Aputure F10 Fresnel with Aputure F10 Barndoors for LS 600d Fresnel Attachment BundleAputure F10 Fresnel The Aputure F10 Fresnel is made for modular Bowens Mount fixtures. With its wide 250mm (9. 84 inch) glass Fresnel, the F10 both immensely intensifies the output of a point source LED, but also results in a quality of light lighting technicians will find similar to a Tungsten 5K or Studio 2K. Intensely Bright The F10 Fresnel functions at its best when paired with the Aputure LS 600d Pro, a 600W Daylight COB LED. Together, this