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10-26-2008, 04:08 AM   #1
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Manual flash

Is there an option on K100d Super to make flash strobe manual without preflash.... and to make power lower like 1/2, 1/4, 1/8. Nikon D40 have this option.

10-26-2008, 05:01 AM   #2
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QuoteOriginally posted by mmm121 Quote
Is there an option on K100d Super to make flash strobe manual without preflash.... and to make power lower like 1/2, 1/4, 1/8.
When you use a lens with aperture ring in the non-A position than you'll always get a full power manual flash without preflash. You cannot reduce the power, allthough in general that is not needed because the popup flash is not very strong.

I suggest buying a cheap external used flash if you get serious about flash photography and are on a budget. Be sure to check the trigger voltage before buying:

Photo Strobe Trigger Voltages
10-26-2008, 06:02 AM   #3
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Good tutorial on checking the voltage is at Measuring the Voltage on a Vivitar 285 or 285HV Flash Head - Life is a Prayer.com

He did a very nice job W/pictures to explain it all.
10-26-2008, 12:33 PM   #4
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Here is exactly what is my problem. I got two photocells for activating external flashes.


when a preflash hits it activates external flashes and the camera shoots with second flash of a popup. on nikons d40 is the same but when you activate manual flash (not TTL) it works great.

10-27-2008, 01:30 AM   #5
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no one has a solution????
10-27-2008, 02:08 AM   #6
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QuoteOriginally posted by mmm121 Quote
no one has a solution????
Stop using the built-in flash?

Get a Pentax AF200T, which you can use in either of two auto levels, or you can manually select four power levels (full, 1/2, 1/4, 1/8). Use it to fire the optical triggers. You should be able to find this flash at an affordable price.
10-27-2008, 03:02 AM   #7
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Thanks Mike .... u deserved a couple of beers
10-27-2008, 09:07 AM   #8
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I can also recommend the Pentax AF280T - I use it on my K200D and am very happy with it. It adds tilt and swivel with makes it much more "usable" than the AF200.

10-27-2008, 09:52 AM   #9
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The AF280T is a very versatile flash. I suggested the AF200T because he seems to be doing strobist (off-camera flash) work and primarily wants something on-camera to trigger the other flashes. The AF200T lets him choose between Guide Numbers of 20, 14, 10, and 7 in a manual setting (full, 1/2, 1/4, and 1/8) making it very easy to use a low power as a trigger and have his off-camera flash units be his main lights. The AF280T is very versatile on it's own but the limited manual settings makes it much less useful for strobist-style work. (Although it does have a manual setting of G.N. 8, which would work fine for a trigger at short ranges).

All that being said, though, the bounce/swivel would be nice for aiming at the optical slave trigger of one of the off-camera units.

His best option, of course, would be to replace the optical slaves with radio triggers. But that can be a bit pricey. Optical slaves are cheap and work fine for limited ranges (usually a distance of half the G.N. of the triggering flash) and in places where no one else is shooting flash. I used one at a performance last year and had the annoying problem of everyone in the audience who had a P&S "borrowing" that flash unit every time they took a shot.
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