The lens is a Pentax A*200 f4 Macro and i actually find it a lot harder to get a crisp pic with it compared to my Tamron 90 macro due mainly to movement blur so i tend to try and use a wide aperture to keep the speed up where possible.
Only just got this lens so i am still trying to work out how to use it.
I will get into flash with it when i get the info contact pin fixed as i can only use it fully manual at the moment.
its a very very sharp bit of glass but i have yet to get the best sharpness AND an interesting pic at the same time
