William Optics NEW ZenithStar 81 WIFD - T-ZS-81RD-WIFD Dew Heaters Secondary Mirror Obstruction: 1

Secondary Mirror Obstruction: 1

8X Focal Reducer is ideal for use with the SharpStar model 61EDPH Refractor telescope for doing full-frame imaging with DSLR or other electronic cameras

This Celestron C90 Mak Spotting Scope has excellent optics with razor sharp images over a wide field

You can also choose to mount the SkyGuider Pro head (without the base) directly to any standard photographic tripod with 1/4” or 3/8” threads

Spacer Ring Kit for astroimaging purposes

William Optics NEW ZenithStar 81 WIFD - T-ZS-81RD-WIFD Dew Heaters Secondary Mirror Obstruction: 1Description Specifications: Lens Type Doublet Apochromatic Prime Lens Focal Length 559 mm Diameter 81 mm Aperture f 6. 9 Image circle > 44mm Focuser WIFD (WO INTERNAL FOCUS DESIGN Compatible with EAF Optional Flattener FLAT 6AIII 0. 8x Adapters N A Lens Material FPL 53 Camera Format > Full Frame T Mounts Supported: Canon EF, RF Nikon F, Z Sony E Pentax K MFT (M4 3) FUJI X Tube Length 526 mm 607 mm OTA Weight 3. 55 kg 7. 82 lbs Total Weight 4. 56 kg