Quote:
Originally Posted by astro744
What were the other eyepieces in the several that you tried?
The 5th star in the Trapezium is relatively easy in that aperture even in poor seeing. The 6th is a better test for optics and mainly seeing. Increase the magnification until you see it.
The 10mm gives 82x mag. and the 3.5mm gives 235x mag. So yes there will be a difference in perceived contrast and sharpness. Compare a 9 or 11 mm Nagler with the 10mm Masuyama or better still a 10mm Delos or Ethos.
If I had an AP 130GT I would consider nothing less than something from the Tele Vue range probably Ethos, Delos or DeLite depending on apparent field and eye relief preferences (all relatively new designs) or Nagler and Panoptic (mainly Nagler as it covers full range of focal lengths in the relatively wide 82 deg. apparent field).
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Nagler 3.5 type 6, Nagler 9mm type 1, a cheap Meade 32mm Plossl mainly to help find Mars. I also have a UO 12.5mm which is quite good.
Greg.