Binoculars & Telescopes › 40 mm › Accessory

Free Express Shipping! Tele Vue Plossl 40mm Eyepiece (1.25") 40mm Focal Length... Free Express Shipping! Tele Vue Plossl 40mm Eyepiece (1.25") 40mm Focal Length, 43° Apparent Field of View, 1.25" Diameter Barrel, Ideal for Fast Focal Ratio OTAs, Diffraction-Limiting High-Index Glass, Multi-Coated Optics with Blackened Edges,... more

Free Express Shipping! Celestron Omni 40mm Eyepiece (1.25") 40mm Focal Length,... Free Express Shipping! Celestron Omni 40mm Eyepiece (1.25") 40mm Focal Length, 43° Field of View, 1.25" Diameter Barrel, Fully Multi-Coated Optics, Non-Slip Rubberized Grip, Anodized Aluminum Housing, Fold-Down Eyecup more

Smithsonian 40mm Refractor Telescope w/Table Top Tripod Smithsonian 40mm Refractor Telescope w/Table Top Tripod more

The longest focal length in the 52° Series with the longest eye relief the 40... The longest focal length in the 52° Series with the longest eye relief the 40mm is also the only 2.0-inch O.D. eyepiece in this series. Explore Scientific now has three 40mm eyepieces in its collection the other two are the 40mm 62° Series and the... more

Description: Engineered with high quality and offering a generous apparent fie... Description: Engineered with high quality and offering a generous apparent field of view;perfect for lunar observations;medium sized star clusters; of cloudy nebulas and . Soft rubber custom fitted with a bayonet mount and folds down for the... more

SVBONY SV131 Eyepiece 1.25" (PLOSSL) PL Telescope Eyepiece 6/12/17/25/32/40mm ... SVBONY SV131 Eyepiece 1.25" (PLOSSL) PL Telescope Eyepiece 6/12/17/25/32/40mm 4-Element Design 48-Degrees Field of View more

NiteHog Viper 35 QR Adapter 40mm External Diameter at Objective Scopes Black N... NiteHog Viper 35 QR Adapter 40mm External Diameter at Objective Scopes Black NH004/40. Precise positioning mechanism The adapter is developed for thermal imaging clip-ons VIPER 35 and VIPER 50 Next with an excessive alignment to your day optical... more

The Celestron 40mm Omni Series 1.25 Plossl Eyepiece is a testament to superior... The Celestron 40mm Omni Series 1.25 Plossl Eyepiece is a testament to superior optical engineering offering amateur astronomers and stargazing enthusiasts a high-quality durable and versatile accessory for their telescopic endeavors. This eyepiece... more

Package Contents: 4 x pyramid prism Only the above package content other produ... Package Contents: 4 x pyramid prism Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement... more

Description: Features: brand new and high quality. Soft rubber can be folded. ... Description: Features: brand new and high quality. Soft rubber can be folded. Multiple diameter rubber eye guards eye shields. Durable in use. Eye cups for microscopes telescopes. Specifications: Product: Eyepiece Caps Material: Rubber. Color:Black.... more

Package Contents: 1 x pyramid prism Only the above package content other produ... Package Contents: 1 x pyramid prism Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed... more

Package Contents: 2 x pyramid prism Only the above package content other produ... Package Contents: 2 x pyramid prism Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement... more

2 PCS 40mm Dia. Rubber Eyepiece Eye Shield Eye Guards Eye Cups for Telescope M... 2 PCS 40mm Dia. Rubber Eyepiece Eye Shield Eye Guards Eye Cups for Telescope Microsocpe more

Night Vision NVG PVS31 Protection Eye Cups 40mm Rubber Eyepiece Eye Shields Bi... Night Vision NVG PVS31 Protection Eye Cups 40mm Rubber Eyepiece Eye Shields Binoculars Eye Guards Olympus Eyepiece Suitable more

Explore the depths of the night sky with the Explore Scientific 62 Degree 40mm... Explore the depths of the night sky with the Explore Scientific 62 Degree 40mm Long Eye Relief Argon-Purged Waterproof Eyepiece. Featuring a 1.57-inch focal length 2.00-inch barrel size and 1.11-inch eye relief this premium eyepiece provides a wide... more

Description The glass pyramid can creat rainbow in the sunlight works like and... Description The glass pyramid can creat rainbow in the sunlight works like and good optical effects.-large pyramid Can be used to meditate brightens up the energy and clears your mind.-pyramid optical prism Clear crystal that refracts light cheerful... more

Optical Glass Cube 12.7/15/20/25.4/30/40mm Beamsplitters Prism AR coating Semi... Optical Glass Cube 12.7/15/20/25.4/30/40mm Beamsplitters Prism AR coating Semi-Reflective Semi-Transmissive Splitting Prism more

Plossl Eyepiece Telescope Accessory 40mm Lens Fully Multi-coated for Astronomy... Plossl Eyepiece Telescope Accessory 40mm Lens Fully Multi-coated for Astronomy Telescopes with 1.25 Inch Focuser.Comes with sturdy plastic and rubber -protect the eyepiece from dust and moisture.Full metal soft rubber .4-Element Plossl design has a... more

Features: Brand new and high quality Essential: It is essential for friend. Us... Features: Brand new and high quality Essential: It is essential for friend. Usage: With its four-element optical set and high-transmission coating this eyepiece delivers clear with increased contrast. Suitable for: Perfect for astronomers and... more