Explore Scientific 68° Series Eyepieces
Choose: 16mm (1.25Choose: 20mm (1.25Choose: 24mm (1.25
Choose: 28mm (2Choose: 34mm (2Choose: 40mm (2

Explore Scientific 68° Series Eyepieces

  (3 Reviews)
✓ 2 year warranty


2x in stock shipped 1-2 working days

About this product

Model:  es_68_24mm
Part Number:  0218624

These modern eyepieces with Super-Wide 68° Apparent Field Of View are an excellent choice for telescopes f5 or higher. 

Low dispersion glasses with high refractive index and anti-reflection multilayer coatings on all air-to-glass surfaces provide maximum light transmission and high contrast. Blackened lens edges and internal baffling also enhance contrast and minimise ghosting from internal reflections. 

Sealed waterproof construction and an Argon gas-purged interior protect the eyepiece from rain or dew and and eliminates internal condensation to ensure the optics remain pristine. 

Removable and foldable soft silicone-rubber eyecup for comfort and convenience and a tapered nosepiece provides peace of mind (the eyepiece is less likely to fall out of the focuser). 


  • Super-Wide 68 degree Apparent Field Of View
  • Waterproof construction for protection against rain, dew and dust
  • Argon gas-purged eliminates internal condensation 
  • Enhanced Multi-layer optical coatings for maximum contrast
  • All surfaces multicoated for maximum light transmission
  • Blackened lend edges to reduce ghosting and increase contrast
  • Long eye-relief - good for eyeglass wearers
  • Parfocal - little or no refocusing required when changing to another eyepiece from the same family
  • Foldable silicone-rubber eyecups

Eyepiece Field of View Simulator


Product Code021861602186200218624021862802186340218640
Eye Relief11.9mm15.3mm18.4mm21.6mm26.4mm31mm
Field Stop Diameter18.2mm22.8mm27.2mm31.8mm38.6mm45.5mm
Barrel Size1.25” / 31.8mm1.25” / 31.8mm1.25” / 31.8mm2” / 50.8mm2” / 50.8mm2” / 50.8mm
Barrel Length23.5mm23.5mm23.5mm31mm31mm31mm
Lens Groups444444
Height (From end of barrel)39.5mm48.3mm55mm62.5mm73.5mm86.5mm

Customer reviews

Average Rating (3 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Explore scientific..say no more!
13 April 2020  | 

Another lovely eyepiece from Explore Scientific.
Crisp 2 inch eyepiece that adds further flexibility to my current collection.
Received in perfect condition and within promised time frame from Anne and the team at FLO.
Great job FLO, and a great price!

Rating (max 5):  
Excellent quality
31 March 2020  | 

This EP is amazing - it provides good eye relief, wide field of view, and pin point images with really good contrast. I have it coupled with my Skywatcher Evostar ED80 and rarely use any other EP now. The quality is excellent and it’s well presented in an Explore Scientific box with a soft "velvet like" bag. This is one of those purchases that makes you feel like the cat that got the cream. I have no hesitation in recommending this to others. Thanks to FLO for the fast shipping.

Rating (max 5):  
27 April 2018  | 

Very very good eyepieces on my 200mm f6 newton.
I have the 28mm and the 16mm. They are both very sharp almost to the edge, expecially the 16mm.
Don't be scaried, if you don't use eyeglasses the eye relief of the 16mm is more than enough, actually much more comfortable than a plossl or an ortho.
They barlow very well and the 16-20mm are ones of the very few medium f.l. widefield eyepieces without an internal barlow.


Please fill in the form below to ask a question.

Please add the two numbers