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PostPosted: Tue Aug 13, 2013 8:00 am 
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Joined: Fri Jun 22, 2012 8:42 am
Posts: 218
Location: Almere, The Netherlands
Hi guys,

Since I know a lot of you use the 100-400 as your long lens I was wondering about using IS on a tripod. I have bought a Manfrotto 055XB Classic Tripod and a gimbal head, and am planning on using this setup in combination with my 7D and my 100-400 for wildlife photography. The thing is: I can't seem to figure out whether or not to turn IS off. There seems to be a lot of discussion online on this, and to be honest when I put the 100-400 on the tripod with the gimbal head I found the image through the viewfinder to be quite wobbly.

Just in case: this wasn't because of the tripod which was very stable at that time. I had the gimbal head loosened so I could turn in every direction. I know that tightening the knobs would improve sharpness if I have a still subject, but if I don't have time to do that what kind of shutter times can I use safely with the knobs loosened?

So in summary I would like the following questions answered:

1. Turn IS on or off on a tripod + gimbal head with the 7D + 100-400?
-> If IS needs to be turned on, then on which mode?

2. What shutter times will be safe to use for razor sharp images when using the tripod and head with loosened knobs?

3. What shutter times will be safe to use for razor sharp images when using the tripod and head with tightened knobs?

I have read things about people using tripods and getting sharp results at 1/60th with the knobs tightened, and a professional photographer once said during a workshop that he gets sharp images with shutter times up to as low as 1/100th with the knobs loosened, but I would love some first hand experience from you guys, since you all use the same lens.

Thanks and kind regards,

Mike

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Cameras: Canon EOS 7D, Canon EOS 40D
Lenses: Canon EF 17-40/4 L USM, Canon EF-S 60/2.8 Macro USM, Canon EF 70-200/2.8 L USM, Canon EF 100-400/4.5-5.6 L IS USM
Want list: Canon EOS 5D Mark III, Canon EF 24-105/4 L IS USM, Canon EF 100/2.8 Macro L IS USM, Canon EF 500/4 L IS USM
Flickr: http://www.flickr.com/photos/mtkoopmans/
Website: http://www.mtkfotografie.nl


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PostPosted: Tue Aug 13, 2013 4:28 pm 
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Joined: Sun May 25, 2008 12:48 pm
Posts: 7999
Location: UK
Never mind what everyone else claims to get, try it yourself and find out what you can get. Never mind tripods, I've hand held sharp shots to 1/60. Just don't ask me to get a 100% hit rate :) Definitely consider if the subject may move, and if shooting over long distances outdoors, heat haze will quickly degrade shots too.

Personally, I'd leave IS on unless shooting with a fixed, static tripod arrangement. Also I'd leave it on standard mode, not panning mode, unless you're panning!

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Wed Aug 14, 2013 8:44 am 
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Joined: Tue Jan 06, 2009 9:22 pm
Posts: 1307
Location: Speyer (Germany)
I'd only switch IS off for shots with longer shutter speeds like 5 seconds or something like that. Then the IS can move the picture while you are taking the shot.

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Canon EOS 500D + Canon EOS 5D Mark III + Canon EOS 33v
Canon EF 28-80mm 3.5-5.6 USM + EF 24-105mm 4L IS USM + EF 100-400mm 4.5-5.6L IS USM + EF 50mm 1.8 II + EF 100mm 2.8L Macro IS USM + Sigma 12-24mm 4.5-5.6 EX DG HSM + Canon Speedlite 580 EX II + Nissin Speedlite Di 466


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PostPosted: Wed Aug 14, 2013 10:38 am 
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Joined: Fri Jun 22, 2012 8:42 am
Posts: 218
Location: Almere, The Netherlands
Alright, I will go and test then. Keeping IS on seems to be helpful, since with the knobs loosened the camera can still move in every direction. Maybe even mode 2, because I use it for flying birds too. But if anyone else has some useful experiences to add here then please do :).

_________________
Cameras: Canon EOS 7D, Canon EOS 40D
Lenses: Canon EF 17-40/4 L USM, Canon EF-S 60/2.8 Macro USM, Canon EF 70-200/2.8 L USM, Canon EF 100-400/4.5-5.6 L IS USM
Want list: Canon EOS 5D Mark III, Canon EF 24-105/4 L IS USM, Canon EF 100/2.8 Macro L IS USM, Canon EF 500/4 L IS USM
Flickr: http://www.flickr.com/photos/mtkoopmans/
Website: http://www.mtkfotografie.nl


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