Best Fixed Focal Lens

Canon XA50 Professional Camcorder Black

PRIME LENS ：Lens not zoomable， Fixed focal length 42.5mm，Minimum focusing distance of 0.30m.
COMPACT SIZE: Easy to pack it into a small bag when you’re traveling or on business..
FAST PORTRAIT LENS : Maximum aperture of f/1.7-f/22 delivers smooth bokeh, very great for low light, close-up/portrait photo photography and video shooting..
COMPATIBLE MODELS: Suitable for most micro four thirds cameras, Such as Panasonic G100，GH5，G9，G95，G85，GX9，GX85，GF-10，GF-9，GF-8, Olympus E-M5 Mark II，E-M10 markIII，E-M10 IV，E-PL9，E-PL10，PEN-F and more..
WHAT YOU GET：YN42.5mm F1.7M II lens, Product Guide, Our worry-free 12-month and friendly customer service..

Professional stereo microscope with boom stand has long working distance to enable users to perform work or manipulate large items, including circuit boards and dental appliances.
Trinocular viewing head with pair of 10x super-widefield eyepieces, adjustable interpupillary distance, fixed 45-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing.
0.7x-4.5x zoom objective provides continuous zoom magnification and longer focal length for inspecting large-scale specimens, a 0.5x Barlow lens extends the working distance, and a 2.0x Barlow lens extends the magnification range.
Removable rheostat-controlled 144-bulb LED has four separate zones to independently control light intensity and direction.
Double-arm boom stand has 20" arms and 17" pillar to enable users to position the microscope head on three axes (X, Y, and Z).

Fixed focal length, Lens with high image quality and bright f/1.2 aperture for the EOS R system.
Minimum focusing distance of 1.31 ft. /0.40M. Filter Size: 77mm.
A control ring for direct setting changes.
Three aspherical elements and one UD Element.

Works with SONY E Mount Mirrorless Cameras NEX 3 3N 5 NEX 5T NEX 5R NEX 6 7 A5000 A5100 A6000 A6100 A6300 A6500, etc.
Fixed focal length 25mm,Wide angle lens. Maximum aperture of 2.0-16 delivers smooth bokeh,sharp and great for landscapes, astrophotography, and close up photography.
Lens Not Attached : MANUAL LENS need you to enable "M mode " or "Release without lens" in the setting of camera.
APS-C frame angle of view: horizontal: 51 ° / vertical: 35 ° / diagonal: 59 °.
Build quality: The lens features a construction of 10 elements in 8 groups, which can produce sharp images with low distortion and low CA.

Compact, Lightweight Fixed 50 millimeter Focal Length Lens..
Large F, 1.8 Aperture for Low-Light Photography and Creative Background Blur.
A Stepping Motor (Gear-Type STM) Provides Smooth and Quiet Continuous AF During Video Recording, As Well As When Shooting Photos.
Optimized Lens Placement and Coatings Help Deliver Outstanding Color Balance, While Minimizing Ghosting and Flare.
Lens Compatible with the Mirrorless R System (EOS RP, EOS R, EOS R5, or EOS R6).

It Just Works - We’ve tested this lens among the many other selected on the 12MP RPi HQ Camera. No lens shading, no dark corners, decent image quality, it just works..
The Wise Alternative - Another cost-effective choice that adds up to your Raspberry Pi High Quality Camera Module, with 3.2mm focal length and manual focus..
Ultra Wide Angle - Compared to a 6mm lens with a 65 degree HFOV, which is known as wide angle, while this lens provides 120 degree Horizontal Field of View on the IMX477 HQ camera..
Other Specs – 1/1.7″ Lens Optical Format, F/2.0, Fixed Iris, Dimension: Φ28×30mm, Weight: 54g.
Qualified Arducam - Arducam has been selecting and testing CS lenses on the Raspberry Pi cameras since the V1 camera era. Check B012ETE75I if you want a 5MP Pi camera with CS Lens, and contact us to customized 8MP Pi cameras with CS lenses..

Compact, Lightweight Fixed 50 millimeter Focal Length Lens..
Large F, 1.8 Aperture for Low-Light Photography and Creative Background Blur.
A Stepping Motor (Gear-Type STM) Provides Smooth and Quiet Continuous AF During Video Recording, As Well As When Shooting Photos.
Optimized Lens Placement and Coatings Help Deliver Outstanding Color Balance, While Minimizing Ghosting and Flare.

BUNDLE INCLUDES: Tamron 24mm f/2.8 Di III OSD Wide-Angle Prime Lens for Sony E-Mount, Focus Flexible 12-inch Spider Tripod, and Kodak 32GB Class 10 UHS-I U1 SDHC Memory Card.
LENS CONSTRUCTION: The lens’ optical design utilizes 10 elements including one molded glass aspherical lens and three LD (Low Dispersion) lens elements.
MOISTURE-RESISTANT CONSTRUCTION: The Tamron 24mm f/2.8 comes with a moisture-resistant construction and features a fluorine coating on the front lens surface for easy maintenance and fingerprint removal.
ENHANCED FEATURES: With a minimum focusing distance of 0.12m and magnification ratio of 1:2, this fixed focal lens offers an enhanced close-focusing that lets get closer to your subject.

... and small round lens (8x) to get 23 kinds of magnification to meet your different needs: 1x, 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 8x, 9x, 9.5x, 10x, 10.5x, 11x, 11.5x, 12x, 12.5x, 13x, 13.5x, 14x.
DOUBLE LENS SLOT DESIGN: Handsfree headband magnifying glass is designed with two lens slots and one small fixed front round lens(8X). You can put one or two lenses at a time on the slots. We have provided you five replaceable lenses (1.0x, 1.5x, 2.0x, 2.5x, 3.5x) and the small round auxiliary lens (8x). NOTE:Please refer to our 3rd ad picture to adjust the lens and the focal length to finish the magnification.
COMFORTABLE&ADJUSTABLE HEADBAND MAGNIFIER: The inner side of the headband is wrapped with a soft sponge, which makes the head more comfortable when worn. Combined lens magnifying glass with 3 knobs. You can use the sides 2 knobs to adjust the height / angle of the lens, and the another one knob on the back side can adjust to fit the head size.The combined lens can adjust the angle or be folded. The small round lens is 360°rotatable, which can be folded or rotated upwards when you don't need..
WIDE APPLICATION: Made of high quality plastic and acrylic, the soft sponge inside of the magnifier ensures a comfort wearing. Also, can help you to....