Olivon Eyepiece

[LDW1]

I have a chance to buy a 2” / 1.25”, 13mm, 70° Olivon ep for $75 Canadian in like new condition ! Does / has anyone owned one of these and if so what was their experience / opinion of it ? The price sure seems right !

[John]

2 hours ago, LDW1 said:

I have a chance to buy a 2” / 1.25”, 13mm, 70° Olivon ep for $75 Canadian in like new condition ! Does / has anyone owned one of these and if so what was their experience / opinion of it ? The price sure seems right !

I have a hunch that these Olivion eyepieces are very similar / the same optically as the Skywatcher 70 degree UWA range:

http://www.opticalvision.co.uk/astronomical_accessories-eyepieces/skywatcher_swa-70_dual-fit_eyepieces.html

I found this thread on the Cloudynights forum which discusses the Olivions:

https://www.cloudynights.com/topic/452112-olivon-70-deg-eyepieces/

For $70 probably a "good buy".

[Louis D]

I have the 13mm, 17mm, and 22mm AT AF70 versions.  The 22mm is stupendously good.  The 17mm starts to show lateral chromatic aberration, but has a flat field mostly free of astigmatism.  The 13mm has about double the chromatism of the 17mm, but is still mostly flat and astigmatism free.  $70 is a decent price for the 13mm, just be aware that you'll see lots of pretty rainbows starting around 70% center to edge on bright objects.

I actually like the 12mm Meade HD-60 better at this focal length.  Eye relief is about the same, it lacks edge chromatism, has a bit more field curvature that can be focused out, and has some unobtrusive edge astigmatism.  The apparent field of view is narrower, but more usable.