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Excerpts from Ethos 21mm Review in SkyNews!

Todd Carlson: "More 100-Degree-Eyepiece Choices". SkyNews, (Jan/Feb 2010).

The massive Tele Vue 21mm Ethos eyepiece is the longest focal length available in the company's 100-degree-field-of-view eyepiece series. The Ethos line is setting the standard for high-end eyepieces.
As with all other focal lengths in the Ethos line, the 21mm has a comfortable 15mm of eye relief. And, not surprisingly, this new eyepiece performs as exceptionally as do its Ethos siblings.
In my 12.5-inch f/4.8 PortaBall reflector, the 21mm Ethos provides a magnification of 72x and a stunning 1.4-degree field of view. I enjoyed the best view of M31 that I've ever seen though this telescope, with tight stars at the edge of the field. And the wispy tentacles of the Orion Nebula extend almost to the edge of the field of view, affording a unique and detailed view of the nebula.
The 21mm Ethos in the 11-inch SCT provides a 0.74-degree field of view at 133x, a magnification I prefer for many deep-sky objects.
My observing partner and I enjoyed beautiful views of the Perseus Double Cluster, an open star cluster that, in my opinion, loses its beauty when observed through the SCT's typical narrow field of view.
When the 21mm Ethos was used in a Tele Vue 76 refractor, the resulting magnification of 25x and the humongous four-degree field of view provided an outstanding view of the Pleiades star cluster floating in a star-rich field.
While the 21mm Ethos excelled in the short-focal-length refractor, it was most impressive when used with the SCT — so much so that I'm going to christen this focal length the "SCT-Ethos." SCT owners are no longer restricted to relatively low magnification to enjoy a comfortable field of view.
This latest member of the respected Ethos family fits the tradition set by the previous five.

Ethos: Ultimate in Widefield Observing!

Complete review of Ethos line from Astronomy Technology Today Nov/Dec 2009

Ethos 21mm: 1st Warranty Card Comments

Tele Vue Thanks Cloudy Nights Readers!

For the 3rd Straight Year Ethos Wins Cloudy Nights: Gear of the Year Award!
Ethos 21-and-10mm

Tele Vue would like to thank Cloudy Nights forum members for voting our Ethos 21-and-10mm 100° eyepieces to the top-spot in the annual search for "the best dang products of the last year."

Here's what Cloudy Nights had to say: "This is the third year running that Tele Vue has stolen the crown – and again with it's Ethos line of eyepieces. Our forum members handily voted the 21mm Ethos into the top gear spot for 2009, but they didn't stop there. The 10mm made the cut as well. The 21mm just barely squeaked into 2009, but when it landed, it landed with a splash. Yours truly was lucky enough to review one for the BBC: The Sky at Night magazine, and frankly – well, it's one of the best eyepieces this widefield junky has ever had the privilege to use."
— Tom Trusock, Reader's Choice: Gear of the Year - 2009, Jan. 22, 2010

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