William Optics 50mm Right Angle Correct Image Finder

William Optics 50mm Right Angle Correct Image Finder

  (1 Review)
✓ 2 year warranty


3x in stock shipped 1-2 working days

About this product

Model:  wo_m_f50ii_tg
Part Number:  M-F50IITG

New from William Optics! A unique 50mm finder OTA with a 90-deg erecting prism diagonal with helical focuser providing a right angle correct image. Use many standard 1.25" eyepieces* to get the magnification and field of view you like! Available in a choice of 3 colors to complement your William Optics or other scope.

Optical Features

  • Fully multi coated 50mm f/4 (focal length = 200mm) achromatic objective
  • 90-deg high-quality erecting prism diagonal included
  • Provides 10x magnification with a 20mm eyepiece or 8x with a 25mm eyepiece; will provide 5.7 deg field of view with 24mm, 50-deg AFOV reticle eyepiece (Eyepieces sold separately)

Mechanical Features

  • 1.25" diagonal features helical focusing with Xmm (X") of focus travel
  • Diagonal / eyepiece are rotatable
  • White powder painted with excellent fit and finish that are the hallmark of every William Optics product

Mechanical Specifications

  • Tube diameter = 54.6mm (2.15"); Dewshield diameter = 58.1mm (2.29")
  • Tube weight (without eyepiece) = 21.9oz (620g)

Finder Bracket

  • Not included; sold separately

* Note not all eyepieces will reach focus in this or any other finder due to the limited focus travel range. Finding a compatible eyepiece that reaches focus may require some trial and error. This is an issue with any finder/spotting scope/guide scope that can accept external eyepieces, and not just with this item.

Customer reviews

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Super finder
20 December 2021  | 

Bought this to replace Astro Essentials finder (which I was not very impressed with and sent back). Much more expensive than AE but really high quality with great optics. Highly recommended if you want a 50 mm finder.


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