Certified Refurbished
![[Refurbished] Cat 51 WIFD](http://williamoptics.com/cdn/shop/files/Redcat-51-perspective-1.jpg?v=1708412637&width=2400)
![[Refurbished] Cat 51 WIFD](http://williamoptics.com/cdn/shop/files/Redcat-51-perspective-3.jpg?v=1737282060&width=2400)
[Refurbished] Cat 51 WIFD
Sale price$699.00 USD
Regular price$798.00 USD
![[Refurbished] Zenithstar 61 II](http://williamoptics.com/cdn/shop/files/Z-61-II-perspective-1-gold.jpg?v=1708437295&width=2400)
![[Refurbished] Zenithstar 61 II](http://williamoptics.com/cdn/shop/files/Z-61-II-perspective-1.jpg?v=1706492514&width=2400)
[Refurbished] Zenithstar 61 II
Sale price$399.00 USD
Regular price$498.00 USD
![[Refurbished] RedCat 61 WIFD](http://williamoptics.com/cdn/shop/files/Redcat-61-perspective-1.jpg?v=1708427445&width=2400)
![[Refurbished] RedCat 61 WIFD](http://williamoptics.com/cdn/shop/files/Redcat-61-perspective-3.jpg?v=1737282523&width=2400)
[Refurbished] RedCat 61 WIFD
Sale price$1,038.00 USD
Regular price$1,098.00 USD
![[Refurbished] RedCat 51 MK2.5](http://williamoptics.com/cdn/shop/files/Redcat-51-IIU-pers-1.jpg?v=1731395719&width=2400)
![[Refurbished] RedCat 51 MK2.5](http://williamoptics.com/cdn/shop/files/Redcat-51-IIU-pers-3.jpg?v=1731395731&width=2400)
[Refurbished] RedCat 51 MK2.5
Sale price$598.00 USD
Regular price$865.00 USD
![[Refurbished] Ultra-Cat 108](http://williamoptics.com/cdn/shop/files/C-108-pers-1.jpg?v=1744703888&width=2157)
![[Refurbished] Ultra-Cat 108](http://williamoptics.com/cdn/shop/files/C-108-pers-3.jpg?v=1749700266&width=2400)
[Refurbished] Ultra-Cat 108
Sale price$3,248.00 USD
Regular price$3,598.00 USD
![[Refurbished] Pleiades 111 Astrograph](http://williamoptics.com/cdn/shop/files/Pleiades-111-pers-1.jpg?v=1706955654&width=2400)
![[Refurbished] Pleiades 111 Astrograph](http://williamoptics.com/cdn/shop/files/Pleiades-111-pers-2.jpg?v=1706955654&width=2400)
[Refurbished] Pleiades 111 Astrograph
Sale price$3,399.00 USD
Regular price$3,798.00 USD
![[Refurbished] WhiteCat 71](http://williamoptics.com/cdn/shop/files/Redcat-71-BW-pers-1.jpg?v=1742537690&width=2400)
![[Refurbished] WhiteCat 71](http://williamoptics.com/cdn/shop/files/Redcat-71-BW-pers-3.jpg?v=1742540521&width=2400)
[Refurbished] WhiteCat 71
Sale price$998.00 USD
Regular price$1,398.00 USD
![[Refurbished] Pleiades 68 Astrograph](http://williamoptics.com/cdn/shop/files/Pleiades-68-perspective-1.jpg?v=1708502606&width=2400)
![[Refurbished] Pleiades 68 Astrograph](http://williamoptics.com/cdn/shop/files/Pleiades-68-perspective-3.jpg?v=1708501362&width=2400)
[Refurbished] Pleiades 68 Astrograph
Sale price$1,599.00 USD
Regular price$1,998.00 USD
![[Refurbished] Zenithstar 81 WIFD](http://williamoptics.com/cdn/shop/files/Zenithstar-81-perspective-1.jpg?v=1716282905&width=2400)
![[Refurbished] Zenithstar 81 WIFD](http://williamoptics.com/cdn/shop/files/Zenithstar-81-perspective-3.jpg?v=1716282905&width=2400)
[Refurbished] Zenithstar 81 WIFD
Sale price$648.00 USD
Regular price$999.00 USD