ReviewsEnhanced Focal Length

QWORK Headband Magnifier, Double Optical Lens Head-Mounted Reading Magnifier Hands Free Jeweler Loupe, 4 Replaceable Lenses for Reading, Repair (1.5X,2.0X,2.5X,3.5X)

  • 4 Replaceable Lenses: 1.5x 20" focal length / 2.0x 10" focal length / 2.5x 8" focal length / 3.5x 4" focal length, meeting your different magnification needs..
  • Comfortable to Wear: Adjustable headband makes the head more comfortable and tighter to wear. Lightweight material and soft breathable foam for comfort while operating..
  • Easy to Use: Two knobs on either side adjust the height of the magnifier to meet your viewing angle requirements. The visor can be tilted up and down as needed and moved out of the way when no longer needed..
  • Material: The housing frame is made of lightweight, durable and impact resistant materials, long term service..
  • Application: Perfect for jewelry work, reading, painting, repairing, sewing, soldering, jewelry making, needlework, arts and crafts and other hobbies..
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Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens for Pentax and Samsung Digital SLR Cameras Model A001P

  • 105-300mm equivalent focal length on APS-C cameras, 112-320mm equivalent focal length on Canon APS-C cameras.
  • Micromotor-type AF motor without full-time manual focusing.
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VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS M M2 M3 M5 M6 M10 M50 M100

  • 【Compatibility】VILTROX EF-EOS M2 Speed Booster compatible with Canon EF Lens to Cano EF-M Mount mirrorless camera EOS M M2 M3 M5 M6 M6II M10 M50 M50II M100 M200..
  • 【0.71x Focal Length Reducer 】Built-in optical correction group, when using this adapter, the focal length of lens should be shortened x0.71 based on the original,that is equivalent focal length = focal length x 0.71x camera conversion rate,which make the effective focal length smaller and the shooting range wider..
  • 【Aperture increased by 1 stop】EF-EOS M2 Speed Booster can increase one stop aperture to blur the background and better highlight the theme..
  • 【Auto Focus & Aperture Control】EF-EOS M2 Speed Booster with steady, fast and smooth autofocus, let you easy to shoot in the face of fleeting beauty. You can also adjust the aperture of EF lens by control EOS M series camera body..
  • 【EXIF signal transmitting & IS Function】Cooper gold-plated contacts with great conductivity enhance the EXIF info. Transmission between lens and camera body. Built-in IS function, making your focus much more precise an....
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Nikon AF-S FX NIKKOR 200-500mm f/5.6E ED Vibration Reduction Zoom Lens with Auto Focus for Nikon DSLR Cameras (Renewed)

  • 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 (0.41 meter) from focal plane.
  • 88.0 millimeter maximum diameter x 154.5 millimeter (distance from camera lens mount flange).
  • 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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Tamron Auto Focus 70-200mm f/2.8 Di LD IF Macro Lens for Canon Digital SLR Cameras Model A001E

  • 70-200mm focal length.Maximum Magnification Ratio 1:3,1 (f=200mm, MFD 0,95m).
  • 105-300mm equivalent focal length on APS-C cameras, 112-320mm equivalent focal length on Canon APS-C cameras.
  • Micromotor-type AF motor without full-time manual focusing.
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Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens with Built in Motor for Nikon Digital SLR Cameras Model A001NII

  • Diaphragm Blades: 9.105-300mm equivalent focal length on APS-C cameras, 112-320mm equivalent focal length on Canon APS-C cameras.
  • Micromotor-type AF motor without full-time manual focusing.
  • 77mm filtersMaximum Magnification Ratio :1:3,1 (f=200mm, MFD 0,95m).
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Sony SEL-20F28 E-Mount 20mm F2.8 Prime Fixed Lens (Renewed)

  • Minimum Focus Distance : 0.66 ft (0.2 m), Maximum Magnification ratio : 0.12x.
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BARSKA Starwatcher 700x70mm 525 Power Refractor Telescope with Altazimuth Mount and 3X Barlow Lens, Black (AE12934)

  • Beginner Telescope: The Starwatcher telescope is suitable for astronomy beginners to begin a lifetime journey to the stars and planets..
  • Quality Optics: The telescopes features 70mm aperture, 700mm focal length, and coated optics for enhanced image brightness and clarity..
  • Powerful Magnification: The high power 525 magnification brings you easily close up to the astonishing celestial bodies..
  • Multiple Accessories: The telescope comes with 3 eyepieces, 3x Barlow lens, 90 degree diagonal, and a red-dot finder, providing amazing experiences..
  • Easy Access: The smooth functioning altazimuth mount make it convenient for steady viewing..
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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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Sigma 35mm F1.4 Art DG HSM Lens for Nikon Black 3.7 x 3.03 x 3.03 340306

  • 35mm focal length, 52.5mm equivalent focal length on APS-C cameras, 56mm equivalent focal length on Canon APS-C cameras.
  • F16 minimum, This model is compatible with all current Nikon cameras (both DX and FX).
  • Ring-type ultrasonic-type AF motor with full-time manual focusing.
  • 67mm filters,0.30m/11.81" minimum focus. Maximum Magnifications-1:5.2. Angle of View-63.4º.
  • Available in Canon EF, Nikon F (FX), Pentax KAF3, Sony Alpha, Sigma SA mounts. Please refer the User Manual which is in the Product Box before use..
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Rokinon FE14M-E 14mm F2.8 Ultra Wide Lens for Sony E-mount and Fixed Lens for Other Cameras (Renewed)

  • Ultra-wide angle of view on both full frame and APS-C cameras.Lens has a minimum focusing distance of 0.9' (28 cm) for enhanced close-up shots..
  • Excellent construction and superior build quality for razor sharp images.
  • Features built-in petal type hood, Focal Length :14mm.
  • Lens has a minimum focusing distance of 0.9' (28 cm) for enhanced close-up shots, Lens not zoomable. No autofocus..
  • Super multi-layer coating to reduce flares and ghost images.
  • Aspherical lens elements improve peripheral image quality. Circular diaphragm (7 blades) delivers beautiful, soft backgrounds.
  • Optical Image Stabilizer provides up to 4 shutter speed stops of correction..
  • Ring USM, high-speed CPU, and optimized AF algorithms for fast auto focusing with a minimal focusing distance of 0.23m..
  • Full-time manual focus for manual adjustment while in AF mode with silent and smooth operation making it suitable for video recording..
  • Aspherical lens elements improve peripheral image quality..
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