Orion 0.5x Focal Reducer for StarShoot G3-G4 Imaging Cameras 0.5x focal reducer for StarShoot G3 or G4 imaging cameras increases imaging area by a factor of 4. Wider imaging area allows capture of larger starfields or deep-sky objects. Fully coated two-lens design Works with Orion StarShoot G3 or G4 Color and StarShoot G3 or G4 Monochrome cameras Rugged anodized aluminum cell threads directly into the camera nosepiece