One clue here ... "TTL" would stand for "Through The Lens" -- indicating that there is a sensor *in the camera* that would measure the amount of light provided by the flash unit, and turn it off when the proper amount reached ... or should have reached, the film plane.Originally Posted by dbowyer68rr
I would ask one question immediately ... is this "Achiever" (as I have heard of it, a fairly "new" and sophisticated unit) compatible with the internal flash system of your camera? Was it a model specifically dedicated to the Minolta model you have?
I can understand the "TTL" setting - that is fairly universal - but the others are more cryptic. "W" settings could possibly be for use with a (W)inder, where the flash output is lowered to permit fast recycling, a necessity for rapid sequence work.
"TW" - I would guess that could indicate a (T)hyristor setting (controlled by a sensor in the flash unit itself) at a reduced output for a (W)inder.
"Mn" - a guess would be something to do with (M)anual - not controlled by any sensor, but relying on manually set aperture for the exposure.
The rest ... I would be farther and farther out on a limb in guessing.
Where, specifically were all these settings?
Do you have a manual for the flash unit?