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Message: <blockquote data-quote="FrankD" data-source="post: 3591764" data-attributes="member: 18544">No star test yet Henry so, yes, we could chalk up my experience with the scope as being unit specific. Will try do so tonight or tomorrow.All of the usual optical characteristics I look for (apparent sharpness, apparent brightness, contrast, CA control, edge performance, etc...) are certainly agreeable up to a point in the magnification range. Then there is a drop off where I expect to see more detail than what is presented. Eye positioning also seems to be a bit more critical than what I am accustomed to with either of the Opticron models.They eyepiece has 15x printed on one end of the zoom range and a 45x on the other end. There are three white "dots" at regular intervals between the two numbered settings. It is from the last dot up to 45x that I see the drop off in performance.My initial opinion is that they attempted to do a little bit "too much" with just the one eyepiece. They went for a specific magnification range (more typical of 60-65 mm scopes) but wanted to keep a variety of optical characteristics at a certain performance level (thinking CA control, edge sharpness, etc...). The compromise is in how easy the eye placement is, the somewhat lower level of performance at the magnification level mentioned above and narrower apparent field of view.</blockquote>