Problems using AF540FGZ flash as slave

Started Jun 19, 2013 | Questions thread
Shop cameras & lenses ▾
Flat view
Kursun Regular Member • Posts: 128
Problems using AF540FGZ flash as slave

I am photographing some close-ups of some electronic equipment. My camera is K-x and flash AF540FGZ.

I use the AF540 as slave triggered by the flash on camera. Flash on camera acts as direct fill-in and the AF540 provides diffused light bounced from the ceiling.

My problem:

When I take a picture, the on camera flash pre-flashes, the slave flashes too, but when the on camera flash flashes for the actual exposure the slave flash (AF540) is off. AF 540 doesn’t support P-TTL flash in this configuration.

One way to get around this problem I have found, is to mask the AF540’s sensor during pre-flash.

Surely there must be a more convenient solution.

I don’t want to spend on special dedicated cables though…

This question has not been answered yet.
Pentax K-x
If you believe there are incorrect tags, please send us this post using our feedback form.
Flat view
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow