|A comparison of the TS SP 6mm and other eyepieces - by an amateur astronomer
I do not have very much experience yet, but I try a quick comparison:
In this night the seeing conditions were excellent (1-2 on the usual scale). The telescope was a GSO Newtonian 200/800mm.
The first eyepiece was the Antares 5.7mm W70. Already during a short earth observation I recognized its "nervous" viewing position. This was confirmed during plantary observation. Looking not exactly in the center of the eyepiece the border constantly came into the field of view. The fun of observation suffered noticeably. In addition the sharpness towards the edge was unsatisfactory. So away with it.
Next came the BAADER Eudiascopic 5mm. The viewing was noticeably smoother. In addition the sharpness of the image nearly up to the edges and the brightness were very good. I could easily recognize the Cassini division in the rings of Saturn. The moons were pin-point. The eye relief is good (no crawling into the eyepiece is necessary).
Finally I took the TS SP 6mm out of the the eyepiece case. Contrary to the first planet observations, with which I had been disappointed a little, the TS showed almost no weaknesses in this evening. The image of Saturn was absolutely clear before my eye. Cassini division and moon showed as recognizable with the BAADER. Image sharpness was almost as good as the Baader eyepiece. The viewing comfort is similarly good, only the eye has to get closer for viewing the entire field of view. In this evening I realized how important the seeing really is.
As an unprejudiced beginner I had actually expected substantially larger differences between the eyepieces. If I had to make a ranking, the ANTARES would be the last by far. The BAADER maybe would have earned the first place in terms of quality, but regarding the large price difference I would prefer the TS SP.
(My first thought about the eyepiece case was that it was a typical marketing gag. However, now I became aware how much money I saved with it.)
By the way, the impressions described above were also confirmed by my 12 years old son..
Reinhold Scheibner - 8 March 2005