Reviews Achromatic Lenses

OMAX 40X-400X Monocular Polarizing Compound Microscope with Center Adjustable Rotating Circular Stage

  • Head: Monocular 45degrees inclined 360 degrees rotatable.
  • Eyepiece: A wide field WF10X, with crosshair reticle.
  • Objectives: Achromatic, DIN 4x, 10x, 40x (spring).
  • Condenser: NA1.25 Abbe Condenser with iris diaphragm and polarizer.
  • Stage: Center adjustable, rotatable, with 360degrees.
  • Analyzer: Removable, mounted on the top of the eyepiece.
  • Polarizer: Mounted on the bottom of the condenser, easy to swing in and out of the light path.
  • Focus adjustment: Separated coarse and fine adjusting knobs on both sides.
  • Illumination: Halogen Lamp, 6V/20W, brightness adjustable.
  • 5-year warranty against manufacturing defects.
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SVBONY SV601 Microscopes for Kids Students Adults, SV502 Telescope for Kids, Telescopes Microscopes for School Laboratory Home Education

  • rotatable achromatic objective lenses 4x 10x and S40x with eyepieces WF10x WF20x.
  • greater magnification for microscopes 40x 100x 400x 80x 160x 1600x.
  • can be used simultaneously and independently controlled.
  • transmitted and direct light can be independently controlled.
  • which can see both opaque objects illuminated from above and translucent specimens illuminated from below.
  • support power supply and battery power supply.
  • convenient for indoor teaching and laboratory use.
  • built-in dry battery compartment for outdoor observation.
  • fully meet the basic needs of astronomical telescopes in children.
  • with 5X20 finder scope can help kids locate objects faster and earlier.
  • Imaging conforms to normal observation habits.
  • especially for children customers；perfect for Astronomical observation and Land viewing.
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AR-15 Sounds

  • ...me of the sight. Fully multi-coated lenses, 11 brightness settings, 3 MOA Dot reticle, 1 inch riser mount and unlimited eye relief greatly improve target acquisition speed and accuracy..
  • Clearer & Brighter Red Dot: Different from other sights which use a cheap single lens, GODREAMIT red dot sight uses a high-quality achromatic doublet lens(also fully multi-coated lens), providing superior control for minimizing spherical aberration, reducing internal light loss and glare, ensuring even light transmission, making the red dot clearer and brighter. Allow you to achieve fast target acquisition more easily..
  • 11 Brightness Settings for Better Target Acquisition: Because of the high-quality materials and innovative structural designs, the brightness setting at each level is brighter than other cheap sights with 11 brightness settings. So you can easily adjust the red dot to the best brightness and quickly aim at the target..
  • Waterproof & Shockproof & Fogproof Design for Maximum Durability: The waterproof optics are O-ring sealed and will stay dry even go 30cm deep for 30 minutes. The high shock-resistant design makes the sight can withstand bumps, bangs, drops and the rough-and-tumble environment of the field. Nitrogen inside the sight ensures that interi....
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AR-15 [Explicit]

  • ...me of the sight. Fully multi-coated lenses, 11 brightness settings, 3 MOA Dot reticle, 1 inch riser mount and unlimited eye relief greatly improve target acquisition speed and accuracy..
  • Clearer & Brighter Red Dot: Different from other sights which use a cheap single lens, GODREAMIT red dot sight uses a high-quality achromatic doublet lens(also fully multi-coated lens), providing superior control for minimizing spherical aberration, reducing internal light loss and glare, ensuring even light transmission, making the red dot clearer and brighter. Allow you to achieve fast target acquisition more easily..
  • 11 Brightness Settings for Better Target Acquisition: Because of the high-quality materials and innovative structural designs, the brightness setting at each level is brighter than other cheap sights with 11 brightness settings. So you can easily adjust the red dot to the best brightness and quickly aim at the target..
  • Waterproof & Shockproof & Fogproof Design for Maximum Durability: The waterproof optics are O-ring sealed and will stay dry even go 30cm deep for 30 minutes. The high shock-resistant design makes the sight can withstand bumps, bangs, drops and the rough-and-tumble environment of the field. Nitrogen inside the sight ensures that interi....
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SVBONY SV606 Digital Microscope 50x-1000x with SV601 40X-1600X Compound Student Microscope

  • Widely Compatible with Smartphone and PC.
  • The SV606 wireless digital microscope is compatible with iPhone HUAWEI Sumsung Smartphones with iOS 8.0 or Above.
  • Windows XP；Windows 7 / 8 / 10(32, 64 bit).
  • The hand held microscope has a 2MP CMOS sensor which ensures you get a high resolution images or videos.
  • It supports videos or image format at 640x480 1280x720 1920x1080.
  • The SV606 digital microscope can be connect with smart phone and PC through wifi or a USB 2.0 cable.
  • 10m wifi range is convenient for outdoor use.
  • allows you to take it on your trips for children to study plants, minerals, insects.
  • Rotatable achromatic objective lenses 4x 10x and S40x with eyepieces WF10X WF20X.
  • giving optical microscope more magnification 40x 100x 400x 80x 160x 1600x.
  • Dual illumination system has transmitted and direct light , Can use at the same time.Transmitted and direct light can be independently controlled.
  • which can see both opaque objects illuminated from above and translucent specimens illuminated from below. (LED light source is powered by 3x 1.5v AA batteries, excluding batteries).
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OMAX 40X-2500X LED Lab Trinocular Compound Microscope with Double Layer Mechanical Stage

  • Total magnification: 40X-100X-250X-400X-1000X-2500X.
  • Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil).
  • Viewing head: 45 degrees inclined 360 degrees swiveling trinocular.
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OMAX 40X-600X Professional Trinocular Polarizing Microscope

  • Head: Trinocular 45 degrees inclined 360 degrees rotatable.
  • Eyepieces: a pair of wide field WF10X/18 (one with crosshair reticle).
  • Objectives: Strain free achromatic, DIN 4x, 10x, 40x (spring), 60x (spring).
  • Condenser: NA1.25 Abbe Condenser with iris diaphragm and filter holder.
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SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes

  • look more closely and more detailed at the moon's surface and other planet.
  • Standard 1.25’’ 31.75mm fitting diameter.
  • can be used in any astronomical telescope with a 1.25" focuser.
  • and a wide range of cloudy nebulas and deep sky targets.
  • Fully coated optics glass eyepieces for excellent image contrast and light transmission.
  • give maximum detail and definition across the entire field of view.
  • planetary filters enhance details on Jupiter.
  • For lenses with the same refractive index.
  • the 62 degree aspheric eyepiece is thinner and lighter than the spherical eyepiece.
  • designed primarily for planetary observation.
  • 4mm 62 degree aspheric eyepiece can get maximum detail and definition across the entire field of view.
  • Eyepiece interface recess portion can prevent the loss.
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Gosky 2021 Newest ED Spotting Scope 20-60x 80mm, Extra-Low Dispersion & BAK4 Prism Spotter Scopes with Smartphone Adapter, Perfect for Bird Watching Target Shooting Hunting Wildlife Scenery

  • ..., bird watching wildlife, spotting moon, traveling, hiking, camping, archery etc..
  • 【Extra-low Dispersion】ED glass has particular optical materials which have a unique characteristic of dispersion when combined with other glasses it minimizes the effects of the secondary spectrum and when you compare this with an achromatic lenses made with standard glass, ED glass reduces chromatic aberration and therefore the color fringing to a remarkable degree..
  • 【Fully Multi-coated 80mm Green Film Objective Lens】---- Multi-coated lenses light transmitting up to an incredible 98% per surface, this means you can get more picture brightness. BAK-4 provide higher quality glass yielding brighter images and high edge sharpness. The 80mm objective lens allow more light enters the spotting scope than 60mm objective lens, so the brighter the image..
  • 【Waterproof Fogproof 】The waterproof spotting scope provides exceptional performance in the most rugged conditions. the spotter scope optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the spotting scope, fogproof barrel is filled with nitrogen gas to inhibit internal fogging, completely protection for all weather conditions. The eyepiece shield can be stretched out to protect the....
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