Top Lenses With Fixed Iris

AmScope B120B Siedentopf Binocular Compound Microscope, 40X-2000X Magnification, Brightfield, LED Illumination, Abbe Condenser, Double-Layer Mechanical Stage

  • Compound microscope provides high magnification for biological use and educational applications.
  • Siedentopf binocular head with pairs of 10x widefield and 20x widefield eyepieces with 53 to 77mm inter-pupillary adjustment, fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing.
  • Forward-facing nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN achromatic objectives that provide color correction of magnified images at eight magnifications.
  • Brightfield, LED illumination, and 1.25 NA Abbe condenser with iris diaphragm for clear examination and light control.
  • Double-layer mechanical stage, with 1.0mm stage divisions, locks slide into place and provides precise slide manipulation along the X- and Y-axis to allow coordinates to be recorded, enabling the viewer to return to a specific location on the slide.
  • Eight widefield magnification settings: 40X, 80X, 100X, 200X, 400X, 800X, 1000X & 2000X.
  • Professional 30 degree inclined 360 degree swiveling Siedentopf binocular head.
  • Large 3-D double layer mechanical stage with coaxial coarse & fine focusing.
  • High quality Abbe condenser with iris diaphragm & filter.
  • Powerful single bulb LED illumination with d....
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Acratech Panoramic & Tilt Head with QR 25 lbs Load Capacity

  • Acratech Long Lens Head with Fixed Clamp - Bull's Eye Level - Quick Release Clamp - 1/4"-20 Reducer Bushing - Acratech 10 Year Warranty.
  • Designed to work as a multi-row panoramic head and as a long lens head.
  • Eliminates the need to carry a large, heavy gimbal head.
  • Provides easy, smooth balance for long lenses.
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Canon AE-1 35mm Film Camera w/ 50mm 1 1.8 Lens Renewed

  • 35mm SLR (Single-Lens-Reflex) camera with electronically controlled AE (Automatic Exposure) and focal plane shutter..
  • Canon FD series interchangeable lenses with full aperture metering and AE coupling. Canon FL series with stopped-down metering..
  • Standard lenses for the Canon AE are Canon FD 55mm f/1.2 S.S.C, Canon FD 50mm f/1.4 S.S.C, Canon FD 50mm f/1.8 S.C..
  • Canon Breech-Lock mount, Canon FD, FL and R lenses can be used. The viewfinder is fixed eye-level pentaprism with a field of view that is 93.5% vertical and 96% horizontal coverage of the actual picture.
  • Viewfinder information includes aperture scale with meter needle and stopped-down metering which also serves as a battery charge level check mark..
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Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses

  • Compatible with Select EF Mount Lenses. Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
  • 9 elements in 5 groups lens construction.
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Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses (Renewed)

  • Compatible with Select EF Mount Lenses. Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
  • 9 elements in 5 groups lens construction.
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OKH Stick-on Reading Glasses Lens Adhesive Magnification Bifocal Lenses for Sunglasses Safety Goggles (2 Packs, 1.25)

  • 【Stick-On Magnification Lenses】For those in need of a magnifying lens, these can be added to any pair of glasses.Stick-on reading lenses convert any eyewear into magnifying reader glasses ..
  • 【High Quality Materials】The magnification lenses are soft，pliable plastic lenses shaped in half moon.One of the best features is they so snugly to the surface of your sunglasses that when someone is looking at you，they almost undetectable from the outside..
  • 【Easy to install and carry】New technology,strong adsorption capacity easy to stick on the lenses,no water needed.Mini space storage,could be taken to everywhere..
  • 【Widely Application】Can be widely used on the sunglasses/ goggle /diving goggle / skating glasses and other sports sunglasses etc.But it is not suitable for hard wrap-around sunglasses..
  • 【Friendly Tips】Please press hardly as soon as stick it.If the stickers were not fixed,please try to change another side.A few bubbles on the lenses are normal and do not affect the use.It is not recommended to use it repeatedly. It is better to stick it on apair of glasses..
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OuShiun Stick-on Magnification Bifocal Lenses Adhesive Stick Reading Lenses Reusable for Safety and Sunglass 1 Pair(+1.50 diopter)

  • 【Stick-On Magnification Lenses】For those in need of a magnifying lens, these can be added to any pair of glasses.Stick-on reading lenses convert any eyewear into magnifying reader glasses ..
  • 【High Quality Materials】The magnification lenses are soft，pliable plastic lenses shaped in half moon.One of the best features is they so snugly to the surface of your sunglasses that when someone is looking at you，they almost undetectable from the outside..
  • 【Simple Operation Easy To Carry】New technology,strong adsorption capacity easy to stick on the lenses,no water needed.Mini space storage,could be taken to everywhere..
  • 【Widely Application】Can be widely used on the sunglasses/ goggle /diving goggle / skating glasses and other sports sunglasses etc.But it is not suitable for hard wrap-around sunglasses..
  • 【Friendly Tips】Please press hardly as soon as stick it.If the stickers were not fixed,please try to change another side.A few bubbles on the lenses are normal and do not affect the use.It is not recommended to use it repeatedly. It is better to stick it on apair of glasses..
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Fotodiox Pro IRIS Lens Mount Adapter Compatible with Canon EOS EF Full Frame Lenses to C-Mount Cameras

  • Compatible with Canon EOS EF (will not mount EF-S) lenses on C-mount cameras (1.000 inch thread) such as Cine, CCTV / Machine Vision / Microscopes.
  • Enhanced craftsmanship and high-tolerance construction for demanding professionals.
  • Integrated de-clicked aperture iris for incoming light adjustment.
  • lens has no play, gap or wiggling when mounted on adapter and no adjustments required.
  • Precision all-metal construction with chrome plated brass mount for secure and solid lens fit.
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Nikon FM-10 35mm SLR Camera Kit with 35-70mm F3.5-4.8 Zoom Lens & Camera Case

  • 35mm SLR (Single-Lens-Reflex) camera with electronically controlled AE (Automatic Exposure) and focal plane shutter..
  • Canon FD series interchangeable lenses with full aperture metering and AE coupling. Canon FL series with stopped-down metering..
  • Standard lenses for the Canon AE are Canon FD 55mm f/1.2 S.S.C, Canon FD 50mm f/1.4 S.S.C, Canon FD 50mm f/1.8 S.C..
  • Canon Breech-Lock mount, Canon FD, FL and R lenses can be used. The viewfinder is fixed eye-level pentaprism with a field of view that is 93.5% vertical and 96% horizontal coverage of the actual picture.
  • Viewfinder information includes aperture scale with meter needle and stopped-down metering which also serves as a battery charge level check mark..
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Oculus Quest 2 Cleaning Pen，Lens Cover and Touch Controller Grips Cover

  • Oculus Quest 2 Lens Cleaning Pen - Designed specifically for cleaning the lenses of Oculus Quest 2, Quest, Virtual Reality Headset, PS4 VR, Microsoft HoloLens, Cameras, Drone, and other optical lenses..
  • Oculus Quest 2 Lens Cleaning Pen - Double-ended design, quick and convenient to use. The suede carbon powder is made of activated carbon powder without dispersing or drying, Comes with the filament brush, effectively eliminates fingerprints, smudges, dust and dirt on lens and screen..
  • Oculus Quest 2 Lens Cover - Made of Lycra fabric material, easy to use, and can be washed repeatedly. Scratch-proof, and sun-proof, Effectively prevent the lens from aging..
  • Touch Controller Grips Cover - Unique Knuckle Strap for Oculus Quest 2: The adjustable wrist knuckle strap adopts the same material as the Apple Watch Nylon Band. The double-layer nylon weave has dense loops on the skin side that provide soft cushioning while allowing moisture to escape. Soft, breathable, lightweight, and easily adjustable..
  • Touch Controller Grips Cover - Easy to Install & Remove: The touch controller and the anti-throw handle sleeve are firmly fixed by a velcro strap. The handle sleeve is tied with a three-position adjustable and fixed, and the tightness is adjusted according to the siz....
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Oculus Quest 2 Lens Cleaning Pen，Lens Cover and Touch Controller Grips Cover

  • Oculus Quest 2 Lens Cleaning Pen - Designed specifically for cleaning the lenses of Oculus Quest 2, Quest, Virtual Reality Headset, PS4 VR, Microsoft HoloLens, Cameras, Drone, and other optical lenses..
  • Oculus Quest 2 Lens Cleaning Pen - Double-ended design, quick and convenient to use. The suede carbon powder is made of activated carbon powder without dispersing or drying, Comes with the filament brush, effectively eliminates fingerprints, smudges, dust and dirt on lens and screen..
  • Oculus Quest 2 Lens Cover - Made of Lycra fabric material, easy to use, and can be washed repeatedly. Scratch-proof, and sun-proof, Effectively prevent the lens from aging..
  • Touch Controller Grips Cover - Unique Knuckle Strap for Oculus Quest 2: The adjustable wrist knuckle strap adopts the same material as the Apple Watch Nylon Band. The double-layer nylon weave has dense loops on the skin side that provide soft cushioning while allowing moisture to escape. Soft, breathable, lightweight, and easily adjustable..
  • Touch Controller Grips Cover - Easy to Install & Remove: The touch controller and the anti-throw handle sleeve are firmly fixed by a velcro strap. The handle sleeve is tied with a three-position adjustable and fixed, and the tightness is adjusted according to the siz....
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Dilzekui 1.5X to 13.0X Headband Magnifier, Headband Magnifying Glasses with Led Light, Rechargeable Head Magnifying Glasses Visor, Magnifying Glasses for Jewelers Loupe, Crafts, Repair, Close Work

  • ...o meet your need. Also, you can remove the battery to charge. It takes four hours to fully charge through USB cable. Fully-charged battery can make LED light last continuously for 8-12 hours..
  • LENS SLOT DESIGN: Handsfree headband magnifying glass is designed with two lens (fixed front lens 1.5X with replaceable back lenses) and one small fixed front round lens(8X). You can put one or two lenses at a time on the slots. We have provided you four replaceable lenses(2.0x,2.5x,3.0x,3.5x) and the small round auxiliary lens (8x).
  • COMFORTABLE&ADJUSTABLE HEADBAND MAGNIFIER: The inner side of the headband is wrapped with a soft sponge, which makes the head more comfortable when worn. Combined lens magnifying galss with 3 knobs. You can use the sides 2 knobs to adjust the height / angle of the lens, and the another one knob on the back side can adjust to fit the head size.The combined lens can adjust the angle or be folded. The small round lens is 360°rotatable, which can be folded or rotated upwards when you don't need..
  • WIDE APPLICATION: Made of high quality plastic and acrylic, the soft sponge inside of the magnifier ensures a comfort wearing. Also, can help you to improve your low vision and release your hands in work at one time. For different use: reading, ....
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