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  #21  
Old 06-01-10, 10:10 PM
matt wilson matt wilson is offline
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That method of mirror lock up does not use live view and is quicker.Also it doesn't eat battery power.What happens is you compose the pic .Press shutter button once and mirror flips up (everything blacks out )press shutterr again and pic is taken.

Theory is that the mirror flipping up can be enough to introduce vibration.
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  #22  
Old 07-01-10, 11:00 AM
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Forseti Forseti is offline
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Strange - I read so much about mirror lock-up, and whilst I don't doubt that in certain circumstances there are advantages to be had, it's not something that I have ever used and neither anticipate using.

My approach is usually something along these lines. Is it a static subject allowing me to concentrate more on what DOF (Depth of Field) I wish to achieve. For me this is most often the case and I use AV (Aperture Priority) or manual on my cameras more than any other mode. If for example I set an aperture of f/5.6 I then check to see what the camera is indicating as a suitable shutter speed. If the camera returns a shutter speed of 1/125 seconds and my chosen focal length is 200mm then I know that this won't be sufficient - the general rule being that the shutter speed should be greater than 1 over the focal length. In the previous example this would be a minimum of 1/200 sec. Of course IS (Image Stabilisation) can make a difference here that is why it is only a general rule. Assuming a non IS lens is used, if I still wish to maintain an aperture of f/5.6 at 200mm despite the camera returning a corresponding shutter speed of 1/125 sec then I will up the ISO in stages (say 100 to 200) until the camera indicates a shutter speed greater than 1/200 sec.

With good camera holding technique and a good understanding of exposure it is my view that mirror lock-up should be considered a feature that should be used under certain circumstances but should not be considered the norm in an attempt to compensate for bad camera technique/knowledge. Only my view of course but several have commented on the sharpness of a selection of my images requesting lenses used etc whereas the reality is that I have concentrated my efforts more on good camera holding techniques, seldom use a tripod and as previously stated, have never used mirror lock-up.
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Last edited by Forseti; 07-01-10 at 11:04 AM.
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  #23  
Old 07-01-10, 03:15 PM
matt wilson matt wilson is offline
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Forsetti I have to agree with you .I tend to use a similar approach myself.Only time I actually used mirror lock was when doing a night shot of the moon at 400mm.tripod mounted.if I recall corectly I kept iso low to avoid noise and used around 125th at f8 at it did make a difference.
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  #24  
Old 08-01-10, 08:23 PM
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Cutter Cutter is offline
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good camera holding techniques

Quote:
Originally Posted by Forseti View Post
Strange - I read so much about mirror lock-up, and whilst I don't doubt that in certain circumstances there are advantages to be had, it's not something that I have ever used and neither anticipate using.

My approach is usually something along these lines. Is it a static subject allowing me to concentrate more on what DOF (Depth of Field) I wish to achieve. For me this is most often the case and I use AV (Aperture Priority) or manual on my cameras more than any other mode. If for example I set an aperture of f/5.6 I then check to see what the camera is indicating as a suitable shutter speed. If the camera returns a shutter speed of 1/125 seconds and my chosen focal length is 200mm then I know that this won't be sufficient - the general rule being that the shutter speed should be greater than 1 over the focal length. In the previous example this would be a minimum of 1/200 sec. Of course IS (Image Stabilisation) can make a difference here that is why it is only a general rule. Assuming a non IS lens is used, if I still wish to maintain an aperture of f/5.6 at 200mm despite the camera returning a corresponding shutter speed of 1/125 sec then I will up the ISO in stages (say 100 to 200) until the camera indicates a shutter speed greater than 1/200 sec.

With good camera holding technique and a good understanding of exposure it is my view that mirror lock-up should be considered a feature that should be used under certain circumstances but should not be considered the norm in an attempt to compensate for bad camera technique/knowledge. Only my view of course but several have commented on the sharpness of a selection of my images requesting lenses used etc whereas the reality is that I have concentrated my efforts more on good camera holding techniques, seldom use a tripod and as previously stated, have never used mirror lock-up.
Anybody know where to get information on good camera holding techniques???????????????
PLEASE
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  #25  
Old 08-01-10, 10:13 PM
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Forseti Forseti is offline
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Several different approaches all having merits depending on the circumstances and camera/lens combination used..

http://www.youtube.com/watch?v=EDsx3-FWfwk - short video

http://digital-photography-school.co...d-camera-shake - text and pictures
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  #26  
Old 09-01-10, 12:30 AM
matt wilson matt wilson is offline
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Cuttr
.You are looking at very basic things .such as making yourself as stable as possible ,elbows in ,breathe in as you take pic ,feet firmly planted ,support a long lens with left hand and gently squeeze shutter with right.Kneel down if it helps .
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  #27  
Old 09-01-10, 04:26 PM
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KeithT KeithT is offline
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There are a couple of points that may be of help: turn off IS if you have it. It won't work if the camera is supported in any other way than hand-held, but the motor will still operate causing vibration inside the lens if on a tripod. The other thing is to research you lens' optimum aperture and set it at that. If a lens is shut down to its narrowest aperture diffraction might occur and that could be giving you blur problems too.

If you are a Canon user this article may be of some use to you, but it will be interesting reading to all photographers no matter whos lenses you use: http://www.usa.canon.com/dlc/control...articleID=1386
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Last edited by KeithT; 09-01-10 at 04:46 PM.
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