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Apr. 11th, 2008 10:55 pmToday's photo adventures included watching a kite-boarder on Puget Sound in about 10-12 knot winds. This was lots of fun both to watch and to shoot. You'll get pictures tomorrow- they're in the process of uploading right now.
I will give you one image from the day, though, because I love the effect. Technical details: 1/8 second exposure (and handheld at that!) at f40, 75-300mm lens at 210mm focal length.
Technically, this shouldn't have been possible even as a grab-shot- conventional wisdom is that you shouldn't try to handhold a shot at anything slower than the reciprocal of the focal length of the lens. Good stances can make it possible to cheat that by up to a full stop, but this worked thanks to one of the tricks in this camera Sony didn't get from Minolta, but from its own video camera division called Super Steady Shot, which can make it possible to hand-hold something at an additional three stops longer exposure than otherwise. Clarifying, for the non-photo geeks who haven't completely zoned out yet, a full stop of aperture (that'd be the f number) equates to halving the exposure time. Back-tracking, a 210mm focal length shouldn't be handheld slower than 1/200th of a second, but it may be possible to cheat that to 1/100th. Factoring in the up-to-three stops, we're looking at an exposure of around 2/25ths of a second.
I will give you one image from the day, though, because I love the effect. Technical details: 1/8 second exposure (and handheld at that!) at f40, 75-300mm lens at 210mm focal length.
Technically, this shouldn't have been possible even as a grab-shot- conventional wisdom is that you shouldn't try to handhold a shot at anything slower than the reciprocal of the focal length of the lens. Good stances can make it possible to cheat that by up to a full stop, but this worked thanks to one of the tricks in this camera Sony didn't get from Minolta, but from its own video camera division called Super Steady Shot, which can make it possible to hand-hold something at an additional three stops longer exposure than otherwise. Clarifying, for the non-photo geeks who haven't completely zoned out yet, a full stop of aperture (that'd be the f number) equates to halving the exposure time. Back-tracking, a 210mm focal length shouldn't be handheld slower than 1/200th of a second, but it may be possible to cheat that to 1/100th. Factoring in the up-to-three stops, we're looking at an exposure of around 2/25ths of a second.
