Best Aperture Control Lenses

ZEISS Classic Planar ZF.2 T* 1.4/85 Telephoto Camera Lens for Nikon F-Mount SLR/DSLR Cameras

  • IDEAL APERTURE WITH NINE BLADES: The finely tuned features of the optical design on ZEISS SLR lenses ensure a spectacualr bokeh, with particularly harmonious effect of the blurred areas of the image. The nine diaphragm blades and the resulting, virtually circular aperture on ZEISS SLR lenses are crucial to favorable rendition of highlights in the foreground and background..
  • EXCELLENT IMAGE QUALITY: ZEISS lenses offer the highest possible standards in terms of performance, reliability and, of course, image quality. Quite simply, they are superior in every way. You can count on highly advanced flare control for crisp and brilliant images, and virtually zero geometric distortion, ensuring precise accuracy when reproducing shapes – especially useful when photographing products and architecture..
  • PRECISE MANUAL FOCUS: Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. ZEISS lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting t....
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Tokina atx-m 11-18mm f/2.8 Lens for Sony E, Black

  • Engineered from the ground up, Tokina has brought the legendary, multiple award winning technology from the ATX 11-16mm f2.8 to mirrorless cameras.  The new Tokina atx-m 11-18mm f2.8 sets the new standard for compact, fast aperture super wide-angle lenses specifically engineered to meet the high performance requirements of today’s crop-sensor mirrorless cameras..
  • At the heart of the new optical design are two aspherical elements combined with two super low-dispersion lenses that suppresses chromatic aberrations, nearly eliminates coma at the edges at f2.8, and produces superior contrast and color reproduction. Making the lens an excellent choice for any type of photography including astrophotography..
  • The lens is small with a maximum length of 3.2 inches (82.7mm) and weighs just 11.8 oz (335 g), 40% lighter than the original ATX 11-16mm f2.8. Making this lens an excellent choice for professionals and enthusiasts who shoot stills, create movies, use gimbals, and vloggers needing a super wide lens when talking to the camera..
  • The silent ST-M focusing motor provides fast and precise AF operation and is Fully compatible with Sony’s internal camera 5-axis image stabilization, Direct Manual Focus, MF Assist Mode, Eye AF, and in-camera Optical Correction ....
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Artisan Small Shark Linerlock D2 Black ATZ1707PSBBKF

  • 【4 Sets of Achromatic Doublets】: Dispersion is a common optical phenomenon, especially in fast lenses. 4 sets of Achromatic Doublets are used in M....
  • 【First Choice for Portrait & Close-up Beauty】: Its high speed and the unique aesthetics of its depth of focus makethis telephoto lens the frst....
  • 【Smooth Bokeh with Fast F/1.25 Maximum Aperture】: Extremely fast f/1 . 25 maximum aperture affords notable control over depth of hield for....
  • 【Support Macular Linkage】: Support the macular focusing of Leica/Voigtlander/Minolta and other paraxial m-port cameras ..
  • 【Wide Compatibility】: 90mm F1.25 camera lens is compatible with Leica M mount camera like M2 M3 M4 M5 M6 M7 M8 M9 M9P M10 M262 M240 M240P..
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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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