Quote:
Originally Posted by TimboS
Thanks Scott, but, for point 2, what would be the order of Barlow quality from the listed types? I presume, even going on just price, that the Deluxe 2x is best of the list.
Also, I presume UHC = ultra high contrast and to avoid constant threading on and off I need one filter per eyepiece. ?
Further, ignoring price for just a moment:
|
IMO
Ultrascopic=Deluxe>Shorty PLus>Shorty
From my experience the ultrascopic is very similar if not the same as the Deluxe performance wise (ie very good IMO) - they have the same baffling.
For UHC filters, given they can cost $100+, most make do with 1 (maybe 2 - of diff. sizes). A 2" filter can normally be attached to the bottom of the 1.25" adaptor in the focuser so can be used easily with multiple 1.25" EPs, or can (obviously) be attached directly to a 2" EP. 2" filters are however normally somewhat more expensive than 1.25" filters.
Another way around the hassle of constantly changing filters is to use a filter slide, which on a reflector would be fitted inside the OTA and when needed you slide the filter in its holder across in front of the focuser drawtube bottom...