ReviewsLaser Lens Focal Length

Canon 242R241 Extender EF 2X III, White/Black

  • Extends the focal length of your lens by 2x.This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
  • Outstanding image quality thanks to new optical design and improved AF performance.
  • Highly resistant to dust and water for use in harsh conditions.
  • Built in micro computer enables effective communication between lens and camera.
  • Lens coatings are optimised to minimise ghosting and flare.
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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).
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HMANE Telescope Reflector Main Mirror 1600mm with Secondary Mirror 40mm, Newton Reflector Spherical Mirror DIY Astronomical Telescope Mirror Kit, 226SQ59LARZVJE14JMZ8XR

  • Contains a primary lens with an objective lens diameter of 203mm and a focal length of 1600mm, and a secondary mirror with a short axis (short side diameter) of 40mm length. This is the core component of a set of mirrors..
  • Features: The main mirror is a spherical mirror with aluminized surface and a protective film to prevent scratches on the main mirror under light touch. The workmanship is excellent..
  • Advantages: Compared with cheap telescopes on the market, our primary mirror has a diameter of 203mm and a large-aperture optical glass with a focal length of 1600mm, which can see farther, and the focal length is as high as 1600mm, which can significantly reduce the imaging failure caused by spherical aberration. Real, greatly improved the experience, this is a professional DIY telescope lens set..
  • This kit has more collection and commemorative opinions. At the same time, the lens can support the famous schlieren experiment. It can make the home a laboratory in seconds, suitable for teaching, childrens hobby training, hands-on and other ability training..
  • Tips: For the fixation of the eyepiece, lens barrel, and fixed lens. You need to buy them by yourself..
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VILTROX EF-EOS M2 Speed Booster Canon 0.71x Autofocus Speedbooster Canon EF-M Lens Adapter Compatible with Canon EF to m50 m200 m6 m5 m50 ii m6 ii

  • The VILTROX EF-EOS M2 is designed to allows Canon EF lenses to be mounted on the Canon EOS M mirrorless camera, compatible with all lens functions. Can increase the lens 1 f-stop, increasing the amount of light into the virtual background, can better highlight the theme ..
  • Allows the aperture increased by one level while the focal length is reduced (equivalent focal length= focal length x 0.71 x 1.6), increase the lens 1 f-stop, Bring better photo bokeh..
  • Signal transmission using PIN gold needle, greatly enhanced its transmission performance, real-time preview of photo information on camera, full compatible with Canon lens and camera features, e.g. autofocus, image stabilization, auto aperture adjustment, etc..
  • 4 lens elements in 4 groups for optical clarity as well as color fidelity.Detachable tripod foot with 1/4"-20 accessory thread for direct attachment to tripods or quick release plates that feature 1/4"-20 mounts..
  • USB upgrade port: Through continuous software updates, VILTROX will help users get better shooting experience, fix product bugs and constantly adapt to the new EF lens, provide more Canon lens and camera combinations..
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Optical Glass Lens, 3' (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base - Eisco Labs

  • DOUBLE CONCAVE || Highly polished, double concave lens.
  • SPHERICAL || Lens measures 3" (75mm) in diameter and approximately 12mm thick.
  • 200MM FOCAL LENGTH || Diverging lens with a 200mm focal length.
  • OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with beveled, ground edges.
  • GREAT FOR PHYSICS CLASSROOMS or TOP SPINNING || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction. It's smooth, concave surface also makes this lens ideal for top spinning.
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Hasselblad XCD 45mm f/4 P Lens

  • Hasselblad 45mm F/4 XCD Lens - Front Lens Cap - Hasselblad 1 Year Limited or 1,000,000 Exposure Warranty.
  • Angle of View Diag/Hor/Vert: 61/50/39 Degree.
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Nikon COOLPIX P1000 16.7 Digital Point and Shoot Camera + 128GB Memory + LED Video Light + Case + Filters + 3 Piece Filter Kit + More 24pc Bundle

  • ...o Recording , SnapBridge via Wi-Fi or Bluetooth ,Auto, Aperture, Shutter & Manual Mode.
  • Shoot at staggering distances with the 125x optical zoom COOLPIX P1000 Digital Camera from Nikon. This camera, which has a 16MP backside illuminated CMOS sensor, features a built-in NIKKOR lens with a 35mm equivalent focal length range of 24-3000mm..
  • An absurd 24-3000mm (35mm equivalent) focal range means few, if any, objects are out of the reach of your lens. Zoom is further enhanced by Dynamic Fine digital zoom, which makes the maximum focal length a ridiculous 6000mm. Dual Detect Optical Vibration Reduction provides 5 stops of optical image stabilization so your handheld shots are crisp..
  • The P1000 features a slew of shooting modes that adjust settings for different scenarios like sunsets, fireworks, and portraits. The popular Moon Mode is great for shooting Earth's closest neighbor and the new Bird Mode optimizes the camera for capturing the often bright and colorful creatures..
  • A control ring at the front of the device can be used for a variety of functions, like adjusting focus, exposure, white balance, and ISO, all from the lens barrel. Also on the barrel is a zoom toggle and a dedicated Snapback button that will make your P1000 quickly zoom out in case ....
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Nikon AF-S FX NIKKOR 24-70mm f/2.8E ED Vibration Reduction Zoom Lens with Auto Focus for Nikon DSLR Cameras

  • Fast f/2.8 constant aperture with an electromagnetic diaphragm.
  • Sensational image quality and sharpness with virtually no distortion, Focal Length Range : 24 to 70 millimeter.
  • Minimum Focus Distance : 35 to 50 millimeter focal length : 1.2 feet (0.38 meter) from focal plane.
  • 24, 28, 70 millimeter focal lengths : 1.3 feet....
  • 4 stops of Vibration Reduction for handheld and low light shooting, Nonstick glass makes it easier to wipe off water, dirt and smudges.
  • Evolution of Nikon's legendary 24 to 70 millimeter workhorse.Type:Fmount, Type E AF S lens with built in CPU and F mount.Lens Elements:20.
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Sony SEL35F18 35mm f/1.8 Prime Fixed Lens

  • Features a bright maximum aperture of F2.8, compact dimensions and outstanding optical performance in a versatile 35mm focal length.
  • Minimum Focus Distance : 1.15 ft (0.35 m), Maximum Magnification ratio : 0.12x.
  • Carl Zeiss E-mount full-frame lens for Alpha a7 Series full frame camera bodies.Lens groups / elements-5/7.
  • Dust and moisture resistant design. Filter diameter- 49 mm. Angle of view- 44º (APS-C)63º (35 mm Full Frame). 35 mm equivalent focal length (APS-C)"....
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Sony 24-70mm f/4 Vario-Tessar T FE OSS Interchangeable Full Frame Zoom Lens

  • High performance E mount lens with excellent contrast.
  • Minimum Focus Distance : 1.48 (Wide) 3.12 ft (Tele), Maximum Magnification ratio : 0.11x, Focal Length : 18 105 mm.
  • Versatile 27 158mm (35mm equiv.) zoom range. Angle of view (APS C): 76° 15°. Number of aperture blades are 7.
  • Constant F4 maximum aperture throughout the zoom range. Filter diameter (mm):72 mm.
  • It is recommended that you use a lens hood to reduce flare and ensure maximum image quality.Focal Length (mm) 11/16 4 1/8 35 mm equivalent focal....
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SIRUI 75mm T2.9 1.6X Full-Frame Anamorphic Lens Cinema Lens RF Mount

  • SIRUI 75mm full-frame anamorphic lens-1.6x squeeze factor for wider Field of view.
  • An All-Round Player-This focal length is perfect for handling both close-ups and long shots. You can either get sharp distortion-free images shooting....
  • Being a 1.6x anamorphic lens, this lens features a wide-screen aspect ratio. This squeeze factor will result in 2.4:1 aspect ratio images when using a....
  • Shooting on this lens, you will get super crisp high resolution images (ready for 8K shooting), with the subject being exceptionally sharp yet the....
  • Focal Length: 75mm | Lens Mount: RF Mount | Aperture: T16-T2.9 | Maximum Magnification: 1:10.15 (V), 1:15.66(H) | Maximum Support Frame: Full Frame |....
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