Five magnifications - focal lengths 8, 12, 16, 20 and 24mm clearly defined with "smoothed-out" improved Click stop Action (a must for effortless bino viewing). Long eye relief Flat field design – sharp right to the edge of field. High Quality Phantom Coating Group Multicasting's! For faintest objects, maximum contrast and total freedom from reflections. Large adjustable rubber eyecup, smaller straight rubber eyecup and winged, foldable eyecup included, to fit over M43 photo/video-thread. M43-Video-Photo thread for a focal and classical projection photography, permits optional adaptation of practically any camera with optional accessories. Includes 2" and 1¼" barrel, usable for all 1¼" binoculars with detachable eye-rest and spotting scope with 1 3/8" thread (Celestron / Sky-Watcher and others). Zero-Tilt safety kerfs instead of the hated undercuts in the barrels. Includes 2" SC-thread for shortest possible adaptation to telescopes or prisms/mirrors. 4mm back focus-gain with spotting scope A-Ring (included): the Mark IV focuses with all tested spotting scopes (optional adapters available for most major brands). Specifications: Weight (kg): 0.290. Focal Length: 8 - 24 mm. Apparent Field of View: 48° - 68°. Number of Lens Elements: 7. Number of Groups: 4. AR-Coating: Phantom Coating Group. Threaded for filters: Yes. Camera Thread: M43. Par focal Eyepieces: Yes. Dust caps 1¼" dust cap (31,8mm), 2" dust cap (45mm), 2" dust cap (46.5mm - fits over eyecup). Eyecups: large height adjustable eyecup (M43), small eyecup (M43), winged eyecup (M43). Slip Protect Safety: Safety Kerfs. Eyepiece Body above Reference Plane (mm): 81 mm. Length of 1¼" barrel (mm): 24,5 mm. Length of 2" barrel (mm): 27 mm. Outer Diameter: 55 mm. Outer Connection (eyepiece/-camera-sided): Thread, M43. Inner Connection (lens sided): Thread, 1 3/8", 2".Outer Connection (lens sided): Barrel, 1¼", 2". Barrel Size (in): 1¼", 2". Optical Design: Modular. Speciality: Eyepiece projection: a focal
Baader Planetarium Hyperion Universal Zoom Mark IV 8-24mm Eyepiece