ReviewsAuxiliary Objective

Levenhuk Wise PRO 10x50 Monocular

High-aperture waterproof monocular with 10x magnification and a 50mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
large 50mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

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Levenhuk Wise PRO 8x42 Monocular

Wide-field waterproof monocular with 8x magnification and a 42mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
42mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

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Monstrum Rubberized Flip-Up Rifle Scope Lens Cover Set

Rubberized flip-up rifle scope lens covers that conform tightly around your rifle scope tube, protecting your lenses from dust and abrasion.
Spring-loaded flip-up mechanism pops open effortlessly when needed and securely tightly when not in use.
Each set includes two Rubberized Flip-Up Lens Covers. This set include one eyepiece cover with the size 37-43mm/1.5-1.7in and one objective cover with the size 26-31mm/1.0-1.2in.
For optimum fit, carefully measure the OUTSIDE DIAMETER of both your rifle scope’s eyepiece and objective bell. Please note that this measurement is different than the diameter of your objective lens.
Available in a full range of sizes to fit any rifle scope. Eyepiece Cover available in 37-43 mm(1.5-1.7 inch) or 43-49 mm(1.7-1.9 inch diameter). Objective Lens Cover available in 26-31 mm(1.0-1.2 inch), 31-37 mm(1.2-1.4 inch), 37-43 mm(1.5-1.7 inch), 43-49 mm(1.7-1.9 inch), 49-55 mm(1.9-2.1 inch), or 55-62 mm(2.2-2.4 inch) diameter.

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Gaterda Telescopes for Adults, 70x700mm Professional High Definition Large Field of Beginner Astronomical Telescope with Red Dot Finderscope, Tripod and Phone Adapter to Observe The Stars

... is equipped with two replaceable eyepieces (25MM, 10MM) and a 3x Barlow lens. Eyepieces with different multiples are better at discovering beauty..
【Clear Red Dot Finderscope】This telescope has a 5x24 red dot finder with a red laser transmitter. By adjusting the direction calibration knob, you get accurate auxiliary tools that are easy to locate. It can easily help you find the stars. Suitable for beginners..
【Quick Installation- No Tool Setup】We provide you with detailed installation instructions and precautions, which can make the installation easy and simple. To save your time, the telescope can be installed without matching other tools, truly a tool-free telescope..
【Customer Support】If you are not satisfied with the product or have any questions or need help, please feel free to contact us to get 24-hour technical support from our expert team..

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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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10X Achromatic Objectives Lens 185 Conjugate Distance Walfront Biological Microscope Achromatic Objectives Lens for Optical Instruments Conversion Objective Lens

► ALUMINUM SHELL -- Aluminum Alloy shell is preciseness machined, stable and durable for long time use..
► 10X MAGNIFICATION -- This is a 10X achromatic objective lens for biological microscope..
► INCREASE CONTRAST -- It can eliminate unwanted reflections and increase contrast..
► MORE CLEAR IMAGE -- Offers high quality observation without additional chromatic aberration..
► 31.3MM OBJECTIVE LENS -- The Length of the objective lens is 31.3mm, easy to use..

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Pinty 2.5-10x40 Red Green Illuminated Mil-dot Tactical Rifle Scope with Red Laser Combo - Green Lens Color

FIELD OF VIEW: Magnification 2.5-10X with 40mm objective, field Of View: 100 yards of 32.5' @ 2.5x - 8.9' @10x, laser range up to 100 yards..
MULTI-COATED GREEN OBJECTIVE LENS, boast higher light transmittance for better clarity performance compared to blue objective lens..
RED AND GREEN ILLUMINATED RETICLE, 5 brightness levels for all environments..
A QUALITY COMPLET SET OF LASER SCOPE, Solid aluminum alloy construction, quick and secure attachment to all Picatinny or Weaver rails..
WATERPROOF, FOG PROOF PERFORMANCE, Nitrogen filled and O-ring sealed for waterproof, fog proof performance..

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Pinty Pro 1x22mm 3 MOA Red Dot Reflex Sight with Anti-Reflection Devices

ADR DESIGN : 22mm lens provides quick target acquisition with high resolution and high light transmittance. Significantly reduces objective lens glare....
COMPACT PROTECTION: Reduce objective lens glare and reflection on any threaded red dot scope with this compact, anti-reflection device (ARD). In....
MAINTENANCE: Treat the grid with the same care you would any fine optical surface. If clogged with dirt or grit, remove ARD from optic and blow clean.....
MATERIAL: Shock proof 6061 aircraft grade aluminum alloy with durable metal screw in construction. Fog-proof & water-proof protection for high....
INSTRUCTIONS: 1. Remove the flip cap. 2. Thread the ARD into/out of objective lens barrel. 3. Push the flip cap back on..

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SVBONY SV173 Rifle Scope 4-16x50, AO Rifle Scopes for Hunting, Rifle Scopes for Long Range Shooting, Red and Green Illuminated Mil- dot Reticle, High Profile Scope Mount Included for Picatinny Rail

4x -16x magnification and 50mm big objective lens.
field Of view (feet) is 26.2-7.85 [email protected].
adjustable objective for parallax adjustable from 10 yards to Infinity.
suitable for long range hunting and shooting.
fully multicoated glass provides over 90% light transmission.
brilliant images and exceptional color contrast.
the multi-coated green objective lens has higher light transmittance and better clarity.
three-colour illuminations (green/red/ blue) 3 brightness levels allow shooters to find the right brightness needed for lighting and weather different conditions.
Spring loaded instant zero reset turrets.
avoid touching the adjusting screw during the prey to prevent the ballistic deviation.
1/4 MOA windage and elevation adjustments.
can withstand strong water spray test for no less than 3 minutes；package includes sunshade.

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NIGHTFORCE NX8 2.5-20x50mm F1 Illuminated Moar Reticle Black Matte Hunting Scope

ED GLASS – Features a large 50mm ED glass objective lens for excellent clarity, contrast, and resolution, even in low-light situations.
LOW-PROFILE ZEROSTOP TECHNOLOGY – It gives you an easy return to your zero point, no matter how many elevation adjustments you’ve made in the field.
WIDE ZOOM RANGE – This wide zoom range allows for fast engagements at close range along with the ability to detect, identify and engage targets at long range.
FIRST FOCAL PLANE PRECISION – First focal plane technology means consistent reticle values, regardless of the magnification setting.
luminated reticles that provide for fast hold-off adjustments and precise ranging calculations.
50MM OBJECTIVE – The 50mm objective is optimized for resolution and light transmission, with a parallax adjustment coming as close as 11 yards.
the integrated PTL (Power Throw Lever) makes power changes fast and easy.

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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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