TP: Cheap secondary wireless flash?

MojoRick - Those timing diagrams do give some insight into this. Perhaps the best way to do this is to detect the first seven rising edges, and then fire the flash on the eighth, though this would require a PIC to do (unless you want to make a mess with counters); also would fail if the trigger misses a pulse accidentally. I'm not sure what to do about HSS, because I would think that the flash would have to support the ability to fire for a long period of time. I was under the impression that all those cheap auto-flashes weren't really meant for HSS.

georgiaboy - You probably don't want to put more than one flash on a thyristor (scr1). However you can put more thyristors in parallel, and have each one fire an individual flash.

Try searching for iShoot brand. I have a transmitter (fits on my A77 hotshoe) and 2 receivers ( Each has a Sony/Minolta shoe for the flash and a 1/4" socket underneath for mounting on tripods etc. (Gorilla style pods are handy outdoors). I have been struggling on with a Sunpak auto355af and a Quantaray QBX8000xi : both are fossils but they trigger on these receivers and they cost me $20 the pair! I can't seem to configure for ratio lighting and have had to experiment with distance and various modifiers to soften the blast.

Be careful though, these are made cheaply and don't like being forced on and off hotshoes (had to repair one after its foot stayed in the shoe) but they only cost around $20 -30 the set compared to $150 plus for the ones in my local photo dealer's shop. I am only just learning to do off camera strobist techniques and I still don't understand what the newest gear can and cannot do with my A77 wirelessly. Seems a professional secret.

PS. I think the Yongnuo company make a range too.

Hello, let's open this topics after several years.

I have a question:
I bought used camera sony SLT-A99V and as there is no internal flash I bought a system flash Sony hvl-f43am together with flash reduction Minolta to Sony hot shoe.
As I got in the past former Sony camera dslr a700 together with flash Metz 48 AF-1 I am thinking about to use it with A99 in wireless flashing as a second flash. Now thinking how to trigger both flashes in wireless mode. One solution is to buy some small flash, e.g. Hvl-f20am and by this flash trigger and control both Sony and Metz flashes in wireless mode or to use radio wireless trigger, e.g. Pixel Pown TF 363 for Sony /Minolta that seems to me more versatile.
Thank you in advance for your help or your opinion.

I have to ask how often you'll be using 1: on camera flash? 2: off camera wireless flash? 3: if you require HSS as well as TTL?

You DON'T need HVL-F20AM (which still requires an adapter on your body) HVL-F20M would be the model to get but unless you want 2 wireless units and with that model both units will fire at the same power since the HVL-F20M is a very basic control unit with no advanced settings possible.

The HVL-F43AM is able to provide you with:
- WL control
- + Ratio between your body flash and wireless flash at your will between it on camera and your remote unit
- + TTL
- + HSS if your Metz flash allows it

Why don't you try it before going through a purchase that may be unnecessary ?

Radio triggers by Sony will not work with these older bodies and flash( only M and RM units with bodies that are younger than A7II or A99 model 2).
The only ones i have that work with both old and new are the Phottix Odin units but they are now hard to find

Well then I would recommend you keep your eye out for a HVL-F43M at a reasonable price. Far more useful than the F20M, native shoe mount, same controls as the F43AM.