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Radio Triggers

Posted on 01-18-2013 in Influential Photo Gear

One of the main reasons I got my first DSLR (Pentax *ist DS) was cave photography. While I've seen many admirable cave photos they were all carefully set up and posed. Beautiful as they were they lacked something - a captured moment. It's not like cavers didn't capture moments in caves it's just that they did it with point and shoot cameras and on-board flash. I wanted to do better than that.

At first I thought that high ISO will do the trick but it was no where near high enough to freeze a moment with available light. So I started experimenting with flashes and optical triggers. It was a step in the right direction but a cumbersome one. Caves feed on light and bounce very little of it so flashes had to be in visual range of each other. Another trouble was that whenever someone took a snap with their compact camera it would trigger the flashes.

Around that time (6 years ago) first cheap radio triggers were emerging on eBay so I decided to try them out. One thing they lacked was range and reliability but that was fixable with antenna mod - a piece of wire that was soldered to transmitter circuit board.

Three flashes, three receivers (one glued to the flash in the middle) and trigger with white wire antenna (click image to enlarge)
A case with flashes, triggers and space for camera (click image to enlarge)

What I like most about them is that they don't mind the trigger voltage of flash, they are very small and if fellow caver brings along compact camera he can snap all he wants - my flashes will be ready when I need them.

The triggers have their vices and virtues but once you get to know them capturing moment in cave is actually doable. Why just doable? While triggers do their part most of the time, prior to taking photo one has to pair them with flashes which then have to be put on right spots so they provide good light while not getting in the way or getting damaged.

Some pictures that I couldn't have done without the radio triggers (click an image to enlarge and browse):  

Cavers waiting to climb out of the cave after stretchers have successfully surfaced on a cave rescue training
 
Taking measures of cave
 
Getting ready for a cave dive
 
Caver reporting of continuation behind a narrow passage that he's just been through
 
Cigarette break
 
Putting on a harness before descending further in the cave

- Matjazz

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Class A [Delete] Jan 19th, 2013 11:32PM

Great shots!

gmans [Delete] Jan 19th, 2013 12:15PM

So cool, every photo and such great composition in tight places, true sense of being there. the normally harshness of electronic flash brings out the dirt, grime brilliantly and then the warm glow from the cave.

Schmidlapper [Delete] Jan 19th, 2013 5:19AM

These are amazing photos, and they do convey a moment rarely experienced by the vast majority. What category would this fall under, sports action possibly? Thanks for thinking this out and making the effort to document it so well, and of course with a Pentax.

kff [Delete] Jan 19th, 2013 3:33AM

What a pity! Pentax still hasn't P-TTL radio adapter for P-TTL generation of flashes ... Maybe it needs firmware via USB such as it can do some Metz' flashes ...

Barbarosa [Delete] Jan 19th, 2013 3:00AM

Great photos, and well mastered "cave" photography.
Photography is a bit like law practice, if You want to be good in some area You need to specialize and master it.

hcc [Delete] Jan 19th, 2013 12:44AM

Great. Awesome. Thank you for sharing.

oxidized [Delete] Jan 18th, 2013 10:20PM

This is soooo awesome!!!

hcarvalhoalves [Delete] Jan 18th, 2013 9:34PM

Beautiful pictures and story. Loved that case of yours!

tromboads [Delete] Jan 18th, 2013 9:23PM

This kind of world seems so removed from anything I've experienced. Love it :P

rangercarp [Delete] Jan 18th, 2013 8:28PM

I'm becoming a big fan of pictures like thees that take work (i.e. planning and set up) to create. Thanks for sharing.