Siebert Optics - 2" Binoviewers

35mm and new VP 40mm CA. With T- 2 or standard 2" You CAN get the T- 2 and a thread on 2" base optionally. The units have 1.25" eyepieces holders. They are only ones of their kind and part of the Echelon series of binoviewers.

35mm and new 40mm Clear Apertures are by far the biggest Binoviewers in the 1.25" format. Also very light at 1.2 lbs Making them the lightest 1.25" bino with few exceptions.

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This mode is an extra $150 and makes the Echelon and Elite binoviewers interchangeable with a 2" diagonal eyepiece holders. It comes with a 2" nose piece that threads in place for normal use in a dob or unmodified diagonal.

Eye spacing from 45mm-83mm gives it the greatest Interpupilary range of any binoviewer on the market.

You WILL get much better total illumination with a 35mm or 40mm CA. To compare to other Units. (Click Here) And the New VP 40mm. Specs on the 40mm are better yet at the bottom of this page.

The use of first surface diagonal mirrors will eliminate almost any possibility of reflections that prisms can create and also eliminate chromatic aberrations. These units have custom made optics and have the spec's to outperform any bino in planetary and deepsky use. Try a set of my 1.25" Ultra Plus 24mm SWA eyepiece's for the ultimate 1.25" DS view. Low mag correctors in the 1.3x, 1.5x and 1.8x range are available.

All other 1.25" eyepieces in the Ultra and Ultra Plus series will be given $20 off a set of eyepieces

Here at the bottom are the details for the New VP Echelon binoviewer..

This is the 40mm VP Echelon.

Info on Self Centering Double Diopters Adjusters and how they work.

The VP vs Televue nosepieces removed.

It will "transform" the way you look at the Heavens.

And to finish it all off use these finely finished Delrin top caps

And now a model that takes 2" eyepieces. Will Illuminate 35mm WA ep's

Siebert VP binoviewers are for those who want more aperture then is presently available on the market elsewhere. And not pay more. How does this binoviewer differ from the 35mm Echelon on this page. #1 It has a different look from the 35mm Echelon with it's custom made look. But that's where the disadvantages end.

The VP will come in either Prisms or optional mirrors . Both will be based on a 40mm beam splitter with a lower Clear Aperture of 40mm and 33mm+ CA at the top. You can get it in a T- 2 base or standard 2" mount or optionally both. Optical path in the prism based units will be around 150mm giving it by far the best "CA vs OP" ratio of any binoviewer on the market.

The closest being AP Baader 28mm CA and 114mm OP. This means in an SCT with the VP you will get 100% illumination out to a 27mm field stop vs. Baader's 16mm full Illumination at the field stop.

The 40mm beam splitter and prisms are dielectric 99%, as are the optional mirrors. The units will have Self Centering Diopters standard on both sides. The 40mm CA at the bottom will make it necessary to have either a T- 2 or 2" base although having 1.25" eyepieces holders. It will be lighter in weight then most 1.25" binoviewer on the market.

The best thing is its price. At $799 you are in the lower premium binoviewer price range. The Baader compared above although not matching it's CA/OP specs is over $1600 new or almost double the price. So this makes the Siebert VP unique in it's or any price range.

Do I think you will like it? The specs no doubt. The pictures will show that although having ALL the features commonly associated with compensation free IPD adjustment style binoviewers that are the standard in terms of ease of use. The Appearance will be a departure from the norm. This was certainly true of the Black Knight Echelon and Elite series although they held to the traditional basic shape of today's binoviewer. But a lot of considerations were juggled to make these the biggest CA and the keeping the weight down. They have no extra housings superimposed to give it the look of symmetry. That has been dropped from these in favor of what will be more important considerations. Here are the considerations in one sentence.

The biggest CA, the shortest Optical path and in the lightest most compact package possible.

Did I mention the finest optics and building materials.

. A lot of cosmetic touches have been added to these to give them a beauty all their own. The T- 6 Aluminum and black Delrin composites are very tastefully done to make these binoviewers an attractive novelty.

You may reserve one and will not be billed until shipping time. Clear Skies.