Lenses

Tele Vue 4x Powermate 2 Inch with 1-1/4 AdapterThese Powermates are a better choice for 2 diagonals than Barlows since they are nearly Parfocal.

Tele Vue 2.5x Powermate 1-1/4 InchThese models stand less than 3 out of your focuser and the 5x take 1? threaded filters. They are parfocal in ALL 1? diagonals and prisms.

Carl Zeiss Abbe Eyepieces continue to be regarded as the finest astronomical eyepieces ever made. Around 1995 Carl Zeiss produced a very limited number of a newly designed matching 1.

Tele Vue 5x Powermate 1-1/4 InchThe 5x Powermate is ideal for long focus CCD and film photography magnifying about 7.7x. It's an attractive high performance alternative to eyepiece projection.

Tele Vue 2x Powermate 2 Inch with 1-1/4 AdapterThese Powermates are a better choice for 2 diagonals than Barlows since they are nearly Parfocal.

Tele Vue 3x Barlow 1-1/4 InchOffered in 2x and 3x magnifications these 1? Barlows perform identically. Simply choose either or both based on your eyepiece collection.

The Baader Planetarium VIP Modular Barlow is a complete high quality 2X photo-visual barlow system. The VIP (VIsual and Photographic) barlow is ingeniously designed for functionality and flexibility.

Tele Vue 2x Barlow 1-1/4 InchOffered in 2x and 3x magnifications these 1? Barlows perform identically. Simply choose either or both based on your eyepiece collection.

Tele Vue 2x BIG Barlow 2 Inch with 1-1/4 AdapterOffered in a 2x magnification the Big Barlow is ideal for Newtonian scope owners. It will be parfocal with both 2 and 1? eyepieces in this application.

About Spy Optics The Spy brand was created by the passion of a group of over-achieving athletes and enthusiasts seeking a new visual perspective on technical eyewear products.