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Old Jan 11, 2006, 10:31 AM   #1
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recently got a 5D but when i use flash at night or in dim lit rooms i keep gettting facial expressions with closed eyes even when set on program,with different subjects :?
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Old Jan 11, 2006, 12:54 PM   #2
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try 'red eye reduction' flash mode
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Old Jan 12, 2006, 9:33 PM   #3
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tried that, still getting closed eyes
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Old Jan 13, 2006, 6:25 AM   #4
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Is Autofocus Assist disabled (uses the flash)? If not, you might want to try disabling it (one of the first things I did when I got a 5D). It's very irritating to subjects.

If so (it's already disabled), a small percentage of people are impacted by a preflash in some conditions (I've only found it to be true in dim lighting, with a couple of people).

DSLR models use a preflash (actually, a series of preflashes) to help judge the exposure needed for the main flash (there is no off the film metering with Digital because the sensors are too reflective).

If it's something you can't live with (and a very small percentage of people should be impacted by it), look in to an Auto Thryistor flash solution with multiple aperture ranges (a flash with it's own built in sensor to measure reflected light during the exposure). This arrangement would not require a preflash (but, you'd lose some features, and need to set the flash to match the camera each time you changed aperture or ISO speed).

If you want a similar "fully dedicated" system that understands the camera's settings, while still using it's own sensor to control exposure, check out the Metz 54MZ3 or 54MZ4 using the latest SCA3302M5 foot.

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Old Jan 13, 2006, 11:04 AM   #5
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actually every one complains of the pre flash being too bright, but yet if i disable it the camera wont focus in dim lit situtations,
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Old Jan 13, 2006, 11:45 AM   #6
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dafiryde wrote:
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actually every one complains of the pre flash being too bright, but yet if i disable it the camera wont focus in dim lit situtations,
Well, it depends on how dim it is, what lens you're using, and how much contrast your subject has.

I've got focus lock in lighting so low, I needed 1/4 second shutter speeds at ISO 3200, using a 28mm f/2 shooting at f/2.5 (local tavern with only a some candles in the bar area for lighting). And, I don't use the flash to assist with AF. ;-)

If you're using the kit lens, it's not very bright (maximum aperture is down to f/5.6 by the time you zoom in to 35mm with it). So, try to stay on it's wide end in lower light, focusing on a subject with high contrast.

Keep in mind that a lens with a maximum aperture of f/2.0 is 8 times as bright as one with a maximum aperture of f/5.6 (which is where the kit lens will be at if you zoom in much). So, a brighter lens can help the camera "see" better for focusing.

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Old Jan 18, 2006, 10:01 PM   #7
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sorry for the late reply, was out for a few days . the lens i am using is a minolta 24-105 lens, and have not gotten a chance to use the camera since to try it without the flash assist,

by the way do you know of a lens that is about 24-105 with a max apperature of 2 that will work on the 5D ?
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Old Jan 19, 2006, 7:59 AM   #8
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dafiryde wrote:
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by the way do you know of a lens that is about 24-105 with a max apperature of 2 that will work on the 5D ?
You can't buy a zoom lens with a maximum aperture of f/2 (with the exception of a new lens Olympus came out with for their DSLR models).

The best you can find will be f/2.8, and you're not going to find one with that much focal range (24-105mm) that is f/2.8 from it's widest to longest zoom setting.
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