Alien Bees ABR800 Ring Light what kind of battery_Silver Oxide It's too short for a

It's too short for a classic EF 70-200mm f2

and the 1988 F4 (although its label here is a duplicate of the F3's caption)

It doesn't zoom

this is about as simple a slide-duper setup as you can get: it just threads right in and holds the slide in place

Alien Bees ABR800 Ring Light what kind of battery_Silver Oxide It's too short for aThe Alien Bees ABR800 is a powerful ring light that can be used on a tripod or a light stand. This light includes a camera mounting platform that can be configured to work with nearly any camera, allowing "shoot through" use with lenses that have an outer diameter of 10cm or less. This is not a portable device: it prefers to be on a stand, and it plugs into the wall. Overpowered for most macro shooting, too. But for studio use? Excellent. Light