I use this eyepiece with my f4.8 Dob mostly. I Purchased it for 2 reasons. 1) I needed an eyepiece that would do well in a fast scope.  2) It was advertised as weighing only 8 oz. I have really put this eyepiece through its paces. Earlier this year untill now I used it a lot on globs and open star clusters like the Double, double. And there is one thing I like on the Double Cluster is good edge correction. The Siebert Optics 36mm was perfect all the way out to about a couple of % of the edge. I can live with that.  Some eyepieces I have used also give a milky background. I don't know if that is coatings or what but the Siebert Optics did well in this regard and gave very descent contrast. All in all this eyepiece did everything I wanted and would have been will to pay more for. If this eyepiece did not work out I would have purchased a Pan 35mm. So for the price I paid I will give it a 10.  

John Marshall

Pros

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Cons

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Rating

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