Help me choose which Tele Vue Delos to buy!
Posted 06 July 2014 - 09:01 PM
Purpose: 80% Visual, 20% Astrophotography (Afocal)
Current Eyepieces: 7mm Pentax XW, 13mm TV Nagler T6, 24mm TV Panoptic, 31mm Baader Aspheric (Will be exchanged for a 2nd 13mm Nagler for Binoviewer, since it only has an AFOV of 55 degrees with the 1.25" adapter).
I want to add a Delos and maybe a 10mm Ethos down the line.
Do I get a 17.3mm Delos?
F/10 - w/2x Barlow - w/2.5x Powermate - w/Focal reducer/6.3/945mm
Pentax XW 7mm 215x - 3.5mm/430x - 2.8mm/535x - 135x
TV Nagler 13mm 115x - 6.5mm/230x - 5.2mm/288x - 72x
TV Delos 17.3mm 86x - 8.65mm/173x - 6.9mm/217x - 54x
TV Panoptic 24mm 62.5x - 12mm/125x - 9.6mm/156x - 40x
Would this have been the ideal setup?
Posted 06 July 2014 - 11:06 PM
I use low power eyepieces to frame large objects or multiple objects in the same field. In this regard the Ethos excels. I use high power to observe detail in small objects. For this the near optical perfection of the Delos is great.
So personally I would flip your potential selections and get a 17 Ethos and a 10 Delos.
I much preferred the 17 Ethos over the 17.3 Delos at that focal length simply because of the expansive field of view. The 10 Ethos/Delos is a much harder choice and personally I would be happy with either. I settled on the Delos because there seems to be something so pure about the view it puts up, plus I prefer the ergonomics of the Delos as the magnification increases.
Posted 07 July 2014 - 11:24 AM
Posted 07 July 2014 - 12:01 PM
I have a 7mm, 13mm, and 24mm, if I were to get a 10mm Ethos which Delos would you get? You guys are going to make me buy the 10mm Delos...I see it happening
Posted 07 July 2014 - 03:31 PM
Posted 07 July 2014 - 04:58 PM
Both are excellent and you can't lose with either one.
The 10mm XW will be a bit cheaper on the used market though.