Canon speedlite 540ez

What is your questions?

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Yes. The 580EX II will work with any Canon digital SLR.

The Canon 540 EZ is a film camera flash, no doubt it might flash but possibly not at the right time.

What you need is a digital camera flash with the designation of EX

Hi,
Congrats on your flash purchase. To pruchase a copy of the instructions manual, I would suggest the infamous ebay. There is currently a copy available by this seller: http://cgi.ebay.com/Canon-Speedlite-540EZ-Instruction-Manual-Orig_W0QQitemZ220318470163QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item334c011013#ht_818wt_1166
Alternatively, check out this mir site for information regarding the buttons and capabilities: http://www.mir.com.my/rb/photography/hardwares/classics/eos/EOS-1n/Flash/Canon_540EZ/index.htm
Hope this helps.
Andrew

No. The rebel, or any digital canon camera requires the use of the EX or EX II series flashes.

if you even use 430 exII that is great too. It should work too.

does the red bulb show when the flash is ready to shoot ? you can press the button that lights red or green to test the flash on itself.

canon 580EX [I or II]

540EZ will not work on digital Canons in auto reading mode. It will only work on manual flash settings.

According to the Canon feature chart I have here; the 540EZ Speedlite flash is not compatible with the Digital Rebel XT in ETTL mode. The 480EG is also not compatible. The 550 or any of the others in that product line are would work. David Millier Advance Camera Repair