Vixen Optics HR Eyepiece 2.4mm

Vixen Optics HR Eyepiece 2.4mm

Brand: Vixen Optics

Regular price $319.99 On Sale

Estimated Arrival: Between Nov 18 and Nov 21. * ETA for USA only

Shipping & Returns: Fast Shipping. Free Returns. All The Time.

Why Buy From Stella Scopes

The HR 2.4 mm Eyepieces are designed for observation of subtle differences of the surface of the planets. The high resolution eyepiece deliver breathtaking, superb images with extremely high level of definition and contrast.

"Their high precision build, over-the-top attention to light suppression and scatter and contrast, comfortable eye relief, very positive focus snap, and uncompromising views make it, in my humble opinion, an optical and engineering work of art." -William A. Paolini Oct 6, 2016

■ Approx. 100% Strehl ratio on the axis
The resolving power outperforms similar eyepieces designed for planetary viewing. The HR-series maintains
more than a 97% Strehl ratio to the edge of the field of view when combined with a Vixen AX103S refractor.
In comparison, the ratio is about 90% with the use of a standard LV2.5mm eyepiece.

■ Suitable for Newtonian telescopes with fast primary mirrors
The HR-series work extremely well with the Vixen R200SS as it has the ability to correct coma aberration. Even at the edge of the field of view, the HR-series have a 93% Strehl ratio. In comparison the Strehl ratio with use of the LV2.5mm falls rapidly as the viewing object is moved toward the edge of the field of view. The ratio is only 93% at a
fifth from the center and 0% at the edge. Conventional eyepiece specifications merely show the performance
when an object is put in the center of the field of view of the eyepiece. As a result, the resolving power
declines as you move toward the edge of the field of view. The HR-series are best suited for observing the
surface of the moon to extend your view to the entire field of view.

■ Simple 5 elements in 3 groups lens design
While most eyepieces are constructed from 7 or 8 lens elements, the Vixen HR-series are constructed with
a 5 lens elements design to achieve the largest possible transmission of light. The absorption and reflection
of light are virtually eliminated.

■ Enhanced light transmission characteristics
The Vixen AS-coating achieves extremely high light transmission of 99.9% per lens surface. It is applied
to each of the surfaces to deliver extremely high contrast images.

■ Complete stray light correction
The grooved lens frame construction contributes to the reduction of stray light. The inside of the eyepiece is
perfectly threaded and blackened to prevent deterioration of the image from stray light. The inner baffle rings
effectively stop any stray light. Even a hint of reflection which might occur on the tip of the sleeve is eliminated.

■ Quality product that is Made in Japan.


Barrel 1.25"
AFV 42°
Eye Relief 10mm
Weight 4.8oz
Coating  AS-Coated

Product Guarantee

At we stand behind every purchase that we make 100%. If for any reason you are unsatisfied with your purchase. Simply send the item back to us unused in it's original packaging within 30 days of it's delivery.

Extensive Manufacturer Warranty

All of our manufacturers offer very generous warranty coverage of the products sold through our store. Based upon which brand is purchased that item is also covered from defects in workmanship and quality.

Explore Scientific: 

  • Explore FirstLight Branded Products: Limited USA One Year Warranty.
  • Explore Scientific Branded Telescopes: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
  • Explore Scientific Branded Eyepieces: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
  • Explore Scientific Branded Non-Electronic Telescope Accessories: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty

Levenhuk: All Levenhuk telescopes, microscopes, binoculars and other optical products, except for accessories, carry a lifetime warranty against defects in materials and workmanship; all accessories have a 6-month warranty. This warranty does not cover consumable parts, such as bulbs (incandescent, LED, halogen, energy-saving and other types of bulbs), batteries (rechargeable and non-rechargeable), electrical consumables, etc.

Vixen Optics:Every Vixen telescope, astronomical binocular, and mount is warranted by Vixen Optics to be free of defects in materials and workmanship for a period of 5 years from the date of original purchase in the U.S.A. and Canada. Five year warranty covers all non-electrical/mechanical parts. Electrical parts are warranted for 1 year from date of purchase.