Providing performance at a reasonable price for most beginners, the Explore Scientific 15mm Eyepiece 52° Series 1.25"produces a moderate power in most telescopes, and is a perfect addition to your observation arsenal.

Outfitted with a generous 52° apparent field of view, it employs a flat-field lens system that is treated with their proprietary Enhanced Multi-Layer Deposition (EMD) coatings to produce bright and clear views that are flat edge-to-edge. This lens design makes this eyepiece ideal for averted viewing techniques in which you view dim deep sky objects, such as wispy nebulae, indirectly using the portion of the eye that is most sensitive to light.

This model of the 52° series is offered here with a standard 1.25" barrel to make it compatible with the most popular size drawtubes and accessories. The eyepiece is argon-filled and O-ring sealed to be waterproof against condensation and dew and resistant to fogging. A textured collar provides a slip-resistant grip, especially in cold weather or while wearing gloves. A fold down rubber eyecup makes it comfortable and easy to view through, with or without eyewear.

15mm Focal Length    52° Apparent Field of View    1.25" Diameter Barrel    Fully EMD Multi-Coated Optics    Argon-Filled, Water and Fogproof    Slip-Resistant Textured Surface    Fold-Down Eyecup

Related Questions and Answers

Q: 1. The Sky-Watcher Evo 100ED and the Sky-Warcher 80ED both have Synta 96mm OT attachments for a focuser. Is this a 96mm focuser?

A: The Explore Scientific APO EDT Series Rack & Pinion Focuser (2") is not a 96" focuser.

Q: 2. Will this focuser fit an 86.4 OTA?

A: The Explore Scientific Crayford Style Focuser for APO EDT Series Telescopes (2") will only fit Explore Scientific brand APO EDT series telescopes.

Q: 3. Can this be used on the Sky-Watcher Evo 100ED?

A: Yes this would be compatible with your Sky-Watcher EvoStar 100mm f/9 Doublet APO Refractor (OTA only).

Q: 4. Does this fit on Explore Scientific FirstLight 127mm f/15 Maksutov-Cassegrain Telescope ?

A: This will not work on the Scope you referenced.

Q: 5. I need to know 2 things: what is the maximum it is designed for ?[in pounds/ounces, or grams] (i have a suitable mount. Secondly, as I hope to retrofit this to an existing OTA, what is the minimum length when racked fully in?

A: This 2" Crayford Style Focuser from Explore Scientific is a dual-speed focuser that comes with the APO EDT series telescopes, and is sold here as a spare part or replacement. It is not intended for use with any other brand or model telescope.

Q: 6. Will it work with Meade ETX 125

A: Yes it is compatible with the Meade ETX 125.

Q: 7. What is the Outside Diameter of this focuser where it hooks to the telescope? Wanting to replace a bad focuser and need one 3.5" in diameter for the connection.

A: The Diameter of the Explore Scientific APO EDT Series Rack & Pinion Focuser (2") is 3 inches, so it won't fit a 3.5 ".

Q: 8. Can this be used on the Sky-Watcher Evo 80ED?

A: The Explore Scientific APO EDT Series Rack & Pinion Focuser (2") BH #EXFOCEDAPORP • MFR #FOCEDAPO-RP can be used with the Sky-Watcher EvoStar 80mm f/7.5 Doublet APO Refractor

Q: 9. Is the 2" barrel threaded for the use of filters?

A: Yes, this eyepiece accepts all 2" threaded filters.

Q: 10. How many elements, in how many groups?

A: It has six elements in four groups.