FAQ FAQ  Forum Search   Events   Register Register  Login Login

Pop up flash as a trigger
Author
  Topic Search Topic Search  Topic Options Topic Options
Berean View Drop Down
Senior Member
Senior Member

Joined: 16 January 2010
Country: United Kingdom
Location: Devon
Status: Offline
Posts: 155 		Post Options Post Options   Quote Berean Quote  Post ReplyReply Direct Link To This Post Topic: Pop up flash as a trigger
    Posted: 03 February 2012 at 20:10
Hi, I've been following Strobist.com and thier fantastic lighting lessons. I have an A700 and an HVL F42 and at the moment trigger the F42 by flicking up the pop up flash, covering the strobe so no light escapes, and use the infra red component as a trigger for the off camera flash. I can't afford dedicated triggers at present, and wonder if there's anything that could go awry? Your advice and expertise is gratefully received
Can't you see? It all makes perfect sense, expressed in dollars and cents, pounds, shillings and pence: Roger Waters.

A700, Sig 10-20, 17-70, 70-200, Min 24-85, 28, 50, Vivitar 100 macro, HVFL 42AM
Back to Top
Sponsored Links


Back to Top
Alanbrowne View Drop Down
Senior Member
Senior Member

Joined: 17 May 2009
Country: United Kingdom
Location: Canada
Status: Offline
Posts: 1056 		Post Options Post Options   Quote Alanbrowne Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2012 at 22:55
1. Block it so it doesn't appear as a reflection in the subject image:
       -business card taped just in front but with a large gap- reflects light up and to the sides
       -some developed, but unexposed E-6 film as a mask will allow the infrared through (from the flash, but not much (or any) of the visible light.

2. In blocking you might compromise the receivers on the strobes - some strategically placed aluminum foil can help "gather" light for the sensor to help trip it.

3. You probably know this, but be sure that pre-flash is off.

4. Cheap radio strobes (Cactus) can be had for about $30 - $40 used. Check your Craigslist.

Have fun!
Back to Top
sybersitizen View Drop Down
Senior Member
Senior Member

Joined: 04 August 2006
Country: United States
Location: California
Status: Online
Posts: 5677 		Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2012 at 23:44
Originally posted by Berean Berean wrote:

I have an A700 and an HVL F42 and at the moment trigger the F42 by flicking up the pop up flash, covering the strobe so no light escapes, and use the infra red component as a trigger for the off camera flash. I can't afford dedicated triggers at present, and wonder if there's anything that could go awry?

What you're doing is fine. Just don't overwork the pop-up to the point where it gets too hot.
TheSyberSite
Back to Top
Bob J View Drop Down
Admin Group
Admin Group
Dyxum Administrator

Joined: 23 December 2005
Country: United Kingdom
Location: London
Status: Offline
Posts: 15471 		Post Options Post Options   Quote Bob J Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2012 at 00:17
I use a bit of fogged film taped over my pop-up so I don't get direct illumination from the camera. It stays in place even when the flash is down, but can be peeled away if required.

Previously I used a small bag made out of a grey lenscloth as a hood to put over the pop-up, but it was too easy to mislay
RBJ ~ Moderation on Dyxum
Back to Top
Dyxum main page >  Forum Home > Equipment forums > Lighting
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.109 seconds.

Monitor calibration strip

Dyxum.com - Home of the Minolta / Alpha-mount dSLR photographer.

Feel free to contact us if needed. You can support future development by making a donation.

Links monetized by VigLink