Description
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.
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.
Specifications
| Item Number | EPWP5225–01 |
| Focal Length | 25mm |
| Length | 67.7mm |
| Width | 43mm |
| Weight | 181.4 grams; 6.4 oz. |
| Barrel Size/Type | 1.25″ O.D. / Double Taper |
| Eye Relief | 16.4mm |
| Field Stop Diameter | 18.2mm |
| Coatings | EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces |
| Lens Elements/ Groups | 4 Elements in 2 Groups; Edge Blackened |
| Filter Thread | Fits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI) |
| Waterproof | O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes |
| Eyecup | Removable Flip-Down Style Soft Silicone Rubber |
| Lens Caps | Slide-on Top and Bottom |
| Materials | Optical Glass; Aluminum; Steel; Silicone Rubber |
| Markings | Laser Engraved: Focal Length; Series; Serial Number; Brand |
Limited USA One Year Warranty when product is registered within 60 days of purchase. Click Here to register.
Fast Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel will pack each item according to our strict requirements. Before they are shipped, your goods will be thoroughly examined and secured. Everyday, we send to thousands of clients in different countries. This is a sign of our determination to become the largest online retailer globally. The warehouses and centers for distribution are in Europe, as well as the USA.
Note that orders containing more than one item will be processed according to the specific item.
Before shipping before shipping, we'll inspect thoroughly the items you've purchased. Most orders are delivered within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
The inventory is always changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. Therefore, the actual inventory could change at any time. It's possible that your order will be unable to fill when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer an exchange or refund.
In order for your item to be returned it must be in its original packaging, unopened and in the same condition as when you received it in. It must also be in its original packaging.
Related products
Observing Aids
Observing Aids
Filters
Mount Accessories
Filters
Solar Accessories
Astrophotography Accessories
Filters
Filters
Astrophotography Accessories
Mount Accessories
(Discontinued) Cable, USB to RS-232 Converter (18775) Celestron
Observing Aids
Astrophotography Accessories
0.72x Quad Telecompressor Corrector for 155f7 EDFS Astro-Physics
Plates and Rings
Solar Accessories
Filters
Eyepieces
Eyepieces
Observing Aids
Astrophotography Accessories
Filters
