Macro Ring Flash 1200AF

[Trigger Happy]

hi guys, does anyone have a copy of the KM macro ring flash manual? i've a set without the booklet, got it really cheap off ebay. works wonderfully, but i've to set only one flash on (of 4) when close up and at f22 otherwise pic is overexposed. or does anyone have any idea on the proper usage of this macro flash? thanks!

[Del_CtrlnoAlt]

Originally Posted by Trigger Happy hi guys, does anyone have a copy of the KM macro ring flash manual? i've a set without the booklet, got it really cheap off ebay. works wonderfully, but i've to set only one flash on (of 4) when close up and at f22 otherwise pic is overexposed. or does anyone have any idea on the proper usage of this macro flash? thanks!

which controller are u using, if its the older controller, then it will only work manually, IIRC, then with the new TTL controller, its easier.

[Trigger Happy]

it may be the older one, as the contacts are 3-pin, and the fs1100 adapter is needed to mount it on the 5D. i would assume ttl still works, as i can get diff shutter speed readings with the flash on and off. in any case, how would i control this so that pics at larger appertures don't get overblown even at iso 100? or is f22 the way to go for flash macro photography?

[Del_CtrlnoAlt]

Originally Posted by Trigger Happy it may be the older one, as the contacts are 3-pin, and the fs1100 adapter is needed to mount it on the 5D. i would assume ttl still works, as i can get diff shutter speed readings with the flash on and off. in any case, how would i control this so that pics at larger appertures don't get overblown even at iso 100? or is f22 the way to go for flash macro photography?

thats the older one, TTL not working for 5D or 7D with that controller.

anyway of course u get different shutter speed when u on & off your flash, one assume with flash its 1/60 or watever u set and the other using metering to get the exp.

another thing is, the ring flash since in macro use, produce very bright light at near distance, and in macro the DOF is shallower at f2.8 than on normal focusing distance, so normally in macro, its f8 and above to get a clearer view.

if u wan maybe during the next SOS i bring the new controller down let u test.

[Trigger Happy]

coool.... thanks! look forward to that. in the meantime i'll try not to blind too many insects with the flash.

btw there's a slide-selector on the back of the controller, is that purely for showing diff iso readings (can't figure it out anyway) or is it supposed to control the flash intensity? didn't notice a diff with its usage...

[Del_CtrlnoAlt]

Originally Posted by Trigger Happy coool.... thanks! look forward to that. in the meantime i'll try not to blind too many insects with the flash. btw there's a slide-selector on the back of the controller, is that purely for showing diff iso readings (can't figure it out anyway) or is it supposed to control the flash intensity? didn't notice a diff with its usage...

i have tat but never use... hehehe...

[sulhan]

Originally Posted by Del_CtrlnoAlt i have tat but never use... hehehe...

Hieee..

FYI...thats the guide number scale. Its a guide to let you know what lens what apertures to use with the ISO - dont also forget that distance to the subject for macro at 1:1 ...1:2...and so on will result in different light power. Being too close like for 100mm macro at 1:1 magnification, the limit i think is to use f22 or more. Any larger aperture will result n blown out.

rgds.
Sulhan

[Del_CtrlnoAlt]

Originally Posted by sulhan Hieee.. FYI...thats the guide number scale. Its a guide to let you know what lens what apertures to use with the ISO - dont also forget that distance to the subject for macro at 1:1 ...1:2...and so on will result in different light power. Being too close like for 100mm macro at 1:1 magnification, the limit i think is to use f22 or more. Any larger aperture will result n blown out. rgds. Sulhan

after 22 like not much option liao... hehee... think its like after 22, 28, then 32?

anyway, can use ND filter to cut down the light anot? hehehe

[sulhan]

Yes..bro....

In fact thats how you can cut the light out form your flash by using ND filters.

[Trigger Happy]

sounds a little silly though, getting a macro flash to provide proper illumination of macro subjects, then needing a ND filter to cut down the light.

and to think that the recommendation is to use f/2.8 macro lenses with it... sigh... looks like my sigma 70-300 with macro might be a better option. at f/22 i can imagine that just about everything in the bg would be in focus. will try it this weekend in broad daylight