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Old 21-08-2012, 05:17 PM
Krumlov (Gavin)
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Krumlov is offline
 
Join Date: Nov 2010
Location: Brisbane, Australia
Posts: 27
Planetary EP...again?

Hello all,

Has been a few months since I last posted and am still getting used to my GS-680 8" dob.

I am however thinking about getting a new EP to view the planets. The supplied GSO super plossls (6mm/9mm/25mm) have been OK but I am keen to see more detail on the planets. For example, Saturn is bright but I can see no detail on the planet or any division in the rings (is it just me?). Jupiter I can just see a few feint bands. I have an Astrosystems laser collimator and think I have done a reasonable job with it.

I have searched widely for information on the "best" but often the threads go off on a tangent about a particular EP rather than detailing the pros and cons and what difference you would see from each EP. If anyone read ausastronomer's post in the Pentax-Nagler shootout thread that is what I am after.

So I have short listed the following although after doing more reading I am wondering if the Pentax is not the "best" for planetary (and if it is is it 4x better than the TMB?). I look forward to the comments:
Pentax XW 10mm FOV 70 ER 20mm $305
Baader Hyperion 8mm FOV 68 ER 20mm $185
TMB Planetary II 8mm FOV 58 ER 15mm $74
BST Explorer 8mm FOV 60 ER 13mm $74

Also I have a GSO 2.5x barlow that I plan to use in conjunction when conditions allow.


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