Best Objective C Ebooks

Bysameyee USB Microscope, Digital Handheld 40X-1000X Magnification Endoscope Mini Video Camera with 8 Adjustable LED Lights, Compatible with Windows 7/8/10/11 Mac Linux Android (with OTG)

  • Strong Function: 1000X USB magnifier, comes with 8 LED light, the illumination of inspection area can be adjusted by the brightness wheel. Capture screenshot and record video of the micro world, this brings clear and stable image when using..
  • Wide Application: Powered by USB, this digital microscope is widely used in collections/coin inspection, educational purpose, skin examination, hair examination, Plant dissection/examination, textile inspection, jewelry inspection, printing inspection, PCB or PCBA inspection and so on..
  • Easy to Use: Easily operate with the software provided (for free), you can even use it as a measurement tool (only for Windows). One key taking pictures and zoom the objective..
  • Compatible with Most of E-device: Be compatible with Mac OS X 10.5, Windows 7 8 10 11, Linux kernels 2.6.26 and above, Android phones with OTG function. (How to check OTG? Download the free app"USB OTG Checker"). This microscope doesn't work with IOS iPhone..
  • What You Get: 1 x USB Digital Microscope, 1 x Metal Stand, 1 x Software Driver, 1 x Type C Adapter (for Android Type C Phone), 1 x Ruler..
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NIGHTFORCE NX8 2.5-20x50mm F1 Illuminated Moar Reticle Black Matte Hunting Scope

  • ED GLASS – Features a large 50mm ED glass objective lens for excellent clarity, contrast, and resolution, even in low-light situations.
  • LOW-PROFILE ZEROSTOP TECHNOLOGY – It gives you an easy return to your zero point, no matter how many elevation adjustments you’ve made in the field.
  • WIDE ZOOM RANGE – This wide zoom range allows for fast engagements at close range along with the ability to detect, identify and engage targets at long range.
  • FIRST FOCAL PLANE PRECISION – First focal plane technology means consistent reticle values, regardless of the magnification setting.
  • luminated reticles that provide for fast hold-off adjustments and precise ranging calculations.
  • 50MM OBJECTIVE – The 50mm objective is optimized for resolution and light transmission, with a parallax adjustment coming as close as 11 yards.
  • the integrated PTL (Power Throw Lever) makes power changes fast and easy.
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SVBONY SV503 Telescope 102ED F7 Extra Low Dispersion Achromatic Refractor OTA Micro-Reduction Rap Focuser for Astrophotography

  • 102mm objective lens diameter and f/7 focal ratio telescope OTA.
  • large objective lens brings more lights into the scope body and you will get more bright and clear image.
  • Doublet air spaced achromatic S-FPL51 ED glass provides you less chromatic aberration image.
  • ultra wide band multi-layer coating technology.
  • 102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution.
  • it comes with dual focus rack and pinion focuser with focus knob cover.
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Tibuta Masterpad T100+(Upgrade), 7\ WiFi Tablet Quad CORE 64-bit,Android 11, 1920×1200 FHD Display, Bluetooth 4.2, Google GMS, 5 Point Touch Screen, Support Multi-Language with Touch Panel

  • 【Excellent HD Display】- The 7 inch Full High Definition IPS Display with 1920*1200 Resolution that stays clear in any light, which presents a bright display with vivid colors for a more true-to-life viewing experience from all angles, perfect for watching HD movies, playing games and reading eBooks on chair or bed..
  • 【Enjoy your tablet anytime, anywhere】Masterpad 7" Tablet Computer with the portable size and built-in rechargeable battery, you can bring the fashion tablet outdoors easily..
  • 【Stable Connectivity】Tibuta Master Pad T100 tablet with enhanced Bluetooth, WIFI signal, is the most popular model in 2021 and is the best value for money choice..
  • 【Large Storage Space】Surfing the web, listen to music, shopping, playing games, etc. Tablets 32GB of onboard memory and a microSD card slot can expand your storage to up to 128GB..
  • NOTE: Please Do NOT use a general C-Type cable or OTHER adapters to charge TIBUTA Tablets. Charging will stop because of the adapter voltage and power difference. ONLY use the TIBUTA original cable and adapter to charge your tablet..
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AmScope A100X 100X (Oil) Achromatic Microscope Objective

  • This brand new 100X (spring, oil) Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.
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AmScope A40X 40X (Spring) Achromatic Microscope Objective

  • This brand new 40X (spring) Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.
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AmScope A10X 10X Achromatic Microscope Objective

  • This is a brand new 10X Achromatic microscope objective lens with high quality.
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AmScope PA60X 60X Plan Achromatic Microscope Objective Lens

  • This brand new 60X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes.
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AmScope 4X-100X Six Achromatic Objective Lens Set

  • A set of 6 achromatic objective lenses: 4X, 10X, 20X, 40X, 60X, and 100X.
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Trijicon 4X 32 ACOG Green LED .223 Horseshoe Reticle with TA51 Mount

  • Includes thumbscrew flattop adapter, AA battery, lens pen, lanyard assembly for adjuster and battery cap, logo sticker, manual, and warranty card.
  • 4x magnification with a 35mm objective lens.
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