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Description
General
Optical Coatings:
Fully Multi-Coated
Weight:
0.8 lbs (0.36 kg)
Compression Factor:
.7x
Lens Elements:
4-Element
Optimal Back Focus:
105mm (4.13")
The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10
4-element lens design
Maintains similar flat-field performance as native EdgeHD optical design
Increases field of view by 43% (double by area) to better capture wide field images
Optimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras
Provides generous 105mm back focus to accomodate additional accessories and a wide variety of cameras
