Explore Scientific 52° Series 25mm Waterproof Eyepiece
Achieves superior light transmission sharp contrast, high resolution and crisp definition! Item Number: EPWP5225-01 Focal Length: 25mm Weight: 6.4oz
PRICE 129.99 SKU EPWP5225-01 BARCODE 811803030060 Explore Scientific 52° Series 25mm Waterproof Eyepiece EPWP5225-01
Features and Benefits
- Rubber Eye-Cup For Comfort
- Excellent Flat Field Multi- Element
- Transform Your Astronomy Experience
- Observe Deep Space With Ease
- Limited USA One Year Warranty when product is registered within 60 days of purchase
Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality, eye relief and value versus a comparably priced Plossl.
Another great benefit of these eyepieces is the excellent contrast and ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.
Long considered the “standard” eyepiece that is often supplied with telescopes that are sold by various suppliers, the 25mm focal length category is perhaps the most used eyepiece in the world. Like the 20mm, these eyepieces are great for binoviewer devices, and the 25mm is probably the longest focal length of the mid-power range eyepieces before you get into longer focal lengths.
||181.4 grams; 6.4 oz.
||1.25" O.D. / Double Taper
|Field Stop Diameter
||EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
|Lens Elements/ Groups
||4 Elements in 2 Groups; Edge Blackened
||Fits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI)
||O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
||Removable Flip-Down Style Soft Silicone Rubber
||Slide-on Top and Bottom
||Optical Glass; Aluminum; Steel; Silicone Rubber
||Laser Engraved: Focal Length; Series; Serial Number; Brand