Post by Dragon Man on Mar 10, 2015 12:14:47 GMT
After giving the Meade SN10 a test run and being very dissappointed with it I realised that I hadn't given my Saxon (Skywatcher) 120mm f/5 Achromat a fair run. I have used it many times as can be seen in my website, but never with the Wratten #12 Yellow filter to clean up the Violet Fringing.
So last night I gave it a good run for 6 hours broadcasting the test Live on Night Skies Network with quite a few viewers giving their thoughts and asking questions.
Well, even though it was an 85% Moon the results were still fantastic.
The Moon did wash out a lot of objects but the test was really to test the elimination of the Violet Fringing with the #12 filter.
I am very pleased with the results
This 120mm f/5 gives me a faster wider FOV than the 6" f/5 Achro. The FOV with the 0.58x Focal Reducer is 1 degree. Just how I like it.
The camera is a Mallincam Xtreme with standard Class 0 sensor, the focal reducer is my home made 0.58x, and the filters are a GSO Wratten #12 Yellow and an Astronomik 'L' UV/IR filter.
I took Screen Grabs from the Live Broadcast, and all are totally NON post-processed. They are straight off the screen during the broadcast.
The 85% Moon, while a hindrance to DSO's was an excellent target to test for not only Violet Fringing elimination but also Chromatic Aberration elimination.
See the results for yourself:
So, in summing up, I am very pleased with the results.
This Cheap Achromat now gives views comparable with an ED scope.
So last night I gave it a good run for 6 hours broadcasting the test Live on Night Skies Network with quite a few viewers giving their thoughts and asking questions.
Well, even though it was an 85% Moon the results were still fantastic.
The Moon did wash out a lot of objects but the test was really to test the elimination of the Violet Fringing with the #12 filter.
I am very pleased with the results
This 120mm f/5 gives me a faster wider FOV than the 6" f/5 Achro. The FOV with the 0.58x Focal Reducer is 1 degree. Just how I like it.
The camera is a Mallincam Xtreme with standard Class 0 sensor, the focal reducer is my home made 0.58x, and the filters are a GSO Wratten #12 Yellow and an Astronomik 'L' UV/IR filter.
I took Screen Grabs from the Live Broadcast, and all are totally NON post-processed. They are straight off the screen during the broadcast.
The 85% Moon, while a hindrance to DSO's was an excellent target to test for not only Violet Fringing elimination but also Chromatic Aberration elimination.
See the results for yourself:
So, in summing up, I am very pleased with the results.
This Cheap Achromat now gives views comparable with an ED scope.