Godox FLS10 10-Inch Fresnel Lens, Bowens S-Type Mount

The FLS10 is a 10-inch fresnel lens for Bowens S-type COB LED lights. It's the fresnel to choose for the Godox M600D and M600Bi, which the smaller FLS8 doesn't fit, and it also suits the Knowled M300D. The ringed glass concentrates the light and raises its effective output by up to 19 times, so it reaches much further across a large set.

The beam adjusts from a 10° spot to a 35° flood. On the M600Bi in the spot position at 5600K it measures 159,000 lux at 1.5m and 40,100 lux at 3m. On the M300D, Godox quotes 46,400 lux at 3m. That kind of control is what you want for lighting a subject from a distance, or for placing a defined pool of light on a painted canvas backdrop while the edges fall away into shadow.

Barn doors are available separately to cut and shape the spill. The body is sturdily built and keeps light leaks to a minimum, and the lens works just as well for commercial, advertising and fashion stills as it does for film and theatre. It's designed for use with LED lights only.