BigRuss
Suspended / Banned
- Messages
- 467
- Name
- Russell
- Edit My Images
- Yes
The camera gives you control. If you want it to work like a compact, then stick it on the green square. But if you want control, then you also have P, Av, Tv and Manual.
P is actually underrated and gives you both a lot of control plus the ease of point 'n' shoot. If you want, you can use programme shift to get all the variations available on the other modes, plus it is configured for flash in a unique way. It will track the ambient light level between max x-sync (1/200sec on a 500D) and 1/60sec, after which it decides that it is better to let the background go dark than risk any movement blur. Quite versatile, and foolproof.
On Av, it will track the ambient light for correct background exposure down to as long as it takes, and balance the flash to it. There is also an override for this in custom functions, if you want to restrict the length of the shutter speed.
Or there's Manual. You can do anything with that, and the in E-TTL the flash will still balance with the f/number. Plus you've got the FEL lock (which might have resolved your problem) which prevents incorrect exposure with off-centre subjects, amongst other things.
Then you have options like second-curtain sync, and with a separate gun you can bounce the light around, have the option of high speed sync, use diffusers etc etc.
It might sound a bit confusing, but flash needs a bit of learning to get the most from it. Get a decent gun (eg Canon 430EXII), read the handbook, play around a bit, check out some of the threads on here, ask questions. You'll be away. Flash is fantastically useful, and has endless creative options![]()
Tip: if you run out of flash power, then raising the ISO one stop, or lowering the f/number one stop, effectively doubles the power of the flash.
Cheers Rich for the detailed reply, more reading, more trying, more generally messing needed....i'll get there