Go Andre! Thanks for pursuing macro exposure performance with two 360's. I've done wireless macro hand-holding of one 360 at 25cm from the subject and I get perfect exposures.
I don't see my post in my mail. Maybe others have not received it:
Manual says "Effective flash range" starts at 0,7m at 100 iso and 5.6.
I did tests at 400 iso, as this is the "normal" iso with ist + P-TTL flash.
With the two 360FTZ flashes at 0,7m from subject (a Kodak Gray Scale), both at full power (1/1) and at a 45 degree angle, exposure was fine from 5.6 to 22. At 35cm, exposure was fine from 8 to 22 and over-ex at 5.6. At 13cm, overexposure starts at 11.
Andre
