Reviews Achromatic Doublets Lens

National Geographic RT70400-70mm Reflector Telescope with Panhandle Mount

• Lens Size 70mm, Focal Length 400mm, Eyepiece Size31.7 mm / 1.25 in.

AmScope A20X 20X Achromatic Microscope Objective

• This brand new 20X Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.

UTRAX Prism Bed Specs Laying in Tv Book Reading Lazy Glasses Periscope Eyeglasses Spectacles

• Achromatic mineral lens with anti-reflective treatment.

OMAX 100X (Oil, Spring) Achromatic Compound Microscope Objective Lens

• Standard 100X/1.25, DIN 160/0.17 achromatic objective lens (spring, oil).
• 1-year warranty against manufacturing defects.

Motic 1100100402251 BA310 Trinocular Polarizing Microscope, 20/80 Light Split

• Lead-free manufacturing in full compliance with RoHS regulations.
• Transmitted light illumination, 6V/30W Halogen.
• Adjustable field diaphragm and aperture diaphragm for an homogenous illumination.

National Geographic -CF600 Pan Handle Telescope Carbon Fiber 60mm

NATIONAL GEOGRAPHIC 8x32 Children s Telescope

• Lens Size 70mm, Focal Length 400mm, Eyepiece Size31.7 mm / 1.25 in.

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.

JINTU 500mm/1000mm f/8 Manual Telephoto Lens for Nikon SLR Cameras D90 D5100 D5200 D5300 D5500 D5600 D750 D800 D810 D850 D3100 D3200 D3300 D3400 D7000 D7100 D7200 D7500

• ★ Super 500mm achromatic refractor telephoto lens | High index, low-dispersion multi-coated HD optical glass to reduce flare.
• ★ 2x Teleconverter doubles the power of your lens to 1000mm.Built-in tripod mount and removable lens hood helps reduce stray light to prevent lens....
• This is a FULL Manual Lens, NO Electronic Contacts, your camera will not detect the lens when mounted, that's why it shows "LENS NOT ATTACHED", please....
• ★ Multi coated low-dispersion glass, anti-reflection coating, manual focus telephoto zoom lens to use with DSLR SLR cameras.Perfect for small or....
• ★Free T mount adapter supply. If your camera is canon, pentax, sony DSLR cameras or other brand of Micro 4/3 mirrorless cameras, you can buy extra....