Camera Labs

can I use the old canon 540 ez flash on my 50d or could that hurt the camera?

_________________
Camera: Canon 50D,powershot S3IS
Lens:Canon EF 28-135mm f/3.5-5.6.
Light:Canon 580 EX II.
Accessories:Canon 72mm UV filter, Canon Gadget bag,Sunpak 6600DX tripod,Targus cleaning kit.
Extreme III cards.

It won't hurt the camera. I think there are some issues using the EZ models on a crop sensor body (Someone else will probably add to this thread with the details), but the flash should not damage the body.

_________________
Canon 1000D, EF-S 17-85, EF-S 60mm macro f/2.8, EF 50mm f/1.8, Tamron 70-300, 430EX II

Trigger voltages are quite high on older flashes and CAN potentially damage your camera. I think canon's limit is 30 volts.

There's a database for compatibility online somewhere, I'd suggest googling something like "flash trigger voltages".

_________________
I take pictures so quickly, my highschool was "Continuous High".

ok I sent my question to canon tech support and they said that it would be fine,

so now my question is can I use cactus v2s or v4 with both the 580ex2 and the 540ez flash

_________________
Camera: Canon 50D,powershot S3IS
Lens:Canon EF 28-135mm f/3.5-5.6.
Light:Canon 580 EX II.
Accessories:Canon 72mm UV filter, Canon Gadget bag,Sunpak 6600DX tripod,Targus cleaning kit.
Extreme III cards.

According to the Gadget Infinity web site-

Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX II, 430EX, 430EZ, 420EX, 420EZ, 380EX;

_________________
Canon 1000D, EF-S 17-85, EF-S 60mm macro f/2.8, EF 50mm f/1.8, Tamron 70-300, 430EX II

right on, thanks, ill test them out in the future and let everyone know ,, maybe Gordan would do some reviews on flash triggers that would be awesome

_________________
Camera: Canon 50D,powershot S3IS
Lens:Canon EF 28-135mm f/3.5-5.6.
Light:Canon 580 EX II.
Accessories:Canon 72mm UV filter, Canon Gadget bag,Sunpak 6600DX tripod,Targus cleaning kit.
Extreme III cards.

well, i bought the 540ez got a good deal, and i think i will buy the cactus v4s

_________________
Camera: Canon 50D,powershot S3IS
Lens:Canon EF 28-135mm f/3.5-5.6.
Light:Canon 580 EX II.
Accessories:Canon 72mm UV filter, Canon Gadget bag,Sunpak 6600DX tripod,Targus cleaning kit.
Extreme III cards.