ReviewsDistortion Correction

Nikon AF FX NIKKOR 20mm f/2.8D Fixed Zoom Lens with Auto Focus for Nikon DSLR Cameras

Compact ultra-wide-angle lens construction.
Superb optical design for Architecture, wedding, and landscape photography.
94-Degree (70-degree with Nikon DX Format) picture coverage with edge-to-edge sharpness.
Close range correction for distortion-free pictures as close as 0.85 feet.
Nikon super integrated coating for minimized flare and ghost, providing good color balance.

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Taotaole Multi-media Mini 800 Lumens Portable LED Projection Micro Home Theater Projector

Native Resolution 800x480 Brightness 800 Lumens Contrast 800 1 Aspect Ratio 4 3by16 9.
Image size 30 to120 Inches Projection distance 3 5 to12 5 Feet With keystone correction Adjusting the picture trapezoidal distortion.
Multi tofunction input AVbyUSBbySDbyHDMIbyMicro USB 50W low power cost.
LED lamp 20 000 hours life Portable design easy to take and travel Great for outdoor movies Not recommended for PPT or business presentation ideal for....
Put 2 brand new AAA batteries in the remote Aim at the IR receiver of the projector this is very important steps as the projector is controlled by IR.

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3M Full Facepiece Reusable Respirator 6800, Paint Vapors, Dust, Mold, Chemicals, Medium

Enhanced Comfort: Lightweight, well balanced, full face respirator design and Silicone Face Seal for enhanced comfort and durability.
Breathe Easier: 3M cool flow valve helps provide cool, dry comfort.
Directs Exhaled Breath Downward: Unique center adapter directs exhaled breath and moisture downward.
Large Lens: Provides a wide field of view for excellent visibility.
Integrated optical correction limits distortion as you look from left to right.
Easy Cleaning: Smooth surface allows for Quick and Easy Cleaning.
Meets requirements of ANSI Z87.1 2010 for high impact (Z87-plus).
Combine with 3M particulate filters or chemical cartridges to help provide respiratory protection against particulates (dust, fumes, mold, etc) and gases and vapors (paint, acid, chemicals, etc.).

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3M Full Facepiece Reusable Respirator 6700, Paint Vapors, Dust, Mold, Chemicals, Small

ENHANCED COMFORT: Lightweight, well-balanced, full face respirator design and silicone face seal for enhanced comfort and durability..
BREATHE EASIER: 3M Cool Flow Valve helps provide cool, dry comfort..
DIRECTS EXHALED BREATH DOWNWARD: Unique center adapter directs exhaled breath and moisture downward..
LARGE LENS: Provides a wide field of view for excellent visibility. Integrated optical correction limits distortion as you look from left to right..
EASY CLEANING: Smooth surface allows for quick and easy cleaning..
Meets requirements of ANSI Z87.1-2010 for high impact (Z87+)..
COMBINE WITH 3M particulate filters or chemical cartridges to help provide respiratory protection against particulates (dust, fumes, mold, etc.) and gases and vapors (paint, acid, chemicals, etc.).
For industrial,occupational use only. Not for consumer sale or use..

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3M Full Facepiece Reusable Respirator 6900, Paint Vapors, Dust, Mold, Chemicals, Large

ENHANCED COMFORT: Lightweight, well-balanced, full face respirator design and silicone face seal for enhanced comfort and durability..
BREATHE EASIER: 3M Cool Flow Valve helps provide cool, dry comfort..
DIRECTS EXHALED BREATH DOWNWARD: Unique center adapter directs exhaled breath and moisture downward..
LARGE LENS: Provides a wide field of view for excellent visibility. Integrated optical correction limits distortion as you look from left to right..
EASY CLEANING: Smooth surface allows for quick and easy cleaning..
ANSI REQUIREMENT: Meets requirements of ANSI Z87.1-2010 for high impact (Z87+)..
COMBINE WITH 3M particulate filters or chemical cartridges to help provide respiratory protection against particulates (dust, fumes, mold, etc.) and gases and vapors (paint, acid, chemicals, etc.)..
For industrial/occupational use only. Not for consumer sale or use..

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Taotaole Multimedia Mini 1200 Lumens Pro Wireless Portable LCD LED Home Theater Projector Support 1080P With IP/IR/USB/SD/HDMI/VGA

Aspect Ratio: 4:3/16:9, not recommended for PPT or business presentation, ideal....
For perfect sound, we recommend customer connect an external speaker (Via the 3.5 mm headphone jack, or via the 3-In-1 audio&video port).The USB port....
Image size: 30-120 Inches, Projection distance: 3.5-12.5 Feet. With keystone correction, adjusting the picture trapezoidal distortion. We suggest best....
Portable design, easy to take and travel. Support: Multi-media (Music, Picture, Video, TXT).
Connect your PC / Laptop / DVD Player to enjoy videos or....

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Action Camera 4K WiFi Waterproof Underwater Camera 170° Wide Angle Ultra HD Sports Cam with 2 Batteries and Accessories

【NATIVE 4K/30FPS ULTRA HD VIDEO】Professional video at 4K(3840x2160)/30fps, 2.7K/30fps, 1080P/120fps, 20P/240fps and 16MP photos enable you to....
【WATERPROOF CAMERA UP TO 30M】Put the camera into the included waterproof case and securely fasten it, you can dive up to 30M (100ft) in depth.....
【BUILT-IN WIFI & HDMI】Connect this sports camera to your smartphone or tablet through APP "DV King 4K" (compatible with iOS and Android System),....
【170° WIDE ANGLE】Featuring 170° wide angle and distortion correction, the action camera delivers you normal pictures just as a digital camera....
【VARIOUS MODES & ACCESSORIES】Awesome modes like video recording, slow motion, loop recording, time lapse, photo mode, burst photo, together with 2....

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Tilt Shift Lens 50mm F1.6 E Mount Tilt Shift Manual Full Frame Lens for Sony A9 A7 Series Mirrorless Camera

【Full Frame】Full‑frame lenses in full‑frame SLRS can assure high quality imaging, while in half‑frame SLRS can improve image quality, create....
【E Mount】High quality precision mechanisms, including six elements of the five optical designs, enable correction of perspective distortions of....
【F1.6-F22 Aperture】The optics of the tilt shift lens allow you to take clear, contrasting images with perfect colors. When photographing....
【Tilt Shift Lens】The TS lens allows to compensate for perspective distortion, change the depth of field and sharpness zone, and soften the image....
【Manual Focus】Adopt high quality alloy and optical glass material, firm and durable, provide longer service life..

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Optoma DH351 1080p Full HD Office & Education Projector for Meeting Rooms and Classrooms | Bright 3,600 Lumens for Lights-on Viewing | HDMI Connectivity | Up to 15,000-hr Lamp Life

...et - 120").Built-in HiFi Stereo Speakers provide clear well-balanced sound quality, can bring you an excellent listening experience without external speakers..
±30° Keystone Correction & Focus: Equipped with ±30°keystone correction, Brilens Performance full HD movie projector reduces vertical or horizontal image distortion effectively. Digital focus capabilities allows the screen size of the projector can be individually adjusted by remote control without changing the projection distance frequently..
Multimedia Projector connection: can connect with HDMI, USB , AV Video device , 3.5 MM Audio devices connection, and can be easily connected via PCs, mobiles, phones, DVDs, TV, iPads, etc Ceiling and tripod mounting is also supported，enjoy BIG screen games ，It meets all your using needs for a projector..
MULTIMEDIA PORTABLE PROJECTOR: Great for video viewing, TV series watching as well as photo browsing. It can be easily connected to your smartphone, PS3, PS4 or Wii to enjoy diversified games..

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Smart Projector Android 9.0 , Portable Projectors for Phones 1080P Supported and 170 Inch Display, 6000L Video Projector with WiFi and Bluetooth

ADJUSTABLE DISPLAY SIZE & KEYSTONE CORRECTION: Smart Wi-Fi Mini Projectors range in projection sizes from 56" to 170" and distances between 1.7m and 5.6m , the optimum watching size is 60" screen with 1.8m distance. The mini projector equipped with ± 15° keystone correction, reduces vertical image distortion effectively. It means you can easily adjust your screen to be rectangular and enjoy the clearest pictures..
SUITABLE FOR MANY OCCASIONS: Our smart video projector provides a multifunctional air remote mouse, which transmission distance can up to 5 meters/197 inches, allows to be controlled accurately. It’s more convenient to operate in horizontal and vertical mode. You can enjoy your home theater, online games, even outdoor movies with your families and friends..

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Projector with 5G WiFi and Bluetooth: 480 ANSI Outdoor Projector-4K Support 18000L 400 Native 1080P ONOAYO, ±50°4D Auto-V Keystone & Zoom Sealed Home Movie Portable Mini Projector for Phone, PC

【Upgrade 4D/Auto Vertical Keystone Correction & 50% Zoom】AYO1 has an advanced keystone correction system: ±50° 4D (Vertical & Horizontal) and Auto vertical correction compared to other manual ±15° keystone 1080P projectors.Ensuring clear and well-proportioned images without any distortion. The images can be easily adjusted via the remote instead of moving the projector even if the projector is hung from the ceiling. Zoom function can adjust from 100% to 50%, so it can better fit your needs!.
【480 ANSI & Portable 4K Support & 15000:1 Contrast ratio】AYO1 portable projector adopts the exclusive optical system and BSCO panel to increase 40%+ brightness and light utilization, you'll enjoy crystal clear and bright images on your 400” big screen. Innovative space tech packs bold sharper, brighter, and more colorful images into a small body, achieving only 2/3 the size, weight, and budget of the other 1080P projector. Send with an extra bag to create your ideal theater anywhere..
【Smooth & Stable 2.4G+5G WiFi &5.2 Bidirectional Bluetooth】Mirror everything on your phone to 4k projector in 1sec.With 2.4G+5G WiFi, AYO1 has a wider range and smoother transmission than others only 1 band. If there is no WiFi outdoo....

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