Top Achromatic Doublet Lens

Artisan Small Shark Linerlock D2 Black ATZ1707PSBBKF

【4 Sets of Achromatic Doublets】: Dispersion is a common optical phenomenon, especially in fast lenses. 4 sets of Achromatic Doublets are used in M....
【First Choice for Portrait & Close-up Beauty】: Its high speed and the unique aesthetics of its depth of focus makethis telephoto lens the frst....
【Smooth Bokeh with Fast F/1.25 Maximum Aperture】: Extremely fast f/1 . 25 maximum aperture affords notable control over depth of hield for....
【Support Macular Linkage】: Support the macular focusing of Leica/Voigtlander/Minolta and other paraxial m-port cameras ..
【Wide Compatibility】: 90mm F1.25 camera lens is compatible with Leica M mount camera like M2 M3 M4 M5 M6 M7 M8 M9 M9P M10 M262 M240 M240P..

This brand new 4X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.

The SV182 finder scope with 6x power magnification and a 30mm diameter lens collects ample light to make aiming your telescope easy and fun.
The SV182 finder scope features fully muilt coated achromatic finder scope optics.
Can effectively eliminate aberrations and chromatic aberrations.
2 plastic adjustment screws with a 90 degree angle and a fixed spring push-pull screw.
only need to adjust 2 screws to quickly find the target.
the inside of the SV182 finder scope fully threaded to minimize reflections.
SV182 finder scope net weight is 0.49lb that won't add excessive weight or bulk to your OTA.

10x MAGNIFICATION with LED & UV Light, 21mm Lens Diameter, Triplet lens, Achromatic optical glass, Metal (Aluminum) body.
PROFESSIONAL KIT SET: includes 10x Jewelry Loupe, High-quality protective case, Lens cleaning cloth and Quickly detachable lanyard cord. A ready-to-go....
TRIPLET LENS: 3 singles lens bonded together with excellent color sharpness and clarity.
APPLICATION: Great for jewelers, mechanics, machinists, stamp & coin collectors, arts & crafts, photographers, hobbyists, watchmaker and other fields....

Compact, highly portable binoculars that are ideal for birdwatching, travel, sports, and more.
Superb Image Stabilization (IS) using optics technology, equivalent to what is used for Canon EF lenses.
10x high magnification ratio with a 30mm/1.18 in. objective lens effective diameter.
Porro II Prisms help provide outstanding image resolution and minimize the loss of light.
Doublet field-flattener for sharp, virtually distortion-free images from edge-to-edge.

UNIQUE DESIGN: Break out your lasso. Within an oxidized, sterling silver rope border, these dangling earrings display a bright gemstone doublet that draws you near. At the post, a textured & polished sterling silver top treats you to the designer's signature, shapely style..
PRECIOUS MATERIALS: 925 Recycled Sterling Silver.
Signature textured and polished top with a pear-shaped doublet dangling below.
doublet made up of turquoise cabochon bottom and a crystal quartz top.

Goniometer-type spectrometer provides hands-on experience observing and measuring light spectra.
0 to 360 degree rotation, 1 degree graduations, and 0.1 degree vernier scale.
Collimator has an adjustable slit, an achromatic converging lens with a 178mm focal length, and a locking screw.
Prism table with 175mm diameter rotates around the central axis and has three leveling screws to ensure precise placement.
Astronomical-type telescope has achromatic objective and Ramsden eyepiece with crosswire, and is mounted on heavy bearing to rotate around the central axis of the instrument.

Head: Trinocular, 45 degrees inclined 360 degrees rotatable, interpupillary adjustable, diopter rings on both ocular tubes.
Eyepieces: 10X (a pair of regular, and one with reticles, one with crosshair, and one with grids).
Nosepieces: Quadruple, objective center adjustable.
Objectives: DIN strain free achromatic - 4X/0.10.
Total magnification: 50X - 125X - 312.5X - 500X - 787.5X.
Objectives: DIN strain free achromatic - 4X/0.1....

SV118 1.25" 2x achromatic Barlow lens effectively doubles the magnification of each eyepiece.
SV118 barlow lens uses two element fully multi coated for excellent transmission and the internal housing is baffled to eliminate unwanted reflections and increase contrast.
The Barlow lens’ role is not only to improve the image quality.
SV118 2X barlow lens provide a high power magnification allow you look more closely and more detailed at the moon's surface and other planet.
It's a great Halloween birthday christmas gift.

Professional Metal Handheld 10x Magnification Triplet With LEATHER CASE..
Large 0.65'' (17mm) Viewing Area for Pocket Magnifying Glass with Anti-Reflection (AR) Coating..
Hastings loop with Large 21mm(0.85'') Achromatic Triplet Lens Gathers Light for a Bright, Clear and Color Correct View..
Optical Quality Glass Lenses, each BelOMO hand loupe is certified just like a camera lens..
Inspection Rocks, Minerals, Jewelery, Diamonds, Coins, Botany, Stamps, Gemstone, Plant. Hand lens for Science, Geological..

Double the power of any 1.25" telescope eyepiece with this T-adapter equipped Barlow lens.
Male T-threads allow secure camera attachment for high-magnification lunar and planetary astrophotography.
A great way to double the number of magnification options, without having to buy twice as many eyepieces.
Doublet lens system is multi-coated for excellent transmission and the internal housing is baffled to eliminate unwanted reflections and increase contrast.
Very compact - just 2-7/8" long - easy to store and carry.