Pentax SMC XW 5mm Eyepiece (1.25")

Ex-Show Stock,Very Tatty Box,Hence Price As a fully VAT registered company we will supply you with a full VAT Invoice PRICE INC. VAT and have 12 Month Warranty when registered with PENTAX UK    Pentax eyepieces are a near consensus choice amongst serious amateur and professional astronomers as the best that's out there, quite an accomplishment indeed given the fervent passion of the collective.   Pentax eyepieces are JIS Class 4 waterproof, rather impressive    The XW line represents an even further improvement upon the venerable XL series.  The apparent field of view has been expanded to a whopping 70°, but remarkably this was achieved without reducing their impressive eye relief of 20mm. There are eyepieces available with wider apparent viewing fields, but to take advantage of that wider field you'll have to be much closer to the eyepiece.  This isn't exactly conducive to extended observing sessions.  Additionally, there are lesser eyepieces with similar claims of 70° apparent viewing fields, but the performance upon the edge of these eyepieces isn't on par with the Pentax's. If you're using a telescope with a fast aperture, this is of particular importance.   These are large and expensive eyepieces, but that's the price to pay for such an enviable combination of viewing field and eye relief. Buy the best once, and you'll still be enjoying the quality long after you've forgotten the price. Should you ever need to painfully part with your purchase, the best always has the most liquidity on the used market because they're rarely ever offered.   Continuous helicoid eyecup design gives perfect eye relief for all Accepts conventional 1.25" diameter filters for astronomical and terrestrial applications   Key Features:  70° Apparent Field of View 20mm Eye Relief Waterproof & Fogproof     Package Contents:   Pentax SMC XW 5mm Eyepiece (1.25") Push-On Front & Rear Caps Plastic Helicoid Case