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13th January 2008, 17:32 | #1 |
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silly question
probably seems a silly question but here goes - I have taken some photos of my boss's son. My boss is the British kart champion and his son looks like he may follow in his footsteps. i took 2 particular photos and one worked the other was blurred. Camera was in tv mode and shutter speed was 1-50, i was also using a 90-300 lens. Was one blured because of the distance to subject was slightly different in both shots, or because i moved - tripod not used in either
thanks
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13th January 2008, 20:15 | #2 |
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1/50 you would need a steady hand, especially if you were using at 300mm. When using tele-photo it can also magnify the hand shake. Could be out of focus, the type of blur can sometimes show which problem it is.
I could be wrong, but I think TV mode is set at lower shutter-speeds so you don't get cut-off pictures when photo'ing a TV. The sport setting or night setting (if there is one) may give you sharper shots.
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14th January 2008, 21:52 | #3 |
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General rule when using a telephoto lens is, the shutter speed should be equal to, or greater than the focal length of the lens to avoid camera shake, especially hand held!
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16th January 2008, 20:49 | #4 |
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thanks guys
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18th January 2008, 12:25 | #5 |
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There, Sworks, it wasn't a silly question, was it??
Utter gobbledegook to me, though, both question and answer, but then I'm the original point-and-press merchant.......... Malcolm |
18th January 2008, 16:05 | #6 |
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But did it sound impressive Malcolm?
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18th January 2008, 18:44 | #7 |
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21st January 2008, 11:11 | #8 | |
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Quote:
The general rule of thumb is that the shutter speed should be equivalent to the focal length of the lens and on a crop camera the crop multiplier should be applied to avoid camera shake. Your 90-300 on your Canon crop camera should be used with a minimum shutter speed of 300 x 1.6 = 1/500 sec to ensure a good sharp photo when handheld. Good technique, Image Stability and using additional support would all allow you to reduce the shutter speed. A good flash would allow you to increase the shutter speed if there is insufficient ambient light available. |
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22nd January 2008, 07:21 | #9 |
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I did not know that. My Olympus has S or SP instead, I asumed TV was a setting like sport or portrait modes (which I rarely use).
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25th January 2008, 18:29 | #10 |
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I am still not used to all this Digi gear, so its stop the lens down for depth of field or wide open for a soft background for me........still in the steam age down here!
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