Baader 2" Clicklock 90° Star Diagonal with Carl Zeiss Prism # PRISM-2Z 2456117

4.0 Baader 2 inch BBHS StarDiagonal

I purchased one of these several years ago from Agena when it was on sale... it's very well-made ... side-by-side comparison with the TeleVue Everbright 2 inch diagonal, which I think is the best star diagonal available, this Baader diagonal was slightly brighter but I felt the TeleVue provided a more even illumination across the field as well as slightly better contrast ...l the main difference is , whereas I use the Baader click stop 2 inch adapters on all my telescopes to hold the star diagonal securely , using it on the star diagonal as an eyepiece holder was problematic.... I found it difficult to insert and remove eyepieces and twisting it would move the telescope..... I found purchasing the smaller 34 mm Baader Zeiss norms" star diagonal body using regular 2 inch adapters worked better for me.... are use these in a Pentax telescope which required more in-focus travel, however since I sold the Pentax telescope I only use the Televue everbright star diagonal now....(I also own the Bader T2/32 mm prism which I use with 2 inch adapters, it works well with eyepieces such as the Nagler 22 mm T4 and I find on the moon and planets it has slightly better contrast, but I think the TeleVue unit is superior , I retain this for comparison at times or in case I buy another Pentax telescope.)

This review was provided courtesy of AgenaAstro.com