Hi Everybody,
I finally got my 'puter pieced back together, (un)fortunately I had to
delete the 1200+ PDML messages downloaded. I hope I didn't miss too much....
Need to see if I can get some help in figuring out some scans I have
posted on my webspace. It's a little test I did with a multiple flash setup
on the Super A. I have read somewhere(probably here) that the Super
Program/Super A has a poor TTL flash program. I would appreciate any insight
into the varying exposures by Super Program/Super A owners.
http://personal.mia.bellsouth.net/mia/g/e/genius91/
Equipment was: Super A, SMC 135-F2.5, two 5p hotshoe adaptors, two
Sunpak 444D's with the EXT-10 Extention cord.
Film: TRI-X pulled to 125 (yeah I forgot to set the film speed)
Setup: About 9' away from subject, Flashes on either side angled at
about 30 degrees to point at subject. Flash to left had a White Omni-bounce
and the one to the right had the Sunpak 20mm diffuser. These did not match
well or the left flash was weak (notice shadows). Batteries fresh and both
were firing. Room only lighted by sunlight through a couple of windows in
front and to the right. Left flash was atop a 5p adapter thru 5p cord to 5p
adapter on camera. Right was atop EXT-10 cord to 5p adapter on camera.
I started at F2.5 and worked my way through a roll till F16. I Ran
down(up) from 1/8 to 1/125 with a program exposure as a sort of reference
for each f-stop. Page one is F2.5, two is F8 adn thre is F16. Program mode
reference(no flash) are on the lower right on each page. Apretures not on
line are F4 which matched F2.5 very closely, except for a better reference
exposure and F11 which matched F8 exactly including reference exposure.
Thumbs are small but perfectly representative, click em for a bandwidth
choking jpeg(not recomended).
The F8 and F11(not online) exposures are the best representative of the
subject, except for the program reference. Off by a stop and the F2.5 and
F16 references were better. The F16 being the closest. Hmmm.
The F2.5 and F4(not online) were over exposed. My guess is a metering
failure or bad TTL program with the Super A. Good references, with the F4
being closer to the F16.
The F16 were underexposed. I'm thinking I hit the limits of flash power
with the diffusers attached. Could be the upper(lower) limit on the Super
A's TTL program? Reference exposure was close but a half over.
I can live with The F8 exposures, but I would like some insight on the
varying exposures.
thanks in advance,
Douglas E Harmon
[EMAIL PROTECTED]
http://personal.mia.bellsouth.net/~genius91/
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