Tele Vue 12mm 1.25" 72° field Delos


Availability: More on the way

The 12mm TeleVue Delos eyepiece gives you the optical quality of the acclaimed TeleVue 13mm Ethos eyepiece, simply with a somewhat narrower field, but with longer eye relief for eyeglass use, and for little more than half the price of the Ethos . . .
Our Product #: TD12
TeleVue Product #: EDL-12.0
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Product Description

The 12mm TeleVue Delos puts the performance of the acclaimed TeleVue 13mm Ethos eyepiece - high contrast, a neutral color balance, and full field sharpness - into a 72° field eyepiece with a long 20mm eye relief that makes it ideal for eyeglass wearers. The majority of eyepieces in this focal length range tend to have a shorter eye relief that often makes them somewhat iffy for eyeglass use, but that is not an issue with the Delos. With a long 20mm of eye relief, its full 72° apparent field is easily usable for those who wear glasses to control their astigmatism. Even if you don't wear glasses to observe, the Delos is simply a comfortable joy to use.

You can see how wide your actual field of view will be when you use this Delos with your telescope by using the eyepiece field calculator under the "formula" tab above.

There is an adjustable height eyeguard with a soft rolldown eyecup to shield the eye from ambient light (from a neighbor's security light, for example) and improve the image contrast. The eyeguard height can be locked in place at any point desired. The Delos can be used with TeleVue Dioptrx astigmatism correcting lenses, should you choose to observe sans eyeglasses.

As a longer eye relief/modestly higher power 72° field version of the acclaimed 100° field 13mm TeleVue Ethos, the 12mm Delos has the performance virtues that astronomers have come to expect from an Ethos - well-controlled astigmatism, field curvature, lateral color, angular magnification distortion correction, and low pupil sensitivity (kidney bean effect) for daytime use.

The 12mm Delos has a 1.25" barrel that is threaded for standard 1.25" eyepiece filters. A safety groove is machined into the chrome barrel to engage your focuser thumbscrew. This will help prevent the eyepiece from falling should the thumbscrew accidentally loosen while observing. The main eyepiece barrel is narrow enough to allow most observers to use a pair of 12mm Delos in a binoviewer. Rubber grip rings provide a sure grip in cold weather when wearing gloves or mittens. Dust covers are provided for both ends of the eyepiece.

Tech Details

Barrel Size 1.25"
Eye Relief 20mm
Field of view 72
Focal Length 12mm
Weight 14.4 oz.
Warranty Limited Lifetime


Review by:
I purchased this eyepiece about a week ago and received it quickly from Astronomics. It’s a seriously awesome eyepiece that fit my astigmatism well with the added dioptrx corrector lens that I also purchased. The view of the moon last night was crystal clear, the 12MM gave amazingly zoomed in details but the FOV was large enough to fit a huge portion of it into the eyepiece. Overall a great addition to my collection!!! (Posted on 3/27/2021)
Review by:
This is a great eyepiece - probably my favorite. I wear glasses so the long eye relief is a requirement. Sharp and works well for globs with the AP155. (Posted on 10/4/2019)
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