Compatibility AF 500 FTZ and "old" SLR series "A"

Hello,

Some time ago I had evoked here on the PDML, the question of compatibility between flash AF 500 FTZ and the cases old generation mainly Super A and Program A. Not having had a precise opinion, on the PDML several people made it clear that signal TTL was different on the recent cases type MZ from that of "A", I decided to make a series of tests.
1) With Super A and one 85 mm I put the flash in TTL and I took 5 pictures with 4 - 5,6 - 8 - 11 and 16 on a subject placed at 1,5 of the flash :

ALL THE PHOTOGRAPHS ARE PERFECTLY EXPOSED!

2) Still under the same conditions I put the flash in manual mode at aperture 1:8 and I took 6 pictures at power 1/1 1/2 1/4 1/8 1/16 and 1/32 :

ALL THE PHOTOGRAPHS ARE PERFECTLY EXPOSED!

Incredible not? Still the proof that at Pentax they are really the kings of the upward compatibility and downward!

(Please excuse my bad and poor English)

Jean Francois

you didn't mention if you used slide or print film. reason I mention it is print film can handle up to 4-5 stops over-exposure and still yeild a good print. check the negs with a loup and get back to us?