Orion MegaVista 16.8mm

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Brand and Model:Orion MegaVista 16.8mm
Price ($USD):Discontinued
Type:Misc Wide Angle
Focal Length:16.8 mm
Barrel Size:1.25 in
Apparent FOV:70.0 degrees
Field Stop Dia.:0.0 mm
Eye Relief:16 mm
Weight (lbs):0.5

Vote Highlights Vote
Orion MegaVista 16.8mm
How can you not love a 10 year old eyepiece that still performs as well as anything currently available in the ~17mm range.

Overall Rating: 10
Optics:10 Value:10
Weight: 1 (Unreliable Vote)
By: Anonymous (xxx.xxx.94.154)
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=351397

Orion MegaVista 16.8mm
One of those rare, classic, superb eyepieces that, even a decade after its introduction, still stands up to comparison to much more expensive currently available hardware. Works well even on fast optical systems, has excellent edge performance and contrast. If you can find someone silly enough to sell one, pounce on it.

Overall Rating: No Vote
Optics:10 Value:10
Weight: 1 (Unreliable Vote)
By: Anonymous (xxx.xxx.25.207)
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=47448

I bought my 16.8 Megavista about 1991 and wouldn't part with it now.  I recently heard that these were actually built by Takahashi.   Whatever...it's a gem.

Orion MegaVista 16.8mm
Although these can't compete with Naglers in field of view or edge sharpness, they're about 1/3 the price. Too bad they're not available anymore. Edge sharpness does suffer near the field stop, but not bad for a $120 eyepiece with a 70 degree apparent FOV. The eyepiece also has a reasonable weight and won't upset most DOBs. I've used this in scopes as slow as F-8 and as fast as F-5, so I can't comment on how it will perform with other F-ratios. I've noticed no false color, but light transmission and contrast was better on an old Edmund 20 mm Erfle (the Erfle had much worse edge aberrations). All in all, an excellent eyepiece for the money that will beat older TeleVue widefield eyepieces of the same focal ratio.

John O'Hara

Overall Rating: 8
Weight: 1 (Unreliable Vote)
By: Anonymous (xxx.xxx.245.67)
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43577

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