SWAN: with any focal length telescope, this great all-around eyepiece will not let you down!

The incredibly wide 72 deg. F.O.V. makes it perfect for low-power rich-field viewing.
A great optical achievement!

              7MM & 4MM ULTRA WIDE ANGLE EYEPIECE WITH 82 DEGREE FIELD OF VIEW, FLAT FIELD FROM END TO END WITH THE EXTRA WIDE ANGLE VIEW AND 1.25" SLOT.

PLEASE STATE 7MM OR 4MM WHEN PLACING ORDER - EACH EYEPIECE COST -

   Flattener comes with adapter for Digital Camera.

This revolutionary new WO AFR-IV Adjustable Flattener / 0.8x Reducer was made for 500-1000mm refractors.

The Super-Transmission-Coated with 2-element lens system was designed and produced by William Optics, the inner flattener lenses can be set at the optimum 66mm-86mm back focus distance (Distance from flattener lens to film or CCD plane).

Ultra High Dielectric 99% reflectivity. Precision 1/10 lambda surface with NEW (15mm thickness mirror) for best quality.

2"- 1.25" adapter with brass clamping ring, also includes (2 thumb screws) at 120 degree apart for safe secure locking.

If what you are looking for is the highest achievable brightness, contrast and sharpness during critical observations with high-end instruments, Dura Bright diagonal is designed for high-end scope such as FLT-98, FLT-110 and FLT-132. .

Versatile Saddle Plate comb for Astro-Physics mounts ( EQ-900 , EQ-1200 ) and Losmandy mounts ( GM-8,G-11 ). It fits other compatible mounts, such as William Optics' old GT1 or Eazy Touch Alt-Az Mount.

This is a COMBO (dovetail plus saddle plate) If you are interested in the saddle only, or dovetail only, check the appropriate entry in WOnline shop. If you require a Vixen-style dovetail, check the Vixen-style Dovetail.

1.25 Binoviewer with anti-marring compression rings 2x W.A. (66 deg.) 20mm Eyepieces. 1.6x Barlow nosepiece corrector for easier focusing with most telescope.

Optional 1.25" extender nose piece and 2x Barlow OCS are available separately for customers with special focusing needs.