thomas.karlsten Posted October 18, 2004 Share Posted October 18, 2004 I have an old Metz 34 BCT 1 can I use it without destroing my Leica M6 TTL. Tanks Thomas in Sweden Link to comment Share on other sites More sharing options...
jae_myung_shim Posted October 18, 2004 Share Posted October 18, 2004 >>>>can I use it without destroing my Leica M6 TTL How does using a flash destroy a camera? I read somewhere that high voltage of flash can affect electric system of the camera. Are you referring to that? By the way, is this "high voltage" thing true? Link to comment Share on other sites More sharing options...
jae_myung_shim Posted October 18, 2004 Share Posted October 18, 2004 Hmm.. in one of the threads below, there is a mentioning about flash voltage and camera ... It seems that one just cannot use any flash. But the problem is how do you know certain flash is compatible/incompatible with your camera? Thomas, sorry that I'm not answering your question but adding my own question. Link to comment Share on other sites More sharing options...
bob soltis Posted October 18, 2004 Share Posted October 18, 2004 Thomas, at the English language course on the Leica M6TTL, we were advised to not use a flash other than the SF-20 on the M6TTL. The high voltages of other flash can damage the meter circuitry of the M6TTL - and for that matter the M7 -- there have been threads on this. You might query Leica by email. regards, Bob Link to comment Share on other sites More sharing options...
andrew_hall1 Posted October 18, 2004 Share Posted October 18, 2004 Short answer is risky. Trigger voltage is too high. Long answer: I provided the recommeneded voltage limit (from Leica) in an old thread. Search the archives. Link to comment Share on other sites More sharing options...
mskovacs Posted October 19, 2004 Share Posted October 19, 2004 With single contact, non-TTL cameras the flash trigger voltage is contained within the synch circuit. With TTL cameras, there are other contacts for the flash control that are connected with ICs. If the hot trigger has high voltage and hits one of those TTL contacts, it can fry the TTL circuitry. The way to check is to take a volt meter and measure the voltage on the big synch contact on your flash. Most modern flashes are 5V or less. Older flashes can be 100's of volts! If you use a low voltage Metz, Vivitar, Sunpak and the like, the Leica official statement is BS. They are just covering themselves in case of a high V model and want to sell more overpriced Leica flashes... Link to comment Share on other sites More sharing options...
jae_myung_shim Posted October 19, 2004 Share Posted October 19, 2004 >>>>With single contact, non-TTL cameras the flash trigger voltage is contained within the synch circuit. With TTL cameras, there are other contacts for the flash control that are connected with ICs. Isn't another way of saying it that a flash whose shoe has single contact point is OK with TTL cameras no matter what its trigger voltage is because with such a flash there is only one contact between camera and flash (and therefore the trigger voltage is contained within the synch circuit)? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now