Reviews Lens Focus Adjustment

OMAX 3.5X-90X USB3 18MP Digital Trinocular Zoom Stereo Microscope on Desk Stand with 144-LED Light

  • Head: 45 degrees inclined 360 degrees rotatable trinocular.
  • Eyepieces: 30mm widefield WF10X/20 and WF20X.
  • Beam split lever enables photo-tube or left eye-tube.
  • Interpupillary distance: adjustment 2-3/16inch ~ 2-15/16inch(55mm ~ 75mm).
  • Diopter: adjustable on both ocular-tubes +/-5dp.
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SmallRig Rosette Side Handle with Record Start/Stop Remote Trigger for Multiple Selected Cameras- 3324

  • 【STANDARD 0.8 MOD】SmallRig Seamless Focus Gear Ring 3293 is designed to fit lenses for precise and stable focal length adjustment. It features standard 0.8 MOD and allows you to add 0.8 MOD gears to a compatible lens for use with cine follow focuses..
  • 【FITS LENS PERFECTLY】Moderate stiffness, SmallRig Φ72-Φ74 Seamless Focus Gear Ring 3293 fits lens perfectly. This 72mm to 74mm size fits virtually all lenses of the same outer diameter..
  • 【SUPPORT 360° ROTATION】It makes less noise and no distortion, allowing 360º smooth rotation and precise focus adjustment..
  • 【SEAMLESS SWITCHING】The ring is made by elastic material, suits lens seamlessly and evenly. (Please Note: Gear slippage or jam may occur when mounted onto lenses larger than Φ72-Φ74mm across.).
  • 【RELATED ACCESSORIES】The ring 3293 can work with SmallRig Mini Follow Focus 3010 and other follow focus systems, such as Seamless Focus Gear Ring 62.5 to 64.5mm 3291, 66 to 68mm 3292, 75 to 77mm 3294, 78 to 80mm 3295, 81 to 83mm 3296..
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Irix Blackstone 15mm f/2.4-22 Ultra Wide Angle Lens with Built-In Chip for Nikon EF Digital SLR

  • IRIX 15 mm f2.4 wide-angle lens with Nikon F bayonet for full format for impressive landscape, travel and architectural photography, optimised focus ring for soft and precise adjustment.
  • Lightweight design ideal for travel photography, classic design meets perfect handling, made of high-quality aluminium and magnesium, lens for sensors with 50+ megapixel of DSLR cameras..
  • Engraved, leuting markings for optimal adjustment in low light, neutral rinio coating for almost no image errors, precise sharpness, focus range: 0.28 m, 9 round aperture rings..
  • Splash-proof thanks to different rubber seals for all weather, filter window for optimal mounting of grey UV and polarising filters (size 95 mm) and a gelatin filter on the back..
  • Box contents: 1x Irix ultra-wide angle Blackstone 15 mm f2.4 lens for Nikon F (95 mm filter thread, for full format, luminous lettering, optimised focus ring).
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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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K&F Concept Lens Mount Adapter EOS EF/EFS Lens to Fuji FX Mount X-Pro1 X Camera X-Series Mirrorless Cameras

  • With this lens mount adapter, you can use EOS EF / EFS Lens on a Fuji FX Mount Camera body, such as X-Pro1 X-E1 X-E2 X-A1 X-M1 X-T1..
  • There are no electrical contacts in the adapter ring, exposure and focus has to be adjusted manually..
  • Made of brass and aluminum (not plastic).Diaphragm control of the lens is set manually..
  • Compatible with Fuji FX Mount Camera X-Pro1 X-E1 X-E2 X-A1 X-M1 X-T1..
  • Please note: Infinity focus position：the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity..
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BadAce No Drill Picatinny Rail Low-Profile Full-Length Scope Mount for Mauser K98k Gen 3

  • Fast Focus Eyepiece with 1/4" Fingertip Resettable Windage & Elevation Adjustments.Green laser Reaching Distance about 200m-500m，Detachable Green laser sight with independent switch,Best Choice for Shooting-With Long Eye Relief:66.8-99.06mm，Field of View:13.41-40.38 @100yards,Exit Pupil:3.3mm-10mm.Wide Magnification 4X-16X provide you a big view at 200-1000YARDS.5 Levels Red and Green Illuminated adjustment brings a better view in dark environment..
  • Updated:Add Front Focus Adjustment.Make it more eaiser to operate.The scope is Red and green Multi-X reticles with 5 levels；Exit Pupil：3.3mm-10mm；Field of View：10' ~ 27' @ 100yards；Eye Relief：3" ~ 3.4"；Windage & Elevation Click Value：1/4' @ 100 yards.
  • With 50mm Beautiful Flower Object Lens makes your scope become unique in Amazon.High grade fully coated optical lens, High quality matte black finish,Dry nitrogen filled with makes 100% waterproof,shock proof,fog proof..
  • Update Lens Cover gets hard to be broken.Better quality makes it Much More Stable on your hunting rifle .Multi Mode LED Flashlight.
  • Integrated rails offers ample space for accessories.Best Customer Service for Everyone.
  • High grade fully coated optical lens, Dry nitrogen filled with waterproof,shock proof,fog proof. Magnificati....
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Rokinon 135mm F1.8 AF Full Frame Auto Focus Telephoto Lens for Sony E Mount Cameras

  • Fast & quiet AF and well-controlled breathing for shooting video.
  • Focus Hold Button - Pressing this button on the lens will keep the lens locked to that focusing distance. You can assign functions such as Eye AF in settings on the camera body..
  • Custom Switch - There is a custom switch, which can be set to allow adjustment of the aperture silently by rotating the focus ring. Using the optional Lens Station, you can set up the mode to suit your own preference..
  • The Focus Range Limiter only operates in AF mode. It is useful when the distance from an object has been determined. Move the Focus Range Limiter forward or backward to select the focus range. - FULL: The AF range is set to infinity at a minimum focus distance of 0.69m. (AF search may take slightly longer.) - 0.69m - 2m: The AF range is set between 0.69m and 2m, which is suitable for close-up shooting. - 1.5m - ∞: The AF range is set from 1.5m to infinity, which is suitable for normal shooting..
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Celestron 20x100 SkyMaster Porro Prism Binoculars Bundle with LensPen Cleaning Tool and Bino Harness 3 Items

  • Bundle Includes: Celestron 20x100 SkyMaster Porro Prism Binoculars, LensPen Optics Cleaning Tool, and Binocular Harness.
  • Large Objective Lens: Giant 100mm objective lens offers maximum image brightness in low-light and long-range conditions.
  • Easy Focus Adjustment: Offers ultra-sharp focus across the field of view and individual Eyepiece Focus ensures optimal focus position.
  • Ideal Usage: 25x Magnification porro prism binoculars is suitable for long-range terrestrial or astronomical viewing.
  • Material: It has protective rubber covering for an ultra-firm grip.
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4-16x50AO Rifle Scope Combo Dual Illuminated with Green Laser Sight 4 Holographic Reticle Red/Green Dot for Weaver/Rail Mount

  • Fast Focus Eyepiece with 1/4" Fingertip Resettable Windage & Elevation Adjustments.Green laser Reaching Distance about 200m-500m，Detachable Green laser sight with independent switch,Best Choice for Shooting-With Long Eye Relief:66.8-99.06mm，Field of View:13.41-40.38 @100yards,Exit Pupil:3.3mm-10mm.Wide Magnification 4X-16X provide you a big view at 200-1000YARDS.5 Levels Red and Green Illuminated adjustment brings a better view in dark environment..
  • Add Front Focus Adjustment.Make it more eaiser to operate.The scope is Red and green Multi-X reticles with 5 levels；Exit Pupil：3.3mm-10mm；Field of View：10' ~ 27' @ 100yards；Eye Relief：3" ~ 3.4"；Windage & Elevation Click Value：1/4' @ 100 yards.
  • With 50mm Beautiful Flower Object Lens makes your scope become unique in Amazon.High grade fully coated optical lens, High quality matte black finish,Dry nitrogen filled with makes 100% waterproof,shock proof,fog proof..
  • Updated:New Updated: New Quick Installing Red Dot.Mount On and Off in Just 1 Second .No Need the Screwdriver Anymore.Update Lens Cover gets hard to be broken.Better quality makes it Much More Stable on your hunting rifle .Multi Mode LED Flashlight.
  • Integrated rails offers ample space for accessories.Best Customer Service for Everyone....
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SIRUI 24mm Anamorphic Lens F2.8 1.33X APS-C Camera Lens (MFT Mount)

  • The anamorphic element group in the lens squeezes the horizontal field of view 1.33 times to produce the 2.4:1 aspect ratio. As the focal length shortened to 24mm, the angle of view also gets wider, rendering an expansive horizon..
  • One of the obvious changes for the 24mm lens is reducing the minimum focusing distance to 0.6m, therefore, you don’t have to back away too much to focus the subject when shooting space is limited..
  • Not just for video use, this lens allows you to distinguish your photo from a standard 16:9 photo, with all the noticeable anamorphic elements including a spectacular 2.4:1 rectangular look, blue light streak, and oval bokeh..
  • The precision aluminum alloy enhances the strength of the lens housing. Assembling with the solid housing, the copper Aperture and Focus rings are designed with an anti-slip teeth surface for smooth, comfortable focus and light adjustment..
  • The high-class Schott glass lens elements with Nano-coating can suppress aberration and vignette, rendering excellent resolution and sharpness to a cinematic image..
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Samyang 135mm F1.8 AF Full Frame Auto Focus Telephoto Lens for Sony E Mount Cameras, Black, (SYIO13518-E)

  • Fast & quiet AF and well-controlled breathing for shooting video.
  • Focus Hold Button - Pressing this button on the lens will keep the lens locked to that focusing distance. You can assign functions such as Eye AF in settings on the camera body..
  • Custom Switch - There is a custom switch, which can be set to allow adjustment of the aperture silently by rotating the focus ring. Using the optional Lens Station, you can set up the mode to suit your own preference..
  • The Focus Range Limiter only operates in AF mode. It is useful when the distance from an object has been determined. Move the Focus Range Limiter forward or backward to select the focus range. - FULL: The AF range is set to infinity at a minimum focus distance of 0.69m. (AF search may take slightly longer.) - 0.69m - 2m: The AF range is set between 0.69m and 2m, which is suitable for close-up shooting. - 1.5m - ∞: The AF range is set from 1.5m to infinity, which is suitable for normal shooting..
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Vello LENS-2020 Lens Calibration Tool

  • This compact ruler allows you to determine if your lens is auto-focusing accurately as it should. It is an essential tool that is particularly useful when shooting with a shallow depth of field, where focusing should ideally be "spot on"..
  • You can use this ruler to determine how "off" the focusing is for a particular camera / lens combination and, on supported cameras, adjust the camera's auto-focus settings to resolve this.
  • On Nikon cameras, this feature is known as "AF Fine Tune". On Canon and Sony cameras, it's known as "AF Micro Adjustment". Please refer to your camera's instructions manual to see if this feature is present..
  • Package Included: Lens Focus Calibration Card X 2.
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K&F Concept Lens Mount Adapter Ring Compatible with Canon FD Lens to Micro Four Thirds M4/3 Olympus Pen and Panasonic Lumix Cameras

  • Surface for effortless mount,infinity focus allowed..
  • Made of brass and aluminum (not plastic), anodized aluminum construction..
  • Please note: It is not same between FD mount and EF mount, this adapter ring is only compatible for Canon FD mount lens, please contact us if you want to purchase compatible for Canon EF mount lens..
  • Compatible Cameras (Including, but not limited to): Olympus PEN E-PL1, E-PL1s, E-PL2, E-PL3, E-P2, E-P3, E-M, OM-D, E-M5, E-M10, Panasonic Lumix DMC-G1, G2, G3, G10, GX1, GH1, GH2, GF1, GF2, GF3, GF5, GH4, Panasonic AG-AF100 Mirrorless Digital Cameras..
  • Please note: Infinity focus position：the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity..
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