Best Focal Length

SmallRig Mini Follow Focus with A/B Stops & 15mm Rod Clamp and Snap-on Gear Ring Belt for DLSRs and Mirrorless Cameras Fits Different Diameter Lenses Up to 114mm - 3010

  • ...atible with the most cameras on the market like DLSRs & Mirrorless Cameras. In addition, it features a super lightweight design with only 195g, compact and portable, easy for carrying outside..
  • 【ADJUSTABLE A/B STOPS】The A/B hard stops of the follow focus are adjustable, you can adjust the suitable A/B focal length according to your shooting needs. Moreover, by turning on/off the AB stops lock, you can realize the easily switch of focal length between 360° unlimited zoom and A/B focal length..
  • 【ANTI-SLIP & ANTI-SWEAT DESIGN】The Mini Follow Focus 3010 imitates sports car hub, adopts anti-slip and anti-sweat design, and its excellent damping feeling and ergonomic design helps to control the focal length you need more accurately and comfortable, thus realizing a better shooting..
  • 【MODULAR DESIGN】SmallRig Follow Focus 3010 adopts modular design that allows for assembling and disassembling on the left and upper sides of the camera rapidly and easily. Besides, the included 15mm Rod 1050 and Rod Clamp (with NATO rail) 3011 allows for attaching other SmallRig accessories such as NATO Side Handle 2187, Super Clamp Mount 1124 to improve the compactness of your equipment..
  • 【MULTIPLE SHOOTING SCENES】The installation angle of this follow focu....
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Venus Optics Laowa 9mm f/2.8 Zero-D (Canon EOS-M Mount)

  • FOCAL LENGTH: 9mm focal length with f/2.8 aperture.
  • COVERAGE: 12cm minimum focusing distance.
  • ultra wide-angle coverage up to 113-degree angle of view.
  • CONSTRUCTION: 2 aspherical elements plus 3 extra-low dispersion elements.
  • SIZE: Tiny size and light weight with 49mm filter thread diameter.
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Nikon AF-S Nikkor 50mm f/1.8G Lens

  • 50 millimeter focal length and maximum aperture of f/1.8.
  • Great for portraits, action, and nighttime photography.
  • Angle of view (horizontal, vertical, diagonal): 40º, 27º,46º.
  • Minimum focusing distance of 1.15 feet (0.35 meter) and a maximum magnification of 0.21x.
  • Stepping motor (STM) delivers near silent, continuous move Servo AF for movies and smooth AF for stills.
  • 80 millimetre effective focal length on APS C cameras, 50 millimetre on full frame cameras. Lens construction: 6 elements in 5 groups.
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Carson SkySeeker Newtonian Reflector Telescope with Dobsonian Mount 15-37.5X Blue JC-200

  • Magnification: 15x - 37.5x | Aperture: 76mm (3.0 inch) | Focal Length: 300mm.
  • Dobsonian Mount Telescope | Weight: 3.7 lbs. | Color: Metallic Blue.
  • Compact and Easy to Use- No Assembly Required | The precision optics offer great images of the moon and planets.
  • Included Accessories: 8mm and 20mm Huygenian eye pieces and dobsonian mount.
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Sony - E 10-18mm F4 OSS Wide-Angle Zoom Lens SEL1018 ,Black

  • Angle of View (APS-C) - 109 ° – 76 °.
  • Minimum focal length of 10 mm (15 mm in 35 mm-camera equivalency).
  • Minimum Focus Distance : 0.82 ft (0.25 m), Maximum Magnification ratio : 0.1x.
  • Minimum: f/22. 35mm equivalent focal-length (APS-C) : 15-27mm.
  • In-the-box:Hood (ALC-SH123), Lens front cap, Lens rear cap.
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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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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 14-42mm F3.5-5.6 EZ Lens for Micro Four Thirds Cameras Silver

  • Collapsible, portable electric zoom lens.
  • 3x zoom range covers everything from landscapes to portraits.
  • Remote control of zoom available with smart phone app.
  • Optional auto closing lens cap available. Closest focusing distance-0.2m (focal length 14mm) / 0.25m (focal length 42mm).
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Canon EF 16-35mm f/4L is USM Lens - 9518B002, Black

  • 50 millimeter focal length and maximum aperture of f/1.8.
  • Great for portraits, action, and nighttime photography.
  • Angle of view (horizontal, vertical, diagonal): 40º, 27º,46º.
  • Minimum focusing distance of 1.15 feet (0.35 meter) and a maximum magnification of 0.21x.
  • Stepping motor (STM) delivers near silent, continuous move Servo AF for movies and smooth AF for stills.
  • 80 millimetre effective focal length on APS C cameras, 50 millimetre on full frame cameras. Lens construction: 6 elements in 5 groups.
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Celestron 93436 Luminous 2-Inch 2.5x Barlow Lens (Silver)

  • This big, 4-Element 2x Barlow will give your 2 inch telescope eyepieces a power-doubling magnification boost.
  • Sophisticated fully multi-coated, 4-element lens design renders exquisite images without introducing additional chromatic aberration for crisp, color-correct views.
  • Enjoy twice the power while maintaining comfortable eye relief and edge sharpness of longer focal length 2 inch eyepieces.
  • Included step-down adapter allows use with both 2 inch and 1.25 inch size eyepieces.
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