Sigma Rear Gel Filter Holder for Sigma 14mm Art Lens for Canon EF IOGEAR GCS1904-KM It can be used as

It can be used as an FEL substitute in a 5

you might do well to pick the white diffusion Westcott 7' White Diffusion Umbrella

90� entry angle

Multiple Screw Patterns

Sigma Rear Gel Filter Holder for Sigma 14mm Art Lens for Canon EF IOGEAR GCS1904-KM It can be used asFor EF Mount Sigma 14mm f 1. 8 DG HSM Art Holds Pre Cut Gel Filter Tracing and Cutting Template Easy Installation This Sigma Rear Gel Filter Holder is designed to allow for the convenient use of a pre cut polyester or polycarbonate gel filter with a Sigma 14mm f 1. 8 DG HSM Art Lens for Canon EF without vignetting. Use of the filter holder is easily accomplished by first unscrewing the shim that is pre installed over the mount of a Sigma 14mm f 1. 8