Profoto 100501 RFi Speedring for Profoto Studio Accessories and has a common filter

and has a common filter diameter of φ67 mm

the zoom range is an approximate 225-750mm full-frame equivalent

Including in the Box:

this lens is particularly suitable for landscape

Profoto 100501 RFi Speedring for Profoto Studio Accessories and has a common filterThe Profoto RFi Speedring Adapter makes the RFi softboxes compatible with well over 20 different flash brands, ranging all the way from speedlights to high end studio strobes. Even if you own flashes from many different manufacturers, you now only need one brand of softboxes. The Profoto RFi Speedring Adapter is designed so that the RFi softboxes can be rotated 360 degrees, allowing the photographer to adjust and shape the light on the fly. The color