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Explore Scientific 24mm 68 degree field waterproof 1.25" eyepiece, EPWP6824-00
This new 68 degree 24mm Explore Scientific is an excellent low to medium power wide field eyepiece with an unusual benefit. It is O-ring sealed and nitrogen-purged to be 100% waterproof. This prevents internal fogging in the eyepiece; keeps the interior dust-and fungus-free; and makes it easier to clean, as there is no risk of excess cleaning solution getting trapped between the lenses. Many observers feel that a 68 degree field eyepiece like this Explore Scientific hits the ısweet spot" between the affordable, but ılooking down a tube" view of conventional 45ı-50 degree field eyepieces, and the full-immersion, but very expensive, observing experience of an ultra-wide field 82 degree or 100 degree eyepiece.
While the 24mm Explore Scientific is particularly well-suited to observing with Dobsonian reflectors and fast focal ratio refractors (it provides a big 5.3mm exit pupil for rich field observing on an f/4.5 Dobsonian, for example), it provides ıpicture window onto space" images with any telescope type and is a superb eyepiece to replace the so-so 25mm or 26mm that is usually supplied as standard equipment with many new scopes.
You can use the calculator below to see just how wide the field will be with your particular telescope. For example, it will give you a 1.43 degree field at 48x with a 10" f/4.5 Dobsonian, more than enough to take in all of the Pleiades at one time. This gives you over five and a half minutes of uninterrupted observing with such a scope while an object drifts from one side of the eyepieceıs flat field to the other. Thatıs plenty of time for multiple observers to look at the same object, or for you to absorb as much detail as possible, before having to reposition the scope.
The eye relief of this six lens/fully multicoated optical system is 18mm, foe essentially unvignetted views for those with severe astigmatism who must wear eyeglasses while observing. The eyepiece has a soft fold-down rubber eyecup and comes with dust covers for both ends of the eyepiece.
This is an excellent eyepiece for observing galaxy clusters, framing emission nebulas with the black of space, observing the nebulosity around the Pleiades, etc. The 24mm Explore Scientific waterproof would be a welcome addition to any serious deep space observerıs eyepiece collection.
The 68 degree Explore Scientific eyepieces will start shipping in August. They may be in short supply at first, so preorders will be shipped in sequence according to the date that we received your online or telephone order. Preorders will not be charged on your credit card until the eyepieces have been received and are ready to ship. We will post images as soon as they are available.
This individually serial numbered Explore Scientific eyepiece is backed by a limited one year warranty, which is extended to five years when the eyepiece warranty is registered with Explore Scientific within 60 days of purchase.
Field of view 68 degree
Eye Relief 18mm
Focal Length 24mm
Number of optical elements 6
Barrel Size 1.25"
Warranty 1 year
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