Best Objective Lens Diameter

AmScope A40X 40X (Spring) Achromatic Microscope Objective

  • This brand new 40X (spring) Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.
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AmScope A10X 10X Achromatic Microscope Objective

  • This is a brand new 10X Achromatic microscope objective lens with high quality.
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Visionking Telescope 3 Inches Newtonian Telescope for 76 300mm Reflector Astronomical Beginners

  • Objective lens diameter: 76 mm(3 inches).
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Levenhuk Bruno Plus 20x80 Powerful Astronomy Binoculars with Fully Multi-Coated Lenses and Sealed Body Construction

  • Powerful high-aperture astronomy binoculars that can replace an amateur-level refractor.
  • Powerful high-aperture BaK-4 glass objective lenses transmit a contrast, crisp, detailed picture.
  • 5-element eyepieces smooth out the image and minimize optical and spherical distortions.
  • Comes with a strap, pouch, eyepiece and objective lens caps.
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SVBONY SV503 Telescope 102ED F7 Extra Low Dispersion Achromatic Refractor OTA Micro-Reduction Rap Focuser for Astrophotography

  • 102mm objective lens diameter and f/7 focal ratio telescope OTA.
  • large objective lens brings more lights into the scope body and you will get more bright and clear image.
  • Doublet air spaced achromatic S-FPL51 ED glass provides you less chromatic aberration image.
  • ultra wide band multi-layer coating technology.
  • 102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution.
  • it comes with dual focus rack and pinion focuser with focus knob cover.
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NyLeabon 4x32 Crossbow Scope Red and Green Illuminated Scope Glass Etched Reticle Scope Compact Hunting Scope Shooting Scope with 1 Inch Scope Rings Black 4X32EG

  • 4x32 Compact Crossbow Scope - 4x magnification, 32mm objective lens diameter, 25.4mm tube diameter, click value is 1/4 MOA, 22mm scope rings, compact....
  • Red and Green Illuminated Scope - With red and green illumination, 5 levels brightness control..
  • Glass Etched Reticle Design - 4 aiming points glass etched reticle which is easy to adjust, special design for crossbow use..
  • Multi Coated Lens - Multi optically coated eyepiece lens and objective lens can offer wide view and clear image..
  • Shockproof, Waterproof and Fogproof - Solid aluminum alloy tube can offer better shooting experience, it is shockproof. We can use this crossbow scope....
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Aim Sports 4X32 Tri III. Scope with Fiber Optic Sight

  • High performance optical scope with fiber optic sight.
  • 4X magnification power and 32-millimeter objective lens.
  • Six-inch total length, 30-millimeter tube diameter, 32-millimeter objective lens, and 2"-2.5"inch eye relief.
  • Eight-millimeter exit pupil, 36.6-foot field of view at 100 yards, and 16.4-ounce weight.
  • Includes limited lifetime manufacturer's warranty.
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Levenhuk Karma Plus 10x32 Compact Waterproof Binoculars with BaK-4 Glass Optics

  • High-quality universal roof prism binoculars.
  • High-quality multi-coated BaK-4 glass optics ensures high-quality, truly sharp views.
  • Reliable rubber-armored shell is completely waterproof and fogproof.
  • Comes with eyepiece and objective lens caps.
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Fujinon 14x40 TSX1440 Techno-Stabi Image-Stabilized Binoculars

  • The TS-X 1440 features an image-stabilizing function, based on Fujifilm’s optical and mechanical design technologies nurtured through its....
  • With the effective diameter of 40mm for objective lens elements, the TS-X 1440 achieves an advanced level of light-gathering power. The company’s....
  • Chromatic aberration is controlled by optimally positioning four objective lens elements in three groups and six ocular lens elements in four groups.....
  • Designed with water and fog proof seals (Nitrogen Purged). O ring sealed..
  • Rubber armored body allows user to have a firm grip..
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