Sorry, if I add confusion, but with the Canon APS-C, the zoom of the Tamron 150-600 mm lens translates to somewhere 10 degree to 2.5 degree wide field of view. If somehow the aiming of the flashlight could be done simultaneously with the aiming of the camera, one should consider a narrower beam for better illumination (not like any of the dedicated throwers like BLF GT, though).
Looking at the images supplied by goshdogit, I think, the Noctigon M43 Meteor won’t supply enough candela.
Let’s fix aperture to f/8, but change shutter speed from 1.3 seconds to somewhere around 1/50 (safe shutter speed to calculate exposure for low light video footages). That means, he will have to crank up ISO from 400 to 25600 to achieve the same exposure.
Let’s open up aperture to f/6.3, it is still ISO16000 (I think, for a 1st gen Canon 7D - or any APS-C camera, that would be barely usable).
I think, the best options could be some throwy, but wide beam flashlights with XHP70/XHP70.2 (And some multi-emitter lights like BLF Q8) - my first guess is we need around 100 000 - 200 000 candela to have a good illumination for the mentioned Tamron telephoto lens, and the given distance.
(For photography, I would also prefer a high CRI option, but as we got the use case outlined, there will be some raw power needed for sure, I guess)
Also, I think, we need to target the illumination with not the maximum output of the flashlight (which could be for just a few minutes, before some regulation kicks in), but the sustainable output.
Has somebody candela numbers for the Noctigon Meteor M43 Nichia 219C 5000K variant (both maximum, and sustainable) ?