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Canon eos t1i,500d, kiss x3 iso sensitivity

Wednesday, August 5, 2009


ISO Sensitivity Options

The Canon T1i offers regular ISO equivalents of 100, 200, 400, 800, 1,600, and 3,200, with the option to use fractional settings in 1/3-EV increments (100, 125, 160...). The Canon T1i also offers two additional high-range ISO settings enabled when ISO?Expansion is turned on: ISO 6,400 and "H", which takes the camera to 12,800 equivalent. An Auto ISO mode adjusts the ISO as the camera thinks necessary, from 100 to 1,600. An automatic exposure bracketing feature lets you set the Canon T1i's total exposure variation (across three shots) at anywhere from +/- one-third or one-half EV, all the way up to +/- 2 EV. The nice part is that the automatic variation is centered around whatever level of manual exposure compensation you have dialed in. Thus, you could manually set a positive exposure compensation of 0.7 EV, and then have the camera give you a variation of +/- 2/3 EV around that point.



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posted by DSLR MASTER, 8:10 AM

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