Sunday 11 December 2016

My new 50mm F1.8 lens doesn't focus in the dark.
Bought with bokeh Christmas lights behind a portrait in mind, the narrow band of focus shows up the slightest deviation from correct focus on the nearest eye.
I'm using flashguns to light my model and she is lit up beautifully, but, she's out of focus!
It seems the new Yongnuo 622 tx radio trigger have a transmitter that sends out an infra red gridde focusing aid. Before I bought a set I remember seeing a Canon ST-E2 lying around in my studio.
Sure enough it sends out an infra red focusing grid long enough for the lens to focus, then turns off automatically - Brilliant!!
Remote control of a Canon flash in most rooms, or even a large hall, is a doddle. Outside I need line of sight with 12 metres maximum reach, but with the flash in slave mode I can operate all the controls including high speed sync. Plus, I can fire several other flashes in two groups and have ratio control over both groups.

However, I have one Canon flash and three Yongnuo 560 flashes and although they will all fire there seems no way I can make the Yongnuo's fire in sync with the shutter.
 The infra red beam fires off the Yongnuo's before the shutter has opened no matter which mode I use.

To be continued after the purchase of a set of Yongnuo 622tx radio triggers.