18 hours ago, ChrisRoss said:
I think the need for auto off from focus lights is over-rated, a strobe is so much more powerful than a focus light it will drown it out easily. I use an INON focus light quite a bit with no auto off and never had a hint of it showing up in the shots. There are probably a few special use cases where it might like shooting in slow sync with really slow shutter speeds to pull in low level ambient light, but for conventional photography (dark enough to need a focus light, shutter speed around 1/100 or higher and low ISO) it will never show up.
Most focus lights are too bright IMO, you only need the very lowest power to illuminate your subject enough for the AF system to start working.
I mostly use a focus light at night and frequently use red mode as many creatures don't flee and hide from that as quickly as they do a white light. Before I had an auto-shutoff, I did at times find a reddish or pinkish area in the middle of the shot. Everything we are taught about lighting suggests the strobe should overpower that, but there it was. So that is when I got an auto-off light and the problem went away.
I agree with you on the brightness point. Luckily many of the lights can be turned down to 25%, but I often use my neo mini 500 at 25% as well, which is much dimmer that the current 1000-1500 lights even at 25%. The upside to the brighter lights is that they can be be a backup to a dive light, which can be nice if your main light suddenly floods and goes dark.
I have started using dive and focus lights using 18560 batteries. They have a long run time and the single or double cell chargers are pretty small. Also there are a number of 18560 batteries that have a built in USB port so all you need to charge the battery is a USB cable, which I would think everyone has anyway.