Explore Scientific 82° N2 Eyepiece 24mm (2")

Product code: 218824
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Explore Scientific 82° N2 Eyepiece 24mm (2")
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.

The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.

All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
24mm Argon purged high performance eyepiece with 82° apparent field
  • Waterproof, Argon purged and sealed against dust
  • Very large and sharp 82° field
  • EMD-fully multi-coated with blackened lens edges
  • All eyepieces of this series are parfocal
Focal length (mm)
Eyepiece Barrel Diameter (mm)
Rubber eyecups, foldable
Length of the eyepiece barrel (mm)
5 stars based on 1 review
Paul Needley
from Tring

Explore Scientific 82° N2 Eyepiece 24mm (2")

I have a CPC 11” SCT and I have been mulling over getting into the 2” eyepiece ‘scene’ for a while. The obvious impediment is the price of these monsters. I did a lot of reading and watched the now ubiquitous you tube videos about the benefits of the wide degree eyepieces and finally decided to go for it.

The eyepiece itself is a hefty bit of kit and you will need a ‘scope that will be able to take it. I have a fork mount so I don’t have to worry too much about balancing or worrying about the worm gear getting overwhelmed.

The eyepiece is well made and unlike so many things these days (plastic etc) it feels good in the hand and psychologically it helps you come to terms with the price. The Luminos equivalent is cheaper but I didn’t like the hand grenade look of it (psychology again).

First light for this creature was on the 22nd March 2020 - the first proper clear night in what seems ages. Because I have a large SCT I use a focal reducer (Celestron f6.3) for deep sky and since there were no planets up (yeah Venus, but very bland) this was part of the set up on this occasion.

I use the star sense Auto align and there was absolutely no issue with the scope coping with the weight at the back of the scope (this eyepiece plus the 2” diagonal). I was outside for about 4 hours and the scope never lost its alignment - so weight is not an issue for the larger ‘scopes.

So what about the view? The optics are excellent a clear, crisp image all the way to the edges. I won’t bore too much with a catalogue of objects viewed, but in particular NGC 869, NGC 884 - Double Cluster was spectacular.

The effect of the 82° and the optics is to flatten the image out, this for me was like making a window. The eye relief is so good that you have no trouble at all looking around the image. It really does feel like you are looking out of a window.

It’s worth the price and does what it says it will do. Everyone will know the problem with eye relief especially on the 1.25” eyepieces, this eyepiece really does do away with it.

The guys at TAC are very helpful and if you want to know anything further give them a call. As I said I suspect there will be a point where some smaller scopes won’t be able to take the weight, they will let you know if it’s not for you.

Brand Explore Scientific
Condition New
Product Code 218824