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General Photography Technique Discussion on General Photography Technique |
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#1
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Rob ----------------------------------------------------- Solar powered Box Brownie Mk2 Captain Sunshine, to be such a man as he, and walk so pure between the earth and the sea. WPF Gallery Birdforum Gallery Last edited by robski; 18-02-08 at 17:10. |
#2
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1/13 second with IS on the Panasonic:
http://farm1.static.flickr.com/165/4...48ee3894_b.jpg Not perfectly sharp but most movement is in the subjects, and I'd not have even attempted it with my old SLR and 210mm tamaron zoom. |
#3
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Great link Rob.
unfortunately, this bit could be a little misleading.... Quote:
Many people will have experienced 35mm film SLR verses the C-APS sized DSLR. Others will have experienced larger formats than 35mm vs C-APS. Even forgetting that larger than 35mm format cameras tend to be larger and heavier than most popular APS-C crop DSLRs, so promoting hand strain/shakes etc....with a given angle ie what you want to include in your shot , the reverse of the above is actually true. To try and make this easier to understand, it's easier to think of the time verses physical distance the shutter blades have to move with any given camera format. I've frequently had people say to me that they can handhold their APS-C 1.6x crop DSLR at anything approaching 1/8th second with a standard zoom lens, and still get sharp enough pictures.....OK, so try doing this with a 35mm SLR. You'll find the success rate to be much lower! Alternatively, try handholding a 2x crop Olympus DSLR...wow!...you can get away with murder! LOL....some of the 'bridge' hybrid cameras have even smaller sensors, so even lower is possible Those lucky enough to also own a 'full frame' FX crop DSLR can try the same against their 'C-APS' DX crop DSLR. In an effort to explain further; we have 3x cameras 1x 35mm or full frame camera with a 50mm lens 1x APS-C 1.6x crop camera with a 30mm lens 1x 2x crop camera with a 25mm lens All three have approx' same angle of view (for arguments sake..ok, the ratio is different etc etc) Set them all at the same low shutter speed Normally on average the results from a full frame camera are going to show more blurr than the 1.6x crop. On average the 2x crop will have the best 'sharpness rate'. That said, you can't go shooting at a couple of seconds with a minature camera....likewise a large format plate camera doesn't need a millionth of a second to get a blurr free image. Shutter speed x sharpness. There's probably a success rate curve there somewhere!...it's not going to be linear at the extremes. DX/APS-C has a massive advantage getting sharp shots at slow speeds with a given image size/ angle required vs 35mm/full frame....another reason why I've been liking my digi Nikons verses my old film cameras so much ![]() If you don't beleive me try it out ![]() Does this make sense, or is this totally confusing?? ![]()
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primarily using Nikon film and digi kit, and some micro 4/3rds gear for experimenting with old lenses Last edited by Joe; 18-02-08 at 15:31. |
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So at what speed can you hand hold with a 200-300mm zoom and still get a reasonable image?
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#5
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http://www.worldphotographyforum.com...s%20Yelvertoft It should be noted that this camera and lens has no AS/IS/VR etc. but it is an exceptionally small, light body and lens combination, and Debbi does seem to have a certain knack, there's no way I can get the same results without using AS but she just reels them off. All I can suggest is you get the camera/lens combo you're interested in using and peel off numerous test shots, critically analyse the results and decide for yourself how slow you can go with an acceptable rate of keepers. There will be an element of luck involved, I have had good results at 1/2 second with a 55mm lens fitted and anti-shake switched on, but this was luck and not repeatable. Also, subject movement and deliberate techniques such as panning will have an effect. |
#6
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I was always led to believe that the bigger and heavier the camera was, then a slower shutter speed was useable. This was due to inertia.
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#7
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For a surprisingly long time with good technique! This shot was taken with 1DsII and sigma 28-70 f2.8, 1/4 sec exposure, f32 whilst perched on a boulder in mid-stream. I braced against my knees, shot on the exhale etc, but there was no other camera support.
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#8
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Also as previuosly posted, the effects of format size is a big factor which is often overlooked, which is the point I was trying to make. I agree with Duncan, in that there really are no hard and fast rules re shutter speeds verse sharp shots. Depends on the result you're after but I've taken a few that I preferred with blur than without. The features of IS/supersteady shot/VR are also sometimes misunderstood. More than once I've heard of customers bringing cameras back where Is technology has been used "but look at this print...the moving car is still blurred"...IS works to minimise the risk of blur occuring due to movement of photographer/ person holding the camera whilst shutter is open. It would be so much easier if IS worked to slow the whole world down! we'd all be out taking pictures of the previuosly impossible, using really low ISO for quality and exposures of several seconds ![]() ![]() PS, great shot Gordon!
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primarily using Nikon film and digi kit, and some micro 4/3rds gear for experimenting with old lenses Last edited by Joe; 19-02-08 at 23:05. |
#9
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For information, Debbi recommends holding your breath at the moment of exposure.
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#10
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Yes, that's what I meant, but after breathing out. Holding an inhaled breath does keep your trunk stiffer, but breathing in also increases your pulse rate, and hence the slight shake in your hands that goes with it. There is also an increase in muscle tension, that can lead to tremor. Holding an exhaled breath, which I prefer, slows the pulse, reducing that shake, and also helps relax the muscles of your upper body, reducing any tension tremor.
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