Explore Scientific 68° Series Eyepieces

£100.00

(3 Reviews)

✓ 2 year warranty

Product description
Specifications
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About this product

Model: es_68_16mm
Part Number: 0218616

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).

EYEPIECE FEATURES

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

Specifications

Model	16mm	20mm	24mm	28mm	34mm	40mm
Product Code	0218616	0218620	0218624	0218628	0218634	0218640
Eye Relief	11.9mm	15.3mm	18.4mm	21.6mm	26.4mm	31mm
Field Stop Diameter	18.2mm	22.8mm	27.2mm	31.8mm	38.6mm	45.5mm
Barrel Size	1.25” / 31.8mm	1.25” / 31.8mm	1.25” / 31.8mm	2” / 50.8mm	2” / 50.8mm	2” / 50.8mm
Barrel Length	23.5mm	23.5mm	23.5mm	31mm	31mm	31mm
Waterproof	Yes	Yes	Yes	Yes	Yes	Yes
Lenses	6	6	6	6	6	6
Lens Groups	4	4	4	4	4	4
Height (From end of barrel)	39.5mm	48.3mm	55mm	62.5mm	73.5mm	86.5mm
Width	44mm	54mm	62mm	69mm	79mm	94mm
Weight	151g	256g	370g	515g	1050g	1236g

Customer reviews

Average Rating (3 Reviews):

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Rating (max 5):

Explore scientific..say no more!

13 April 2020 | Philip

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 | Matthew

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):

Great!!!

27 April 2018 | Riccardo

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.