like asking which taste best red wine or hot dogs. Red wine, obviously (well, for me anyway). > If one was better, you would only get one. They each have their strong >points. I suggest that if you have to ask the question leave it set to [quoted text clipped - 5 lines] >photos, use multi as it will get it close more often. Single takes more >effort, but can be more accurate under some conditions. The manual is very terse and gives practically no advice on what to use when. This is not the user's fault. IMHO always use one focus point. You need to be in Creative Mode to do this. The center one works fine most of the time (assuming you recompose as mentioned by Charles), but sometimes it's best to select one of the other points. If you leave set as default or work in Basic Mode, all 7 points are activated and the camera will use the nearest one. Very often that is not where you will want the sharpest focus. You will get unexpected results instead of control. This proves that camera manufacturers will give you more than one option even if you only need one. KS >If anyone else owns this camera can you suggest which focusing mode is more >accurate; multi or single zone? This thread may be useful http://photography-on-the.net/forum/showthread.php?t=32810 That link was very helpful. Thanks all for the help. >>If anyone else owns this camera can you suggest which focusing mode is >>more [quoted text clipped - 3 lines] > > http://photography-on-the.net/forum/showthread.php?t=32810 : If anyone else owns this camera can you suggest which focusing mode is more : accurate; multi or single zone? ------------------------------------ Multi point focus is for blind photographers. The camera just uses the closest object to focus. Single point focus is for sighted Photographers who can actually see what it is they want to focus on. I'm not sure about your camera but most of the halfway decent AF cameras have either a mini joystick or other thumb controlled means of deciding on which of the multi-points is actually used to focus (and maybe expose) on. SignatureAustralian Wedding Photography between Kempsy, NSW and Sunshine Coast. http://www.photosbydouglas.com Digital photos enlarged and printed on Canvas http://canvas.photosbydouglas.com There is a way to select which focus point to use or use all. I've found that my camera is focusing before the subject by using the yardstick test so I'll drop it off for recalibration. Luckily it's still under warrantee. Thanks for all your help. > : If anyone else owns this camera can you suggest which focusing mode is > more [quoted text clipped - 9 lines] > have either a mini joystick or other thumb controlled means of deciding on > which of the multi-points is actually used to focus (and maybe expose) on. |
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