Achromatic Diopters can increase the minimum working distance enabling closer focus from a greater working distance. Achromatic Diopters offer increased image performance over traditional single element diopters. Achromats enable close focus by using two precision ground elements that are joined together to reduce incidence of chromatic aberrations. Achromats should be used when the highest quality of image that is sharp edge to edge for close focus is required. Calculation of strength depends on focal length, focus setting, object distance, and size.
In addition to the benefits they provide during the filming of close-ups in live action scenes, these diopters are perfect for tabletop and miniatures, and cinematography of graphics or artwork. Schneider Achromat Diopters are available in rugged, hard carrying cases with heavily padded interior compartment(s), sold separately. Each Schneider Achromat Diopter has a molded rubber gripping surface and is supplied with front and rear lens caps.Century Precision Optics' advanced line of Achromatic Diopters provides video zoom lenses with more close-up range and magnification, while maintaining zoom capabilities — without compromising image quality.
The Schneider Optics 82MM +2 Achromatic Underwater Diopter permit focusing at close camera-to-subject distances at the expense of image clarity. Instead, Achromatic Diopters feature two highly corrected glass elements which minimize chromatic aberration and distortion. These diopters also feature a hard anti-reflective coating. This dramatically reduces light loss and flare while helping to further ensure proper color, contrast and overall image quality. Step Up ring required.