Reviews Aspherical Lenses- BestItemr.com

OLYMPUS M.Zuiko Digital ED 12-40mm F2.8 Pro Lens, for Micro Four Thirds Cameras

Focal length: 12 to 40 millimeter, minimum focus distance 7.87 inches (20 centimeter ).
Dust proof, splash proof, and freeze proof construction. Lens construction: 14 elements in 9 groups (Aspherical ED lens, 2 Aspherical lenses, DSA lens, 2 ED lenses, HD lens, 2 HR lense).
Includes lens hood and pouch, filter size 62 millimeter, equipped with manual focus clutch mechanism.
Compatible with Olympus and Panasonic cameras.
Focal length: 12 to 40 millimeter, minimum focus distance 7.87 inches (20 centimeter).

BUNDLE INCLUDES: Sigma 18-35mm f/1.8 DC HSM Art Lens for Canon DSLR Cameras with Sigma USB Dock for Canon Lenses, Koah Tillary Messenger Camera Bag with Accessory and Cleaning Kit and SanDisk 64GB Ultra SDXC UHS-I 100MB/s Memory Card.
DC FOR DIGITAL: Sigma's DG lenses are specifically designed to deliver the ultimate level of performance on full frame digital SLRs. Sigma DGs also maximize the abilities of 35mm SLR cameras and APS-C size DSLRs.
ART LENS: Engineered for those who see photography as a critical expression of self, our Art line offers sophisticated optical performance and abundant expressive power to deliver faithfully on your artistic vision.
ASPHERICAL LENS ELEMENTS: The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.

1/2.33-inch sensor, f3.3 - 5.9 / 2-step aperture.
Leica DC Vario-Elmar9 Elements Lens in 7 groups (3 aspherical lenses, 6 aspherical surface.

Aperture range of f/2.8-F/22 with a minimum focusing distance of 7.8".
Constructed of 15 elements in 10 groups including 1 ED Lens, 2 aspherical lenses, and 4 hri lenses.
Full frame compatible with 7 diaphragm blades and ultra multi-coated glass.

Minimum Focus Distance 0.9 ft.( 0.28 m), minimum f/stop 22.
Lens construction 14/11 (2 ED glass elements, 3 aspherical lenses and 1 Nano Crystal Coat).

Minimum focus distance 0.9 feet. (0.28 meter), minimum f/stop 22.
Lens construction 14/11 (2 ED glass elements, 3 aspherical lenses and 1 Nano Crystal Coat).

Multicoated Eco-Glass Lenses: 8x magnification aspherical eyepiece lenses aid in delivering a flat field of view while the lens multicoating provides....
Ergonomic Binocular Design: These binoculars are lightweight and comfortable to hold for extended periods of time, great for bird watching, hunting,....
Smooth Focus: Fast and smooth range of focus allows for quick viewing and the turn-and-slide rubber eyecups provide comfortable viewing for long....
Design: Rubber-armored coating ensures a non-slip grip, even in wet conditions while the turn-and-slide multi-click rubber eyecups allow users to....
What You Get: Aculon A211 8x42, Case, Lens Caps, Strap, and a Lumintrail Cleaning Cloth.

Sigma USA Authorized Dealer, 4-Year Sigma USA Warranty.
Covering wide angle 18mm to telephoto 250mm, this versatile lens designed exclusively for digital SLR cameras, is suitable for all-purpose photography including landscape, sport, and macro photography. It is convenient when you wish to keep your equipment to a minimum and yet still be prepared for all opportunities and situations, such as travels..
Special Low Dispersion (SLD) glass element with three aspherical lenses, including a double-sided aspherical lens, have been used in the lens’ construction–offering excellent correction of color aberration, for better clarity and quality of images throughout the zoom range..
Super Multi-Layer Coating has also been employed to reduce flare and ghosting with this lens. This makes it resistant to strong incident light, such as backlight behind a subject, providing sharper, high contrast images even shooting into a light source..
Close-up capability is improved with the minimum focusing distance of 13.8″ throughout the entire zoom range, and maximum magnification ratio of 1:2.9. In APS-C size equivalent, macro photography with approximately 1:2 magnification ratio is possible..

Lumia S camera lens – 24-105mm standard focal macro zoom F4 l-mount for Lumia S Series full-frame l-mount digital Mirrorless cameras..
O. I. S. Stabilization – complies with Lumia camera body I. S..
5-axis Dual I. S. 2 [1] makes it possible to use 6-STOP slower shutter speed [2].
Lens elements – 16 lenses in 13 groups.
2 aspherical lenses and 2 ED (extra-low dispersion) lenses effectively suppress chromatic aberration and....
Macro Lens – 0. 5x macro shooting with a minimum focusing distance of 0. 3M so you can photograph small subjects at very close distances..
Rugged lens design – dust/splash*/freeze-resistant design withstands use under harsh conditions for high mobility..

Multicoated, Eco-Glass optics made without lead and arsenic reduce glare and improve light transmission, color rendition and contrast.
BaK4 high index prisms for extra-high resolution images.
Compact 25mm diameter objective lenses help to maintain a small form factor for easier handling and packing.
Aspherical lens design minimizes field curvature, especially at the edges, and enhances sharpness.
Durable and protective, rubber-armored coating.

LUMIX S PRO CAMERA LENS – 70-200mm telephoto zoom F4 L-mount lens, LEICA certified for LUMIX S Series Full-Frame digital mirrorless cameras.
O.I.S. STABILIZATION – Complies with LUMIX camera Body I.S..
5-Axis Dual I.S. 2 [1] makes it possible to use 6-stop slower shutter speed [2].
LENS ELEMENTS – 23 lenses in 17 groups.
an aspherical lens and 3 ED (Extra-low Dispersion) lenses effectively suppress both axial chromatic aberration and chromatic aberration of magnification.
LENS FOCUSING – A double focus system combines a linear motor and stepping motor to achieve sensor drive at a maximum speed of 480 fps for fast, high-precision autofocus.
RUGGED LENS DESIGN – Dust/splash*/freeze-resistant design withstands use under harsh conditions for high mobility.

Ultra-compact and super-sharp 37.5-150mm, 4x Zoom.
Innovative Camera Shake Indicator warns of camera shake and reduces the risk of image blur.
Multi-wide 11 point AF System for highly accurate autofocusing.
Amazing high quality lens system featuring an ED glass lens and two double-sided aspherical lenses.