HELP WITH 550EX

[Photorob]

WHEN USING MY 550EX ON INSIDE PHOTOS WITH MARK2 AND 24-70L LENS I AM TRYING TO GET LARGER APERTURE FOR SHARPER FOCUS BUT THE CAMERA WILL NOT ALLOW LARGER APERTURE SETTING. SHOULD I TRY THE AV SETING OR CHANGE TO A LARGER ISO SETTING FOR BETTER RESULTS? WOULD APPRECIATE SOME INPUT.

[PekkaM]

DON'T KNOW. 550EX SHOULDN'T AFFECT WHAT APERTURE YOU CAN USE. YOU SAID LARGER APERTURE BUT SNICE YOU WANT SHARPER FOCUS YOU PROBABLY MEANT LARGER F-NUMBER WHICH IS EXACTLY THE OPPOSITE. ARE YOU SHOOTING IN M-MODE OR WHAT? PRETTY HARD TO READ, ISN'T IT? ;)

[Photorob]

THANKS FOR YOUR REPLY.I AM SHOOTING IN THE P MODE WITH THE CAMERA AND HAVE THE FLASH SET IN THE ETTL MODE. AGAIN WHEN I TRY TO SET A LARGER F-STOP THE MODE DOES NOT REALLY ACCEPT THIS. I GUESS I CAN LEARN THE MANUAL MODE BUT IT SEEM REALLY COMPLICATED. I WAS HOPING THE AV SETTING MY BE EASIER TO USE WITH THE ETTL MODE WITH LENS