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William Optics 90º 1.25" Erect Prism Diagonal - D-EP90-125

SKU: WYO-D-EP90-125

William Optics has discontinued the William Optics 90º 1.25" Erect Image Diagonal, and we are out of stock. Here is a link to the William Optics Diagonals we carry at High Point. Hopefully, you can find a proper replacement in this selection. If we can be of further assistance, please don't hesitate to call us at 1-800-266-9590 or send an email, and we will be happy to help you. Thank you!

William Optics 90º 1.25" Erect Image Diagonal


Introducing the high quality 1.25" 90 degree Erecting Prism Diagonal with helical focuser barrel, another superb product made by William Optics. Ideal for daytime as well as nighttime observing, this 1.25" diagonal goes well with any premium refractor.

Precision Prism

  • Image erecting BAK4 prism features anti-reflection coating.
  • Highly accurate with strong light reflection.
  • Helical focusing on the top barrel allows fine adjustment.


Superior Ingenuity

  • Interior is matte blackened and threaded to completely prevent internal stray light reflection.
  • Threaded for 1.25" filters.


Beautiful Finish

  • Complete black anodized aluminum for a smooth finish.