Help with Flash for Q17

[Energy]

HI, I recently bought a Q17 GIII with the original flash Canonlite D.
I am wondering if this flash will be affected of the settings I'm doing on the aperture ring at my Canonet Q17, but I can't find anything about the blue numbers 28,20,14.
Could anyone help me with that???

Regards
Marc

 

[Energy]

Hey, thanks a lot. That was exactly what I needed.
Flash fotography with that cam is much easier as it is with new cams. Why don't they make it like with that cam?!?
Regards
Marc

 

[airds]

Why don't they make it like with that cam?!?

While on the subject, does anybody use the more recent Canon Speedlite 011A (bottom of page) flash with a Canonet? No mention of Canonets in it's manual.

Thanks in advance