jr#8 Goldmember  2,338 posts Joined Aug 2005 Location: NJ More info | Jan 19, 2006 20:44 | #1 HELP! I cant seem to figure this one out. I cant seem to get the focus right. Canon20D, 2.5 sec exp, f5.6, ISO 1600, Tamron 70-300mm Lens, On tripod, Could it be a cheap lens, other images are ok, but aren't tack sharp. Or I noticed that even though auto-focus is on there seems to me a little difference between the viewfinder and the CMOS Chip. Could some please help.  HOSTED PHOTO please log in to view hosted photos in full size. Astrophotography,Fishing
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SWPhotoImaging Goldmember  3,231 posts Joined Nov 2003 Location: No. Calif. More info | Jan 19, 2006 21:59 | #2 What is this that you are trying to focus on? The 20D auto-focus system needs some variation in color/light/texture to create contrast on the object that the active focus point is on. This looks like a very dark shot of what may be small lights or stars, or some other very hard to focus objects. SWPhoto-Imaging
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forrestt Senior Member  464 posts Joined Jan 2006 Location: Western North Carolina More info | Jan 19, 2006 23:15 | #3 Greetings, It looks like the Pleiades. I have found that my auto focus doesn't work on very dark scenes. Try manual focus The Glory of Art is in the pointing to the Greatest Artist of All.
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Jan 20, 2006 06:13 | #4 other images are ok, but aren't tack sharp to me it just seems that the focus is right there. Like it should be. Images look alittle hazy. It looks like the Pleiades. I have found that my auto focus doesn't work on very dark scenes. Try manual focus Thats exactly what it is. It seems like when I manually focus thru the viewfinder the image is still a little oof. I have the viewfinder focused in when I use auto focus. Could that be because of the lens or camera not calibrated right? Astrophotography,Fishing
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