newfly5 Senior Member  372 posts Joined Nov 2005 Location: kansas More info | Apr 17, 2007 00:42 | #1 I shot this and wondered if it was user error or my lens soft at 105 any ideas would help. I also left is on while on the tripod did that screw me or is that just a wives tale?  HOSTED PHOTO please log in to view hosted photos in full size. Ben
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GeneMan88 Goldmember  1,108 posts Likes: 18 Joined Jan 2005 Location: Portland, OR U.S.A. More info | Apr 17, 2007 00:48 | #2 What was your shutter speed? Were you using a tripod? Is this the original composition or a crop? With a low shutter speed and zoomed out, your photo may be "soft" from motion by the couple, and or a little camera shake. If this is a crop, it may accentuate the slight softness of the focus. 1D MKI + 1Ds MKI + 5D MKI Kit - EF17-35 f2.8L | EF24-70 f2.8 L | EF 100-400L IS | EF15 f2.8 | EF35L | EF50 f1.4 | EF85 f1.8 | EF135L | 580EX II | 580EX I | 270EX II | G12
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Apr 17, 2007 00:52 | #3 shsutter 1/60 with f4.0 on tripid with manually pushing button iso 800. other pics not at 105 with 800 looked better. Ben
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GeneMan88 Goldmember 1,108 posts Likes: 18 Joined Jan 2005 Location: Portland, OR U.S.A. More info | I don't own nor shoot with this lens, but I think this might be a combo of things that may have made this shot a little soft. The one thing I would say could be the big part of the softness is the low shutter speed... any movement will cause a bit of blur, that may seem like "softness". Oh wait, was your IS on? I think it should be shut off when using a tripod... 1D MKI + 1Ds MKI + 5D MKI Kit - EF17-35 f2.8L | EF24-70 f2.8 L | EF 100-400L IS | EF15 f2.8 | EF35L | EF50 f1.4 | EF85 f1.8 | EF135L | 580EX II | 580EX I | 270EX II | G12
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goatee "nice but dim"  5,239 posts Joined May 2005 Location: North of London, UK More info | Apr 17, 2007 02:20 | #5 Yes, when on a tripod, IS needs to be turned off on the 24-105, otherwise you get a feedback loop, as the IS system ends up trying to correct vibrations that it's causing. D7100, 50mm f/1.8, 18-140mm f/3.5-5.6, 70-300mm f/3.5-5.6 VR, SB800
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dave_bass5 Goldmember  4,329 posts Gallery: 34 photos Best ofs: 1 Likes: 303 Joined Apr 2005 Location: London, centre of the universe More info | Apr 17, 2007 04:51 | #6 goatee wrote in post #3054885  Yes, when on a tripod, IS needs to be turned off on the 24-105, otherwise you get a feedback loop, as the IS system ends up trying to correct vibrations that it's causing. I didnt think it did. I know Canon recomend you turn it off on a tripod but it says to save battery power in the manual (thats from memory though) Dave.
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Pete I was "Prime Mover" many years back....  38,631 posts Likes: 25 Joined Jul 2006 Location: Berkshire, UK More info | Apr 17, 2007 06:13 | #7 Yes, IS will ruin a tripod shot, a feedback lock as goatee said.
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dave_bass5 Goldmember 4,329 posts Gallery: 34 photos Best ofs: 1 Likes: 303 Joined Apr 2005 Location: London, centre of the universe More info | Apr 17, 2007 06:25 | #8 thanks for putting me straight Pete. Dave.
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spitfirejd Goldmember  1,523 posts Likes: 123 Joined Dec 2006 Location: Delaware. More info | Apr 17, 2007 06:31 | #9 Try taking some more shots at 105, especially outdoors in better light. The first copy of the 24-105L I tried at a local camera store was very soft. I ended up buying a used one from a POTN member that I knew was sharp and haven't regretted getting this lens once. It is razor sharp at all focal lengths. Jeff
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tommykjensen Cream of the Crop More info | Apr 17, 2007 06:33 | #10 Pete wrote in post #3055424 Yes, IS will ruin a tripod shot, a feedback lock as goatee said. Unless you have third gen IS (which the 24-105 doesn't), in which case it knows it's on a tripod and stops shaking. Hmm anybody have a link to where the different IS generations is described. Somehow I had in my head that the IS on 24-105 was the newest generation. EDITING OF MY PHOTOS IS NOT ALLOWED
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Pete I was "Prime Mover" many years back.... 38,631 posts Likes: 25 Joined Jul 2006 Location: Berkshire, UK More info | Apr 17, 2007 06:36 | #11 tommykjensen wrote in post #3055466 Hmm anybody have a link to where the different IS generations is described. Somehow I had in my head that the IS on 24-105 was the newest generation. From a link in the FAQ Tripod image stabilization is only available on the following lenses: 300mm f/2.8L IS 400mm f/2.8L IS 500mm f/4L IS 600mm f/4L IS 28-300/3.5-5.6L IS 70-200/2.8L IS 70-300/4.5-5.6 DO IS 400/4 DO IS Taken from https://photography-on-the.net …php?p=1066324&postcount=8
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RenéDamkot Cream of the Crop  39,856 posts Likes: 8 Joined Feb 2005 Location: enschede, netherlands More info | Apr 17, 2007 08:06 | #12 Yeah, but the CPS article linked to from there seems to be older then the 24-105L. "I think the idea of art kills creativity" - Douglas Adams
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fWord Goldmember  2,637 posts Likes: 1 Joined Jan 2006 Location: Melbourne, Australia More info | Following on from the last few posts, yes I thought the 24-105mm could be used on a tripod with the IS on, no problems. Furthermore the TS said that the setup was tripod-mounted but the button was manually pressed. From that I am assuming that no remote release was used. LightWorks Portfolio
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Pete I was "Prime Mover" many years back.... 38,631 posts Likes: 25 Joined Jul 2006 Location: Berkshire, UK More info | Apr 17, 2007 08:22 | #14 The manual for my 24-105 says that IS should be turned off when tripod mounted. This leads me to beleive that it doesn't like tripods.
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dave_bass5 Goldmember 4,329 posts Gallery: 34 photos Best ofs: 1 Likes: 303 Joined Apr 2005 Location: London, centre of the universe More info | Apr 17, 2007 08:24 | #15 This is from the sticky posted above In the first Gen there were lenses with mode 1 & 2 (ie: panning) 100-400mm and 300mm f/4L IS for example... as well as ones that did not have Mode 2. These were the first 75-300mm IS and the 28-135mm IS. 1st Gen IS lenses had to have the IS manually turned off when mounted on a tripod or solid arrangement, as the IS could introduce image anomalies and otherwise unwanted behavior if left on while tripod mounted. At first, all second generation IS lenses have Mode 1 & 2, but recently some of the newer models at the wide ends also lack the Mode 2 function. In addition to faster start up times, and improvements that Canon claims add more "stops" to your hand-hold-ability, The current 2nd generation of IS only adds one set of features in addition to those already found in 1st gen multi mode IS. That feature is Tripod detection and tripod vibration mode. (I don't actually know the name of this,. so that's my own lame term. Canon states this "the IS mechanism automatically goes into a special mode which is designed to detect and correct for mirror slap and shutter movement at slow shutter speeds" ) The basic 2nd generation IS will disable IS when it detects that the lens is mounted solidly such as on a tripod. also remeber that the 70-200 f/4 IS has Third generation IS as its newer than the 24-105L that has 2nd generation. Dave.
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