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Telescope & Microscope Accessories Categories
Best Choice Zopsc 
Telescope Microscope Accessories, M42 to M48 Coupling Adapter Aluminium Alloy M42 to M48 Coupling Telescope Photography Seamless Connection: With a seamless connection, M42 and M48 accessories can be connected together.Create idea 
Create idea 1 Pair Rubber Eye Cups Eye Guards Eyepiece Cover Compatible with 29-31mm Binocluar Microscope Telescope Eyep Enhance the viewing experience: These soft rubber eye shields are crafted to establish the optimal viewing distance betwLALAFINA 
LALAFINA Microscope Eyepiece Covers 2 Pack Rubber Eye Shields Protective Guards for Stereo Microscopes Lab Accessories P Core Protection: These microscope eyepiece covers serve as essential eye protective covers that shield your microscope eSVBONY 
SVBONY Universal Cell Phone Adapter Mount Telescope Phone Mount for Binocular Monocular Spotting Scope Telescope Support Fit eyepiece diameter 28mm to 48mm; compatible with microscope; telescope; binoculars; monocular; night vision and spottBest Value Apexel 
APEXEL 360° Telescope Phone Adapter, Upgraded Binocular Photo Adapter for Android & iPhone, Smartphone Mount for Telesco 【New Upgrade Design】APEXEL telescope phone adapter incorporates valuable opinions from our customers of the previous mod15% Off SVBONY 
SVBONY T2 T Ring Adapter and T Adapter 1.25 inch Metal for All Canon EOS Standard EF Lenses and Telescope Microscope Cam Compatable with SLR DSLR cameras photography;connect camera to telescope for direct;prime focus; photography convenienteMagTech 
eMagTech 4PCS Eyepiece Cover for 32-36mm Stereo Microscope Eyepieces Soft Rubber Eyepiece Eye Guards Cups Shield 2PCS Ob Package includes 2 pairs of eyepiece cover. 1 pair of oblique angle and 1 pair of flat angle.Generic Microscopes Equipment 2 PCS 40mm Rubber Eyepiece Eye Shield Cups Binoculars Eye Guards Caps for Microscope Eyepiece Tele Item Name: eyepiece eye cups for stereo microscope / binoculars telescopes.OZXNO OZXNO 2pcs Eyepiece Eye Cup/Guard Rubber Eyepiece Cover Scope Accessories for 32-36mm Stereo Microscope Telescope(Black) Size: The inner diameter is 36mm / 1.42inch.OZXNO OZXNO 2pcs Eyepiece Eye Cup/Guard Rubber Eyepiece Cover Scope Accessories for 32-36mm Stereo Microscope Telescope(Black) Size: The inner diameter is 36mm / 1.42inch.Veemoon Veemoon 4pcs Rubber Eyepiece Cups Telescope Eyepiece Cup Replacement Soft Eye Shields Enhanced Eye Protection Easy Insta Perfect compatibility: this rubber eyepiece for scope is a precise fit for telescopes, performing excellently as a microASHATA WiFi Electronic Eyepiece, 5MP 4K Video Recording Wireless WiFi Digital Eyepiece, Telescope and Microscope Accessories, P Easy Installation: This WiFi telescope camera eyepiece is designed for easy installation on any optical telescope. It fistarboosa Starboosa Smartphone Microscope Adapter Mount, Universal Phone Scope Mount, Work with Telescope Spotting Scope Microscop 【Easily explore nature】With this universal smartphone telescope adapter, you can connect your phone to a telescope or mistarboosa Starboosa Smartphone Microscope Adapter Mount, Universal Phone Scope Mount, Work with Telescope Spotting Scope Microscop 【Easily explore nature】With this universal smartphone telescope adapter, you can connect your phone to a telescope or miTEHAUX TEHAUX Microscope Slides, 50pcs Ground Glass Microscope Slides & 100pcs Pre-Cleaned Cover Glasses Transparent Microscope Frosted Design: The frosted edges of the slides allow for easy labeling and identification, making it simpler to organizUonlytech Uonlytech 2pcs Rubber Microscope Eyepiece Covers Soft Rubber Eye Cups 32-34mm Diameter Binocular Eye Guards Replacement quality: crafted with rubber eyecup and rubber eyepiece, our shield offers extraordinary flexibility and protection forAnneome Anneome 2pcs Rubber Eyepiece Covers Eye Guards for Stereo Microscope Binoculars Telescope Protection Rubber: made from rubber, these eyepiece guards are both durable and comfortable for extended use,binocular guard cups,mKESOTO kesoto Universal Cell Phone Quick Photography Adapter Mount Holder Clip Bracket for Microscope Binocular Monocular Spott Change Your Telescope Binocular Monocular Microscope into a Video Camera and Image CapturerJectse Black Plastic Mobile Phone Bracket for Binoculars Monoculars Telescopes, Compatible with Microscopes, Sighting Telescope Made of plastic material, lightweight and strong, long service life.Abaodam Abaodam 4pcs Rubber Eyepiece Covers for Microscope and Telescope Accessories, Black Rubber Material with Easy Installati Dust and scratch protection: the eyepiece cover for lab microscopes safeguards lenses from environmental damage, ensurinLAKWAR LAKWAR Telescope Phone Adapter, Universal Cell Phone Mount Compatible Binoculars, Monocular, Microscope, Spotting Scope, 【1 Minute to Set Up】Adopted Unique Design that is easy to align eyepiece and phone camera. You just need to take less thSENECESLI SENECESLI Telescope Phone Adapter, Universal Cell Phone Mount Fits Binoculars, Monocular, Microscope, Phone Adapter Moun Convenient Observation: Smartphone adapter for telescope allows you to observe comfortably with optimized viewing anglesUPALDHOU UPALDHOU Alloy 1.25 Inch Extension Tube Adapter Set for E Mount Camera, Perfect for Telescope and Microscope Photography [EFFORTLESS CONNECTION] Compatible with all standard 1.25 inch telescopes and microscopes for seamless integration.Celestron Celestron – Smartphone Photography Adapter for Telescope – Digiscoping Smartphone Adapter – Capture Photos and Video Thr This smartphone adapter connects your smartphone to a telescope, binocular, spotting scope, or microscope, so you can caCelestron CELESTRON CORE TELESCOPES 81055 Universal Smartphone Adapter NexYZ 3-Axis, Chrome/white (OPTICS ACCESSORIES) NexYZ connects your smartphone to your telescope, spotting scope, binocular, monocular, and microscope so you can capturGRIRIW GRIRIW 2pcs Microscope Eyepiece Protective Covers 32-35mm Plastic Rubber Eyecups for Telescope and Microscope Eyepiece A Versatile: suitable for both microscopes and telescopes, protecting eyes from light interference and enhancing viewing cstarboosa Starboosa Smartphone Telescope Adapter Camera Mount, Universal Phone Mount, Work with Telescope Spotting Scope Microscop For phone width range： 55～85 mm(2.16"～3.35"). Fit iPhone X/8/8 Plus/7/7 Plus/6/6s/6 Plus/5/5s - Fit Samsung Galaxy S9/S8Plyisty Telescope Electronic Eyepiece, 4K HD Digital Telescope Camera with 3 Inch Color Display, 5 Gears Digital Zoom, Support u High Resolution: With 4K HD resolution, this electronic eyepiece delivers stunning image quality, ensuring every detailJectse 10X Aluminum Alloy Wide Angle Microscope Eyepiece, Superior Optical Quality, Wide Field of View, High Eye Point, for Mos Durability and Performance: Built to last, our microscope eyepiece boasts robust construction and performance, deliverinTEHAUX TEHAUX Phone Telescope Holder Clip Mount Adapter for Smartphone Photography, Universal Scope Phone Camera Clamp for Home Versatile usage scenarios: perfect for capturing moments during sports events, concerts, bird watching trips, camping adVILLCASE VILLCASE 2pcs Rubber Microscope Eyepiece Covers Eyecup Eye Shields Eyepiece Guards Replacement Accessories for Binocular Great protection: reduces eye fatigue and glare, providing a clear and comfortable viewing experience,scope eye cup,rubbmoses moses. Expedition Natur 9837 Mini Telescope & Microscope, Explorer Accessories for Kids, Pocket Microscope and Pocket Te 2-in-1 outdoor tool ✓ Thanks to the practical researcher equipment, small adventurers always have a telescope and microsCelestron CELESTRON 8-24mm Zoom Eyepiece, 1.25" Telescope Accessory, Multicolor (93230) Zoom from low to high power in an instant with this versatile eyepiece!Compatible with any telescope that accepts 1.25"Celestron CELESTRON 8-24mm Zoom Eyepiece, 1.25" Telescope Accessory, Multicolor (93230) Zoom from low to high power in an instant with this versatile eyepiece!Compatible with any telescope that accepts 1.25"TEHAUX TEHAUX Rubber Eye Shields 29-32Mm Eyepiece Scope Caps Glare Reduction and Protective Eye Cups for Microscopes and Telesc Eyepiece covers: designed to fit a range of devices, these telescope eyepiece covers and microscope eye cups work with auxcell uxcell 42-46 mm Eyepiece Eye Cups, 2Pcs Rubber Eyepiece Cover Guard for Stereo Microscope Telescope Aiming Scope, Black Specification: Color: Black; Material: Rubber; Diameter: 44.5 mm / 1.75 inch; Inner Diameter: 28 mm / 1.1 inch; SuitableTotority Totority 2pcs Rubber Eyepiece Eye Cups Binoculars Eyepiece Cover Replacement for Stereo Microscope Telescope Eye Mask Th Material: constructed from rubber, these eyepiece guards provide durability and comfort,binocular eye guards,binocular eSVBONY SVBONY Metal Smartphone Adapter for Microscope Binocular Spotting Scope Monocular Telescope Adapter iPhone 6 6Plus 5s 4s SVBONY useful bracket allows anyone with a telescope and smartphone to take amazing celestial image;easily connect phoneifundom ifundom 4pcs Black Microscope Eyepiece Covers Flat Angle Eye Cups Replacement Shields for Stereo Microscopes and Telesco Reliable replacement solution: these eyepiece cover replacement parts are ideal for restoring functionality to damaged oNOLITOY NOLITOY 4pcs Rubber Microscope Eyepiece Covers for Microscopes and Telescopes, Sturdy Eyepiece Accessories with Enhanced Easy to use: quickly place or remove the eyepiece cover for stereo microscope within seconds, your maintenance routine a20% Off LEGO LEGO® Creator 3 in 1 Space Exploration Telescope 31378 STEM Toys - Building Toys for Kids - 3 in 1 Set with 3 Build Opti 3 IN 1 STEM TOY – LEGO Creator 3 in 1 Space Exploration Telescope (31378) building toy lets boys and girls aged 8 plus bLEGO LEGO® Creator 3 in 1 Space Exploration Telescope 31378 STEM Toys - Building Toys for Kids - 3 in 1 Set with 3 Build Opti 3 IN 1 STEM TOY – LEGO Creator 3 in 1 Space Exploration Telescope (31378) building toy lets boys and girls aged 8 plus bPyhodi Pyhodi Telescope Eyepiece, 92MP Electronic Eyepiece USB Microscope Camera Imager, Black, LED Light Source, ABS Material, TWO MODES OF Eyepiece support manual or automatic white balance, manual or automatic exposure, stainless steel metal casIpetboom Ipetboom Universal Microscope Phone Adapter Clip for Cell Phone Photography, Adjustable Single/Double Telescope Mount, C Phone holder clip--pull out the phone clamp and clip on your phone, adjust the handle to aim camera lens with the adapteASHATA Microscope Lens Cellphone Adapter, Microscope Smartphone Camera Adapter, Compatible with 23.2mm Eyepiece Tube, for Smart Clear Imaging: The microscope lens smartphone adapter is equipped with a 12.5x eyepiece, offering magnification up to 50NUZAMAS NUZAMAS Spotting Scope Smartphone Adapter, Telescope Phone Mounting - Compatible with Binocular Monocular Spotting Scope NUZAMAS Universal Mobile phone Telescope Adapter - With super large width range 52mm-100mm fit most phone series, eg, ApSHOWERORO SHOWERORO 4pcs Soft Rubber Eyepiece Covers for Microscopes and Telescopes Glare-reducing Comfortable Binocular Eye Cups Comfortable eye shield: the soft rubber eye shield of these astronomy accessories assure minimized eye fatigue, even dur28% Off BRESSER Bresser Deluxe Smartphone Adaptor for Telescopes and Microscopes with Wide Adjustment Range of Eyepiece Diameter and Fle The deluxe smartphone adapter allows you to take photos of celestial bodies, or preparations with your smartphone througAbaodam Abaodam Rubber Eyepiece Guards 2Pcs, Ergonomic Binocular Eye Cups for Microscope Accessories, for Lab and Field Telescop Eyepiece cover for stereo microscope--with the sturdy structure design, it can provide you good experience,rubber eyepieABOOFAN ABOOFAN 4pcs Stereoscopic Microscope Eyepiece Cover Guard Accessories for Telescope Scope Eyepiece Eye Shield Replacemen Enhanced viewing experience: the eyepiece guard minimizes external light interference, improving clarity and focus for bGeneric Microscopes Equipment 1PC Universal Mobile Phone Clip Accessory Bracket Mount Monocular Microscope Telescope Accessories Product Type: Other. Item: Phone Bracket.MOLIMOLLY Telescope Adjustable Phone Scope Mount, Smartphone Adapter Mount for Monoculars, Binoculars and Microscopes, Fit Almost Applicable to almost all smartphones on the market, you can observe and capture images through the mobile phone, and eveABOOFAN ABOOFAN 4pcs Rubber Eyepiece Eye Cups for Telescopes 1.25 Inch Universal Microscope Replacement Covers Protective Telesc Optimal viewing: the eyepiece guard for telescope reduces ambient light intrusion, making your dissecting microscope orGeneric Microscopes Equipment Eyepieces Telescope Accessories Full Vision 20mm Material: metal material. Size: standard 1.25 inch / 31.7mm telescope universal accessories. Focal length: 20mm.LUXUN LUXUN Universal Cell Phone Photography Adapter Smart Phone Adapter Mount-Quick Smartphone Adapter Holder Clip Bracket fo Fits eyepiece outer diameter from 38.5 to 43mm(1.5" to 1.7");compatible with microscope;telescope;binoculars;monocular;sSVBONY SVBONY Metal Adapter and T2 T Ring Adapter 1.25 inch Telescope Accessory for Cameras and Photography Dedicated CA1 Sleev Super easy to use;eyepiece put into the extended cylinder;then screw T adapter;T ring adapter and extended cylinder togeFainWan FainWan Digital Microscope Accessories 60 LED Adjustable Ring Light Illuminator Lamp for Stereo Zoom Microscope Installing to camera and microscope is very quick and easy to use. Adjustable screws to keep camera and microscope in plUPALDHOU UPALDHOU T Mount Microscope Adapter for F Mount Camera, Separable and M42x0.75 Design, Lightweight and Easy to Install, [PREMIUM ALUMINUM BUILD] Sturdy construction with anti-corrosion coating for enhanced longevity.Astromania Astromania T2 Female Thread to C-Mount Telescope Camera Adapter, Telescope Accessories can Easily Convert T2 mounting Po This adapter allows using C-mount cameras on telescopesAstromania Astromania T2 Female Thread to C-Mount Telescope Camera Adapter, Telescope Accessories can Easily Convert T2 mounting Po This adapter allows using C-mount cameras on telescopesXUMIUZIY Microscope Phone Adapter, Universal Cell Phone Mount with 12.5X Microscope Eyepiece, Microscope Lens Cellphone Adapter C Clear Imaging: The microscope lens smartphone adapter is equipped with a 12.5x eyepiece, offering magnification up to 50Lurrose Lurrose 2pcs Microscope and Telescope Eyepiece Guards Plastic Protective Covers 32-35mm Reusable Eyepiece Protective Cup Simple installation: easy to attach, can be quickly fixed onto the microscope eyepiece, offering convenience,microscopeXiangXin Adapter Ring Manual Aperture T2 T Ring Adapter Astronomical Telescope Extension Tube 1.25 Inch M42*0.75mm for Sony E Mou adapter cannot automatic focusing, adapter has no electrical connection and requires manual aperture and focusing settinMOVE SHOOT MOVE 3-Axis High-Precision Universal Digiscoping Adapter - Metal Holder/Mount Connecting Smartphone to Telescope Spotting Sco REVOLUTIONARY PRECISE 3-AXIS DESIGN: The telescope phone mount features 3-direction precise adjustment, up/down, left/riFUNNETOYU FUNNETOYU 2pcs Microscope Eye Shield Rubber Covers for Binocular Eyepiece Diameter Telescope Accessories Eyecups Replace Maximum eye protection: the microscope eye rubber offers toptier protection against dust, scratches, and light interferestarboosa Starboosa Telescope Adapter Camera Mount, Smartphone Holder, Work with Telescope Spotting Scope Microscope Monocular Bin Universal width range for telephone width range 55100 mm. Fit iPhone X/8/8 Plus/7/7 Plus/6/6s/6 Plus/5/5s - Fit SamsungSHINEOFI SHINEOFI 4pcs Microscope Eyepiece Covers Rubber Eye Cup Guards Flat Angle Scope Accessories for Lab and Educational Use Replacement parts: made with materials, these microscope eyepiece cup replacements are built to last, offering a reliablGeneric Microscopes Equipment 1.25 Inches Night Moth Series Astronomical Telescope Accessories Inch Planetary Frame material: aluminum alloy. Thread size: M28*0.6mm. Lens material: optical glass.TIKATARER TIKATARER Large Size Microscope PVC Dust Cover 800 X 650mm, Sturdy Microscope Dustproof Cover for Maintenance and Lab Wo 【Dust Protection】The dust cover is highly effective in eliminating the impact of dust on microscope optical imaging, ensRASTKY RASTKY Dual Tip Stainless Steel Lens Spanner Wrench, Professional Repair Opening Tool for Camera and Telescope Disassemb [ Material] Made of stainless steel with cnc processing for durability and .PACKOVE PACKOVE Industrial Eyepiece Eye Cup 4Pcs Rubber Replacement 1.25 Inch with Light Blocking Feature for Microscope and Tel Ergonomic performance: the microscope eyepiece protective cover is tailored from soft rubber, delivering ergonomic suppoApexel Apexel Handheld Digital Microscope, 800X with 2" LCD Screen, Portable Microscope | Telescope, Turquoise, LED Light Sourc 【800X Handheld digital Microscope】Choose from 5 magnification levels, ranging from 0 to 800x, providing flexibility forBATHVEVE BATHVEVE Rubber Eyepiece Cover with Ergonomic Design and Light Blocking 4pcs for Telescope and Microscope Eyepiece Repla No glare observation: the eyecup cover substantially blocks unwanted light, supporting microscope eyepiece protective coGosky Gosky Universal Phone Holder Compatible with Binoculars, Monocular Spotting Scopes, Telescopes and Microscopes, Fits Alm Useful accessories allow you to attach your Nikon cameras to the 1.25 inch eyepiece diameter telescope. (Fits Nikon D90,Zerodeko Zerodeko 4pcs Black Rubber Eyepiece Cups Replacement for Microscope and Telescope, Universal Compatibility, Enhances Com Versatile replacement parts: the eyepiece cup replacement parts are suitable for microscopes, telescopes, and binocularsCAXUSD CAXUSD 2pcs Microscope Eyepiece Covers: Rubber Telescope Eyepiece Caps - Eye Guards for 31-33mm Outer Diameter Stereo Mi High Elasticity: Crafted from rubber, the telescope eye piece holder can flexibly adapt to different eyepieces, ensuringHape Hape Adjustable Telescope 8x MAGNIFICATION TELESCOPE: Use this 8x telescope to get a closer look at distant objects when you’re out in nature or iHape Hape Adjustable Telescope 8x MAGNIFICATION TELESCOPE: Use this 8x telescope to get a closer look at distant objects when you’re out in nature or iZicojia Zicojia Children's Microscope Slides, Glass Prep Slides for Microscope Accessories Suitable for All Types of Microscopes Clean, clear and well-stained microscopes can be seen on stereomicroscopes, mini microscopes, pocket microscopes, and po15% Off LICAEVEY LICAEVEY WiFi Telescope Eyepiece Camera for Astronomy, 16MP Electronic Eyepiece, Beginner, Unisex, Black Astronomy Photography and 1080p Recording: Catch amazing 16MP photos and 1920x1080P HD videos with this telescope cameraGeneric Microscopes Equipment Practical Adapter Universal Easy Install Accessories Microscope Clip Professional Holder Telescope 24-38mm Microscope Telescopes Binoculars Monocular Metal Universal Photography Mount for Mobile Phone Connection AdapterJINdanju JINdanju Astronomy Telescope Microscope Universal Smartphone Handheld Slit Lamp Adapter Connect to Mobile Phone Secure Locking Mechanism:Elastic base quickly and securely locks phones in place, preventing during use.FUNNETOYU FUNNETOYU Scale Miniature Telescope Dollhouse Accessory Safe Tiny Telescope for Desktop Decor Realistic Home Model Ornam Educational accessory: features a telescope accessory to help about astronomy in an engaging way,mini for ,mini dollhousJoyzan Joyzan Camera Lens Tool, Removal Wrench Metal Spanner Sets Opening Lenses Repair Wrenches Pointed Telescopes Tools Wrenc Double Head Design: The camera lens removal wrench tool features a double head design, metal camera lens spanner tool wiTEHAUX TEHAUX 4pcs Rubber Eyepiece Eye Cup Replacement for 1.25 Inch Stereo Microscope and Telescope Eyepiece Cover Set, Soft L Effective protection: lens protector acts as both a barrier and cushion, keeping delicate telescope eyepiece cup componeGeneric Microscopes Equipment 5PCS/LOT M28 M28*0.6mm Glass 1.25 Inches Planetary Astronomical Telescope Accessories Thread size: M28*0.6mm. Frame material: aluminum alloy.jojofuny jojofuny 2pcs Microscope Eye Shield Binocular Rubber Eyepiece Covers for Microscope Telescope Use Outer Diameter for Bin quality: crafted with rubber eyecup and rubber eyepiece, our shield offers extraordinary flexibility and protection forifundom ifundom 4pcs Rubber Binocular Eyepiece Covers for Telescopes and Microscopes, Protective Eye Cups to Reduce Peripheral D Binocular eye cup: featuring soft rubber eyepiece cushions, these binocular eye cup covers minimize glare and peripheralGeneric Lab Microscope Slides Optical Astronomic Erecting Lens 1.25" 1.5X Newtonian Reflective Astronomical Telescope Accessorie Connection Interface: 1.25inch 31.7mmXUMIUZIY XUMIUZIY WiFi Telescope Camera Eyepiece, Wireless Electronic Eyepiece Camera with 2.8in Screen & 2MP CMOS Sensor, 1080P STRONG BATTERY LIFE AND FAST CHARGING: This portable WiFi eyepiece is equipped with a 650mAh battery, which can supportDpofirs Wireless WiFi Electronic Eyepiece, 4K Telescope Camera with 5MP CMOS Sensor, 6H Battery for Astrophotography Bird Watchi Easy Installation: This WiFi telescope camera eyepiece is designed for easy installation on any optical telescope. It fiJeffergarden Jeffergarden Flexible Plastic Cell Phone Support for Photographic Support for Astronomical Telescopes, Black Light and durable: made of plastic material from this cell phone support is light but strong, ensuring a long service liMOBUTOFU MOBUTOFU Small Phone Mount Phone Holder Plastic Lightweight Black Microscope Photography Adapter for Smartphone Telescop Microscope mobile phone adapter:good workmanship, excellent texture, smooth and comfortable hand feeling, and strong strLAPOOH LAPOOH Microscope Telescope Eyepiece Camera WiFi Electronic Eyepiece 4MP for Bird Watching Portable Spotting Scope Camer Universal Compatibility: Fits any optical telescope or microscope with an eyepiece diameter of 24mm-50mm.Simply rotate tGosky Gosky Universal Phone Holder Compatible with Binoculars, Monocular Spotting Scopes, Telescopes and Microscopes, Fits Alm 1. Fully Metal car window mount - deal for those with 2 cameras or a camera, spotting scope and big size binoculars (adaGeneric Microscopes Equipment 2 Inches 2X Apochromatic Extender, Group 4 Piece Astronomical Telescope Accessories Product model: 2 inches 2X apochromatic extender. Type: Apochromatic extender. Structure: 2 groups 4 pieces. Product coaGeneric Microscopes Equipment 1.25in Astronomical Telescope Accessories Made of high quality alloy and optical glass material, sturdy, durable and long service life. Solve the reflection problLAPOOH LAPOOH Microscope Telescope Eyepiece Camera WiFi Electronic Eyepiece 4MP for Bird Watching Portable Spotting Scope Camer Universal Compatibility: Fits any optical telescope or microscope with an eyepiece diameter of 24mm-50mm.Simply rotate tICON Group International, Inc. The 2013 Import and Export Market for Parts and Accessories for Microscopes and Diffraction Apparatus Excluding Optical Generic Microscopes Equipment 40mm Astronomical Telescope Accessories Professional Parts Eyepiece Focal Length: 40mm. Eyepiece Field of View: 43 °.