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Denkmeier - D21 Eyepiece Pair - DISCONTINUED


Discontinued Product

Manufactured by:

Denkmeier - D21 Eyepiece Pair - DISCONTINUED


Specifications: Available Focal Lengths: 21mm 1.25 inch Eyepiece Barrel format 65 degree AFOV Fully Multi-Coated on all air to glass optical surfaces for ultra-high-efficiency transmission High Index Japanese Glass utilized 20mm Eye-relief Black anodized aluminum housings and barrels with rubber knurl Laser engraved logo Optional Vaults are black anodized aluminum with laser engraved logo Rotating batwing Eye-Guards Weight: 8 oz each Full one-year warranty

Product Series

The Top-Rated New Denkmeier Eyepieces Our D21 Eyepieces have been designed specifically with binoviewing in mind. Over one year in the making, users are raving about the awesome contrast delivered by way of our super multi-coatings. We use only the finest Japanese raw glass for these and each optical surface of the lenses are carefully examined for passing Denkmeier Quality Control in our Maryland, USA facility and then assembled as a pair and finally tested in a Denkmeier Binoviewer before being shipped to the customer. Superb and accurate machining of all of the anodized aluminum housings mean perfect image merges every time. ...well, they certainly break new ground when it comes to protective storage of your cherished Denk Eyepieces. We consider them just about 'Meteorite Proof'. The 20mm eye relief and 65 degree field of view provide an amazing porthole-like effect. They are specially designed to provide maximum illumination with our Power x Switch Systems.

Features Of Denk Eyepieces Denkmeier Eyepieces utilize Special High Index Glass elements and are Fully Multi-Coated on all air to glass surfaces. The eyepiece bodies include rubber knurling for secure gripping. They are black anodized and laser engraved with our Denkmeier Logo. The special lightweight barrels are black anodized and the world's first rotating batwing eye-guards are standard on every eyepiece. This allows the eye-guard to be properly positioned by the user after the binoviewer SCD Holders are turned for fine focus. Sporting 20mm eye-relief, eyeglass wearers may fold the eye-guards down and a soft rubber rim remains to ensure that eyeglass lenses are never accidentally scratched by the eyepiece top surface. The very large 65-degree apparent field of view (AFOV) provides amazing wide field vistas. Outstanding color correction makes Lunar and planet viewing a joy. Incredible contrast for Hydrogen Alpha Solar Viewing is the result due to our outstanding coatings. The edge illumination is optimized when using SCTs, Refractors or Newtonians with our Power x Switch Systems as compared with other long focal length wide-field eyepieces. Each Denkmeier Eyepiece includes a plastic protective bolt case and also includes plastic eye and field lens caps.

Additional Information

Name Denkmeier - D21 Eyepiece Pair - DISCONTINUED
Model EPP-D21
Discountinued Yes
Custom Stock Status Out of Stock
Eyepiece Apparent FOV 65
Eyepiece Apparent FOV2 0
Eyepiece Barrel Size 1.25"
Eyepiece Eye Relief 20
Eyepiece Eye Relief 2 0
Eyepiece Field Stop 0.0
Eyepiece Focal Length 21.0
Eyepiece Focal Length2 0.0
Eyepiece Elements 0