Place of Origin: China Brand Name: OEM Model Number: STD2 Material: Glass Usage: Slit lamp Structure: Plano-convex Shape: Aspheric Specifications: 20D 78D 90D
Place of Origin: China Brand Name: OEM Model Number: TLS-232 Product name: Trial Lens Set TLS-232 Application: Optical Shops Material: plastic rim, aluminum case Sphere: 68 pairs Cylinder: 38 pairs Prism: 10 pieces Accessories: 10 pieces
Anti-glare acrylic lens are made of fabricating a super-fine single-matte acrylic sheet, it creates much better readability of the text, image, and photos for people by reducing the glare, reflection ,and eye dizziness. thickness: 2, 3mm size: 800mm x 1260mm masking: brown masking paper
New original tin contact lens circle contact lens Product details Power Range Plano ~6.00(0.25 step) ; 6.00~10.00(0.50step) Base Curve 8.6 mm Diameter 14 mm Water content 40% Center Thickness 0.08 mm Package Blister ,Vial Contact lenses are thin, clear plastic disks you wear in your eye to improve your vision. Contacts float on the tear film that covers your cornea.
Presenting an action cam that’s tough enough to keep up with your adventures. The pocket-sized tg-tracker records ultra hd 4k video using advanced olympus optics. Take it places you wouldn’t dare take most cameras. Mountaintops. Winter slopes. Whitewater rafting or into the waves. Drop it, freeze it, submerge it, and it will just keep shooting – even 100 ft (30 m) underwater, no protective housing required. Handy extras like the led headlight and the tilt-out monitor help you nail difficult shots. Use the built-in action track sensors, gps, and wi-fi to record and share every awesome moment.
Focal length: 28 mm, aperture range: f/2 – f/22, focusing range: 0.24 m –8, number of elements/groups: 10/8, angular field, diag./horiz./vert. : 74°/65°/45°, coverage at close range: 18 x 12 cm, filter thread m 58 x 0.75, dimensions (with caps) : ø 64-72 mm, length 93-96 mm. Weight: 500g - 580g
Sales of laser cutting machine nozzle, protective lens, laser welding machine nozzle, laser generator
The Fujifilm XF 10-24mm f/4 R OIS Lens is a wide-angle zoom providing a 35mm-equivalent focal length range of 15-36mm when used with Fujifilm APS-C-sized mirrorless digital cameras. A constant f/4 maximum aperture maintains consistent illumination throughout the zoom range and the Optical Image Stabilization system helps to minimize the appearance of camera shake when working with longer shutter speeds. An internal focusing system, and the use of a stepping AF motor, ensures quiet, smooth, and precise focusing capabilities that are ideal for both still and video applications. Four aspherical and three extra-low dispersion elements are integrated into the optical design to reduce chromatic aberrations throughout the zoom range and to benefit overall image clarity and sharpness. An HT-EBC multi-layer coating helps to minimize ghosting and lens flare for higher contrast and an additional coating has been applied to the rear side of the front-most lens element to further reduce ghosting that is common to lens designs with deep concave elements.
35mm f/2.8 Di III OSD Lens F053
24mm f/2.8 Di III OSD Lens F051
FE 85mm F1.4 GM (SEL85F14GM)
65mm F2 DG DN Contemporary Lens
28mm F1.4 DG HSM Art
Standard lens featuring superb quality and portability. Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference. Crisp images with little flare are obtained even at the maximum aperture.
The 40 mm f/2.8G AF-S DX Micro-Nikkor Lens from Nikon is a superb carry-it-everywhere, jack-of-all-trades lens for your Nikon DX camera. The focal length (equivalent to 60 mm in FX or 35 mm format) gives it the versatility to capture portraits, street shots and landscape photos without breaking a sweat. And the light weight (9.9 oz/280 g) means you`ll actually carry it around with you, greatly increasing the chance that you`ll get a great photo.
65mm F2 DG DN Contemporary Lens
OST Photonics Cylindrical Lenses Cylindrical lenses are utilized for astigmatism correction in the eye and rangefinders, inducing astigmatism by elongating a point of light into a line. They find extensive application in barcode scanning, projection optics systems, laser measurement systems, and holography. Ost Photonics offers cylindrical concave lens in plano-concave or plano-convex configurations. Basics about Cylindrical Lenses LENSES MATERIALS ILLUSTRATION PROPERTIES AND APPLICATIONS CYLINDRICAL LENS BK7/ Fused Silica/CaF2 /other optical glass Used to provide focusing power in one section only. For illumination or detection of light from line sources. Also used for the anamorphic compression of beams and images. Specifications of Cylindrical Lenses Material Schott N-BK7, CDGM H-K9L, Fused silica, CaF2, Sapphire Design wavelength 546.07nm Design index (bk7) 1.51680 for BK7, 1.45846 for Fused Silica Diameter tolerance +0.0, 0.15mm +0.0, 0.05mm Paraxial focal length �±2% �±0.5% Centration Clear aperture 80% 90% Surface quality 60-40 scratch and dig 10-5 Scratch and dig Surface irregularity Protective bevel 0.25 + 0.25, -0.0mm 0.2 �± 0.1mm Coating Uncoating, AR or Single layer MgF2 coating upon request What Is a Cylindrical Lens Used For? Cylindrical lenses are specialized optical components used primarily to correct astigmatism, a common refractive error in the eye. Unlike spherical lenses, which have the same curvature in all directions, cylindrical lenses have curvature in only one direction. This unique property allows them to focus light into a line rather than a point, making them ideal for applications requiring precise control over light direction and focus. OST Photonics, a leader in cylindrical optics, offers high-quality cylindrical lenses designed to meet various optical needs.
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