ys-27DX settings

I am new to strobes and just purchased a YS-27DX for my Fuji F50. I see different people referring

to setting their strobes for different f-stops. I was curious as to how this is done. My strobe has 9 different

settings starting with min. to max. there are no reference numbers in between. How do I know

what each mark corresponds to?

Thanks in advance for any help.

I have the same strobe...

you have only to take the photo starting by a medium setting... AFTER watch it in display(when the camera saving the image...)and:

If you see much light by flash,take again the same photo with a minus setting.

If you see few light by flash,take again the same photo with a bigger setting.

I do in this mode...

Hoping that this help you...

bye from Italy...