Best Auto Back Focus

Mcoplus Extnp Auto Focus Macro Extension Tube Set (12mm 20mm 36mm) for Nikon AF AF-S DX FX SLR Cameras

Compatibility: Work with Nikon AF AF-S DX FX SLR Cameras, including D5300, D5000, D3000, D3200, D5100, D5200, D3100, D7000, D7100, D4, D800, D800E, D600, D610, D40, D40x, D50, D60, D70, D80, D90, D100, D200, D300, D3, D3S, D700.
Function: Transform common lens into macro lens to capture the high quality images of small objects, enter the macro world..
Auto Focus：when installed the tubes, it needs appropriate ocusing distance(1-3cm) space to auto-focus function..
Tube diameter : ab.69mm. Tube Lengths: (1) 12mm.(2) 20mm.(3)36mm, use alone or combinations..
Note: when use 3 tubes together, there is a little difficult to auto focus. Suggest use manual focus or Increase the lens focal lengths to avoid blurry..

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YONGNUO YN85mm F1.8S DF DSM, Medium Telephoto Prime Lens for Sony E Mount, Full Frame Portrait Lens

...e the light transmittance and suppress back-light ghosts and glare..
YN85MM F1.8S is designed with 7 circular aperture blades, it can shoot circular diffuse spots. It can also take pictures with 14 star effects if the aperture is appropriately reduced..
It's designed for full-frame Sony E-Mount cameras, supports Auto Focus and Manual Focus, it's quipped with quiet DSM stepping motor, can quick start-stop response, high focusing accuracy, and quieter focusing action, which is suitable for photo shooting and video recording.
The lens is equipped with a low-dispersion glass lens, which can effectively suppress the dispersion problem, and it also supports USB Type-C firmware upgrade, you can download the latest firmware to upgrade the lens to keep the lens at its best performance.
The lens adopts high-precision metal bayonet and gold-plated contacts, which can effectively improve signal conductivity and corrosion resistance. At the same time, it can maintain reliable communication between the camera and the lens, and realize functions such as auto focus, aperture control, and EXIF information transmission..

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Sony SEL90M28G FE 90mm f/2.8-22 Macro G OSS Lens for Mirrorless Cameras (Renewed)

A perfect match for α7 series, 35mm full-frame E-mount cameras, 90mm Macro with a bright F2.8 maximum aperture, Nano AR coating effectively suppress reflections, Dust and moisture resistant design.
Minimum Focus Distance : 0.92 ft (0.28 m), Maximum Magnification ratio : 1.0x, Focal Length : 90 mm. The angle of view is 27 degree (35 mm) and 17 degree (APS-C).
Optical Steady Shot image stabilization for handheld shooting, Instant manual/auto focus selection via a sliding focus ring, Instant manual/auto focus selection via a sliding focus ring.
Corner to corner sharpness w/ Advanced Spherical elements, Super ED glass w/ multi‐coating reduces flare and ghosting, 9-blade circular aperture contributes to gorgeous bokeh.
Direct Drive SSM (DDSSM) for quiet, precise focusing.

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YONGNUO YN50mm F1.8N Standard Prime Lens Large Aperture Auto Manual Focus AF MF for Nikon DSLR Cameras

【Features】F1.8 large aperture, 6 blades in 5 groups, 7pcs Aperture blades. Auto Focus and Manual Focus.
A great prime lens that is an excellent addition to the Nikon 12-50mm kit lens.
Supports auto focus and manual focus modes.
Supports full-frame and APS-C format cameras.
Adopts gold plated metal contacts, which effectively improves the signal conductivity and corrosion resistance.
Supports M/AV/TV/P and other camera shooting modes, and parameters used to take pictures can be displayed in the EXIF Information.

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SVBONY SV165 Mini Guide Scope 30mm F4 Finder Scope Guide Scope for SV305 Pro ZWO QHY Orion Auto Guiding Cameras

Compatible with mainstream auto guiding cameras.
1.25in and M42 mount interface designed for compatible with SV305 Pro and for Orion ZWO QHY and so on auto guiding cameras(Some camera models require additional accessories to assist in focusing).
Ultra wide band fully multilayer coated lens.
doublet glass and the 30mm achromatic optics prevent irritating reflections can bring you bright and clear images.
Allows easy and precise focus adjustments and f4 aperture optics provides a very wide field of view which will help to quickly find the target when performing astronomical observations.
Comes with the mounting rings with plastic tipped screws as not to scratch the scope tube and it can be moved to any position.
By using high-level CNC metal processing technology.
SV165 guide scope has exquisite appearance.
fine workmanship bringing you visual enjoyment.

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AFM Safecoat Safe Seal Gallon

【SOFTWARE SYSTEM】 Windows 7/Windows 8/Windows 10/ Windows XP / Windows 2000 operating system, static, dynamic image continual capturing and replaying, many images in one screen.
easy for measuring, calculating, copying, editing freely, printing multi-format report, including the diagnosis database, offering the case analysis of reference.
【POWER IMAGE FUNCTION】Continuous capturing static images function makes it can browse the dynamic dozens of image.
Capacity of cine loop and record continuously for different frequencies dynamic image in sampling.
Image database can be edited at any time, and dynamic review dozens of images..
【INTERNAL MEASURING LIGHT】AWB way internal automatically measuring light, brightness auto adjustment and electronic shock-proof function, dynamic balance of focusing around。Quick focus CCD technique makes examination, observing, operating more conveniently.
【DSP DYNAMIC AUTO FOCUS】DSP dynamic auto focus system, 8 times digital zoom cooperating with the manual focal length adjustment, super near camera, can get the clear image far from 0.1m.
【COLOR DIGITAL OPTICAL ZOOM LENS】High-quality 1/4 inch color digital optical zoom lens, 18 times optical zoom, 800.000 pixels providing whole screen high-definition images.

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[Auto Focus] Projector with WiFi 6 and Bluetooth 5.2, 480 ANSI Projector 4K, WiMiUS P62 Native 1080P Outdoor Movie Projector, Auto 6D Keystone & 50% Zoom, Smart Home Projector for Phone/PC/TV Stick

➤【Innovative Auto Focus and Auto Keystone Correction】WiMiUS 2023 newest auto focus projector is here! P62 video projector adopts auto-focus and 6D auto-keystone technology, Say goodbye to troublesome manual adjustment, and you can get a clear rectangular picture within 5 seconds after starting up! The built-in displacement sensor can detect the movement of the projector at all times. Even if the projector is moved, the P62 can automatically adjust the focus and correct the image..
➤【Native 1080P & 480 ANSI & 20000:1 Contrast Ratio】P62 WiFi and Bluetooth projector adopts imported concentrating technology glass lens, with high-definition native 1080P and 20000:1 high dynamic contrast ratio, and supports 4K video. With 99% NTSC technology, it highly restores the original image without compressing the picture quality, giving you the best game and movie look and feel..
➤【The First Wi-Fi 6 Projector】Wi-Fi 6 is not only compatible with 2.4GHz and 5GHz networks, the maximum rate can reach 9.6G bps. As the first projector equipped with WiFi 6, the P62 can achieve smoother and more stable content transmission when used with a WiFi 6 router, and the projection will no longer be delayed and stuck, which greatly improves the gaming experience and ....

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Sony SEL90M28G FE 90mm f/2.8-22 Macro G OSS Standard-Prime Lens for Mirrorless Cameras,Black

A perfect match for α7 series, 35mm full-frame E-mount cameras, 90mm Macro with a bright F2.8 maximum aperture, Nano AR coating effectively suppress reflections, Dust and moisture resistant design.
Minimum Focus Distance : 0.92 ft (0.28 m), Maximum Magnification ratio : 1.0x, Focal Length : 90 mm. The angle of view is 27 degree (35 mm) and 17 degree (APS-C).
Optical Steady Shot image stabilization for handheld shooting, Instant manual/auto focus selection via a sliding focus ring, Instant manual/auto focus selection via a sliding focus ring.
Corner to corner sharpness w/ Advanced Spherical elements, Super ED glass w/ multi‐coating reduces flare and ghosting, 9-blade circular aperture contributes to gorgeous bokeh.
Direct Drive SSM (DDSSM) for quiet, precise focusing.

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Logitech for Creators StreamCam Premium Webcam for Streaming and Content Creation Full HD 1080p 60 fps Premium Glass Lens Smart Auto-Focus for PC/Mac – Graphite

Full HD 1080p at 60 fps — Stream and record in full 1080p HD resolution at 60 fps for sharp, natural video with smooth motion..Focus: Autofocus(10 cm to infinity) / face based autofocus with Logitech Capture.
Premium Glass Lens with Smart Auto-Focus — Capture vibrant, true-to-life image quality with crisp details using StreamCam’s premium glass lens and smart auto-focus system. Cable: Length: 5 ft (1.5 m) USB - C3.1 cable.
Auto-Framing and Intelligent Exposure—Auto-framing keeps you in the center of the shot, even as you move left or right, while intelligent exposure ensures you look good in varying lighting conditions..
Optimized for Popular Live Streaming Software — Effortlessly stream to Twitch, YouTube and more using popular live streaming software like Open Broadcaster Software (OBS), XSplit and Streamlabs OBS..
Versatile Mounting Options — Achieve the perfect framing with landscape or portrait modes and mount on your monitor or directly on a standard tripod..

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