Reviews - Celestron Oxygen III Narrowband Filter - 1-1/4in 93623 Reviews - CI-TA-Oxg3-Filters-93623

Author: Richard Mooney , I have loved astronomy since I was a kid. After retirement from the military I decided to get a nice telescope to to guide me through the heavens for years to come. I have since seen many sights, and have optics planet to thank for their quality product, from Wichita Falls, TX on Feb 25, 2010
Pros:  easy to thread, works great, unobstructed view
Cons:  none that I can think of really.
Would recommend:  yes

Richard Mooney wrote:

I was wanting to get an oIII filter to catch great views, trouble was, they were all too expensive, and I was worried about quality, you know, cheaply made glass, cheaply coated optics, and anything else that would detract from a proper view of nebulae, which happen to be among my favorite targets.

Author: Hawks53 (verified customer) , Skywatcher, from Ramona, OK on Jan 7, 2009
Pros:  All good
Cons:  None that I can find
Would recommend:  yes

Hawks53 wrote:

First nite of use on Celestron 8" SC brought me GREAT vues of Orions Nebula.

Author: Tim Hortaridis (verified customer) , EE and Amateur astronomer., from Tampa, FL on May 16, 2008
Pros:  Brings several nebualae into view
Cons:  Darkens field just a bit.
Would recommend:  yes

Tim Hortaridis wrote:

This is a great filter for viewing emission nebulae. This filter easily doubles the size and greatly increases contrast on several dozen nebulae. I would recommend this filter if you live in a light polluted area. The only con would be that it darkens the field somewhat so I recommend this filter for anyone using a 4" refractor/6" reflector or larger scope.