Best Achromatic Spherical Lens

ZEISS Conquest Mono 4x12mm Monocular with T* Lenses

Zeiss T* Anti-Reflective coating is designed to reduce surface reflections and, consequently, remove flares and ghost images, resulting in a clear, crisp picture.
4x magnification in a pocket-sized device.
Achromatic lens design minimizes chromatic and spherical aberration.
Schmidt-Pechan roof style prism allows for straight, compact design.

Zeiss T Anti-Reflective coating is designed to reduce surface reflections and, consequently, remove flares and ghost images, resulting in a clear, crisp picture.
Can transform your Victory FL and Conquest binoculars into a high-performance spotting scope by tripling magnification in the blink of an eye.
3x magnification in a pocket-sized device.
Achromatic lens design minimizes chromatic and spherical aberration.
Schmidt-Pechan roof style prism allows for straight, compact design.

...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....

...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....

This brand new 100X (spring, oil) Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.

This brand new 40X (spring) Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.

This brand new 60X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.

...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....

【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..

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.

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