Top Aperture Control Lenses

K&F Concept Lens Mount Adapter Manual Focus Compatible with Canon EOS Lens to Sony Alpha Nex E-Mount Camera Body,Compatible for Sony NEX-3 NEX-5 NEX-5N a6000 a6500 NEX-C3 NEX-F3 Not Auto-Focus

  • MANUAL ADAPTER: This is Manual adapters without electronic contacts, which therefore don't support auto-focus or aperture control. You need to....
  • Smooth surface for effortless mount,infinity focus allowed.
  • Made of brass and aluminum (not plastic), anodized aluminum construction.Diaphragm control....
  • Compatible Cameras (Including, but not limited to): Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6000 a5000 a3500 a3000....
  • Please note: Infinity focus position：the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to....
  • As Canon's EOS lenses are electronically controlled，most Canon EF mount lenses do not feature a manual aperture ring，so when used on our canon to....
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Orion 09463 Mini Giant 9x63 Astronomy Binoculars (Black)

  • Orion Mini Giant 9x63 binoculars offer an ideal combination of aperture and moderate magnification for amazing views of celestial delicacies.
  • Light-grabbing binoculars with large 63mm aperture objective lenses excels at both astronomical and daytime viewing.
  • Binocular lenses and BAK-4 prisms are fully multi-coated with anti-reflection coatings for exceptional light transmission and bright images.
  • Extra-long 26mm eye relief lets eyeglass wearers take in the whole field of view in comfort without removing their corrective lenses.
  • Includes soft case to store and transport the binoculars, a deluxe wide neck strap and lens caps.
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Yongnuo YN42.5MM F1.7M II Medium Auto Focus Fixed Prime Lens, for Micro Four Thirds Cameras, Compatible with Olympus Panasonic

  • 【Features】F1.7 large aperture, 9 blades in 8 groups, including 2 ED ultra-low dispersion lenses. 7pcs Aperture blades, Auto Focus and Manual Focus.
  • 【Compatible with Olympus and Panasonic Cameras】Olympus: E-M5 Mark II, E-M10 mark III, E-M10 IV, E-PL9, E-PL10, PEN-F.
  • Panasonic: G100, GH5, G9, G95, G85, GX9, GX85, GF-10, GF-9, GF-8.
  • 【Micro 4/3 System Standard Prime Lens】Micro Four Thirds Lens Mount ( M4/3 MFT System), suitable for landscape, portrait, street snap, night scene and indoor scene..
  • 【F1.7 large aperture, support AF and MF】With an F1.7 large aperture, easy to blur the background. Support full-time manual focus, free to switch focus mode. The closet focusing distance is about 0.30m, and the maximum magnification is about 0.15 times..
  • 【High precision STM stepper motor】This 42.5mm F1.7M II lens equipped with high speed and high precision STM stepper motor. Cooperate with brand new control circuit, achieve fast, quiet and precise focus..
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Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Canon EF Bundle with USB Dock Advanced Travel Kit and 64GB Extreme PRO SD Card (5 Items)

  • BUNDLE INCLUDES: Sigma 24-70mm f/2.8 DG OS HSM ART Lens for Canon EF, Sigma USB Dock for Canon Lenses, Koah Tillary Messenger Camera Bag, and SanDisk 64GB Extreme PRO 170 MB/s UHS-I SDXC Memory Card.
  • CONSTANT APERTURE OF F/2.8: A constant aperture of f/2.8 through the zoom range makes this a highly versatile tool and a brand new Optical Stabilization (OS) system helps compensate for camera shake. Though a common focal length, the Sigma 24-70mm Art brings a new level of usability and durability featuring a rugged metal barrel and an emphasis on image quality.
  • OUTSTANDING OPTICAL PERFORMANCE: Three SLD (Special Low Dispersion) glass lens elements and four aspherical lens elements minimize optical aberrations. To ensure outstanding edge-to-edge image quality, the optical system minimizes coma, which causes points of light to streak, and transverse chromatic aberration, which cannot be corrected via aperture control. The optical system also minimizes distortion, which can be especially prominent in wide-angle shots.
  • QUIET AND FAST AUTOFOCUSING: HSM lenses employ a motor powered by ultrasonic waves that produce a quiet, yet high-speed autofocus. You can enjoy high performance with low noise in a variety of shooting situations. To ensure stability in focusing....
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ADC - 5610L-3 Diagnostic Wall Set with 3.5V LED Otoscope, 3.5V LED Coax Ophthalmoscope, and Specula Dispenser

  • Otoscope features fiber optic light transmission, optical glass, bidirectional swivel lens, and insufflator port. Compatible with Welch Allyn specula.
  • Coax Ophthalmoscope features high performance aspherical condenser lens. Ergonomic design and integral thumb rest. Rubber brow rest. Dust proof. Aperture viewing window. 29 viewing lenses, 24 aperture/filter combinations.
  • Handle CNC machined from solid brass, chrome plated in black with a ribbed surface for a sure grip. Electronic rheostatic light intensity control provides infinite continuous control. Bayonet mount compatible with all major brands of 3.5v instrument heads.
  • Wall transformer with magnetic switch activates power when handle is removed, powers off when replaced. Auto-off if handle is mis-cradled.
  • Includes specula dispenser. Install with included bracket or may be mounted to wallboard. UL approved.
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ZEISS Ikon Distagon T* ZM 1.4/35 Wide-Angle Camera Lens for Leica ZM-Mount Rangefinder Cameras, Black

  • ...t that exposures lack contrast and appear faded. To avoid this, ZEISS combines various specially developed technologies to reduce the undesirable effects of stray light..
  • MINIMIZED FOCUS SHIFT: ZEISS T* ZM-mount lenses are specifically designed to minimize focus shift with aperture changes – an important innovation with big benefits for rangefinder photography. As a result, you can expect improved accuracy of the rangefinder-defined focus while the precise 10-blade aperture with 1/3 stop interval click stops ensures exact exposure..
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Viltrox EF-EOS M Electronic AF Auto Focus Lens Mount Adapter for Canon EF/EF-S Lens to Canon EOS-M EF-M Mount Mirrorless Camera M1 M2 M3 M5 M6 M10 M50 M100

  • Compatibility: Viltrox EF-EOS M adapter allow Canon EF and EF-S Lenses to be used on Canon EOS-M mirrorless digital camera M2 M3 M5 M6 M10 M50 M100.
  • AF function & Aperture Control: The design has a built-in aperture motor and an electronic contact, which can control the aperture of the lens by....
  • EXIF signal transmitting: The design of gold plated PIN has excellent signal transmission performance while it supports EXIF signal transmission..
  • Built-in IS Stabilization: Built-in IS stability, making your focus more precise and clear, which better help you take pictures..
  • Material & Design: Designed with 1/4 screws at the bottom, which can be mounted on the tripod or other retention frame.
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The Man with the Movie Camera

  • 35mm SLR (Single-Lens-Reflex) camera with electronically controlled AE (Automatic Exposure) and focal plane shutter..
  • Canon FD series interchangeable lenses with full aperture metering and AE coupling. Canon FL series with stopped-down metering..
  • Standard lenses for the Canon AE are Canon FD 55mm f/1.2 S.S.C, Canon FD 50mm f/1.4 S.S.C, Canon FD 50mm f/1.8 S.C..
  • Canon Breech-Lock mount, Canon FD, FL and R lenses can be used. The viewfinder is fixed eye-level pentaprism with a field of view that is 93.5% vertical and 96% horizontal coverage of the actual picture.
  • Viewfinder information includes aperture scale with meter needle and stopped-down metering which also serves as a battery charge level check mark..
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Vintage Camera 35mm film for photographer T-Shirt

  • 35mm SLR (Single-Lens-Reflex) camera with electronically controlled AE (Automatic Exposure) and focal plane shutter..
  • Canon FD series interchangeable lenses with full aperture metering and AE coupling. Canon FL series with stopped-down metering..
  • Standard lenses for the Canon AE are Canon FD 55mm f/1.2 S.S.C, Canon FD 50mm f/1.4 S.S.C, Canon FD 50mm f/1.8 S.C..
  • Canon Breech-Lock mount, Canon FD, FL and R lenses can be used. The viewfinder is fixed eye-level pentaprism with a field of view that is 93.5%....
  • Viewfinder information includes aperture scale with meter needle and stopped-down metering which also serves as a battery charge level check mark..
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Fotodiox Pro Lens Mount Adapter Compatible with Nikon F-Mount G-Type Lenses to C-Mount Cameras

  • Compatible with Nikon F-mount G-type lenses on C-mount cameras (1.000 inch thread) such as Cine, CCTV / Machine Vision / Microscopes.
  • Enhanced craftsmanship and high-tolerance construction for demanding professionals.
  • Integrated aperture control dial for adjusting the lens aperture.
  • lens has no play, gap or wiggling when mounted on adapter and no adjustments required.
  • Precision all-metal construction with chrome plated brass mount for secure and solid lens fit.
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Fringer EF-FX PRO II Fuji Canon EF to Fuji X Adapter Autofocus Compatible with Canon EOS EF Lens to Fuji X Mount X-T4 X-T3 XT2 XT20 XH1 X100V X-H X-T X-PRO X-T30

  • 【Fringer EF-FX PRO II】The 2nd generation! - Redesigned aperture ring for more convenient operation - New MCU (more powerful, more resources for firmware update) - Better light absorbing design.
  • 【Electronic aperture ring】FOR PRO VERSION ONLY,just like XF lenses, each small step is 1/3 stop and the final position after the smallest aperture is 'Auto'.
  • 【Fast PDAF】DEMO OF X-T2 AND SIGMA 85/1.4 ART.
  • AF-S (central AF point), AF-S (side AF point) and AF-C Note: AF performance varies under different light conditions and for different lens models.
  • 【FAST AND ACCURATE PDAF! 】Only on cameras with X-Trans II & III CMOS. *Only for lenses optimized.
  • Support Image Stabilizer functions of EF mount lenses.
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Canon AE-1 35mm Film Camera w/ 50mm 1 1.8 Lens

  • 35mm SLR (Single-Lens-Reflex) camera with electronically controlled AE (Automatic Exposure) and focal plane shutter..
  • Canon FD series interchangeable lenses with full aperture metering and AE coupling. Canon FL series with stopped-down metering..
  • Standard lenses for the Canon AE are Canon FD 55mm f/1.2 S.S.C, Canon FD 50mm f/1.4 S.S.C, Canon FD 50mm f/1.8 S.C..
  • Canon Breech-Lock mount, Canon FD, FL and R lenses can be used. The viewfinder is fixed eye-level pentaprism with a field of view that is 93.5% vertical and 96% horizontal coverage of the actual picture.
  • Viewfinder information includes aperture scale with meter needle and stopped-down metering which also serves as a battery charge level check mark..
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