FLASH SYNCH FOR MACRO
Moderators: rjlittlefield, ChrisR, Chris S., Pau
FLASH SYNCH FOR MACRO
I am wanting to use second curtain flash synch with a long exposure, so that vibration from the first cutain dies down before the flash fires. (This is in addition to mirror-up and using the timer) This works OK with the 520 EX II Speedlight, but this option is greyed out when I try to use the Canon MT 24 EX twin macro flash. I get a message that says the flash is incompatible with the second curtain function. Does anyone know a way round this or will I have to buy a second 520 EX II ? Any advice would be much appreciated. Alan.
Dr Alan Morgan
- Craig Gerard
- Posts: 2877
- Joined: Sat May 01, 2010 1:51 am
- Location: Australia
Alan,
It will need to be set on the flash unit, not via the camera menu, though it may be possible via a custom function. Which camera are you using?
I don't own a MT-24EX so can't be more specific. Hopefully the following links may be helpful, whilst awaiting additional input from other members.
http://photonotes.org/articles/eos-flash/index3.html
Craig
It will need to be set on the flash unit, not via the camera menu, though it may be possible via a custom function. Which camera are you using?
I don't own a MT-24EX so can't be more specific. Hopefully the following links may be helpful, whilst awaiting additional input from other members.
http://www.learn.usa.canon.com/app/pdfs ... kGuide.pdfBy default, the flash fires in synchronization with the first shutter curtain when the shutter is fully open. With Second-curtain Sync, the flash fires immediately before the second shutter curtain closes at the end of the exposure.
http://photonotes.org/articles/eos-flash/index3.html
Craig
To use a classic quote from 'Antz' - "I almost know exactly what I'm doing!"
Craig Gerard wrote:Alan,
It will need to be set on the flash unit, not via the camera menu, though it may be possible via a custom function. Which camera are you using?
I don't own a MT-24EX so can't be more specific. Hopefully the following links may be helpful, whilst awaiting additional input from other members.
http://www.learn.usa.canon.com/app/pdfs ... kGuide.pdfBy default, the flash fires in synchronization with the first shutter curtain when the shutter is fully open. With Second-curtain Sync, the flash fires immediately before the second shutter curtain closes at the end of the exposure.
http://photonotes.org/articles/eos-flash/index3.html
Hi, I am not yet used to this forum business and I think my previous attempt to reply to you may have failed, so trying again. Thanks very much indeed for the link to the Canon training pdf doc - this told me exactly what I wanted to know and I have now done my first stack ! I will attempt to upload it. I took 100 shots at 1 thou intervals and used Helicon Focus. Lots to optimise !! Thnaks agin for you very helpful reply. Cheers, Alan Morgan.
Craig
Dr Alan Morgan
Seems a strange control logic - you would think the camera would just send a sync signal to the flash telling it when to fire. This way it implies the camera always sends a first and a second curtain sync signal and the flash decides which one to pick.MICROMOG wrote:Problem now sorted. With the MT 24 EX flash you have to set second curtain on the flash unit rather than on the camera.JW wrote:Weird, works for me using an old Canon 10D body, with a custom function setting for second curtain sync.
Many thanks for responding.
Alan Morgan
rgds, Andrew
"Is that an accurate dictionary ? Charlie Eppes
"Is that an accurate dictionary ? Charlie Eppes