Best Autofocus Calibration Kit

Pentax Fixed 55mm f/2.8 Standard Lens for Pentax 645D

  • Fixed 55mm f/2.8 lens designed for the Pentax 645D.
  • Fully weather sealed design to work with the weather sealed 645D..
  • Quiet SDM autofocus motro provides fsta and accurate autofocus operation..
  • Curved aperture blades provide a circular aperture at f5.6 for extremely smooth image bokeh..
  • Pentaxt quick shift autofocus instantly shifts from auto to manual focus for on the fly focus accuracy..
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PH Meter, 3 In 1 Garden Soil Test Kit, TDS PPM Meter, Soil Test Kit for Indoor/Outdoor Plants Plant Soil Moisture Tester Combination For Home, Lab, Garden

  • NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap.
  • range: -2.00 to 16.00 pH, 32 to 122˚F (0 to 50˚C).
  • Auto. Power-Off: 8 minutes without operation.
  • Easy 1-3 points auto. calibration, recognizes 5 types of solutions (1.68, 4.00, 7.00, 10.01, 12.46).
  • Auto Temp. Compensation (ATC) ensures accuracy in various temperatures (32-122˚F).
  • High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, environmental monitoring, cooling towers, beverage, etc..
  • Large LCD with 3 backlit colors (indicating different modes), dual display of temp./pH, and reminders of completed calibrations and stable readings.
  • The smiley icon indicates stable readings so you won't have to guess when is the right time to record the measurements.
  • COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a rugged portable case.
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Fujifilm Instax Mini 11 Instant Camera - Ice White

  • POLAROID NOW+ : It's the Polaroid camera you love PLUS so much more. Our Bluetooth-connected app features full manual control - double exposure - light painting - noise trigger - and more.
  • BONUS GIFT: The Polaroid Now+ includes a bonus lens filter kit. Includes 5 creative lens filters – Starburst, Red Vignette, Orange, Yellow and Blue..
  • DUAL LENS AUTOFOCUS: Get the perfect shot, automatically. The Polaroid Now+ feature a dual zone (Close-Up & Standard) auto-switching hyperfocal optical lens system..
  • CONNECTED ANALOG CAMERA: The Polaroid Now+ is our most creative camera yet. Unlock even more creative tools with the Polaroid App and easy to use Bluetooth connection. App available for iOS and Android..
  • FULL FEATURED: Tripod mount ready, Micro USB powered rechargeable battery, auto-focus dual lens system, Accurate Flash, Bluetooth connected App and bonus 5 lens filter kit. Plus, the original Polaroid square format compatible with both i-Type films and 600 films..
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Canon EOS Rebel G Film SLR Camera Kit with 35-80mm Lens

  • Enhanced command dial for mode selection , 11 exposure modes.
  • Canon's exclusive AIM (Advanced Integrated Multipoint) control system.
  • Kit includes camera and 35-80mm lens detachable Canon EF zoom lens.
  • Autofocus 35mm Film SLR with full manual options. Two CR123A/DL123A lithium batteries (3v) housed inside the camera grip.
  • Retractable built-in flash, improved control of red-eye reduction.
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APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit

  • Measures pH/EC/TDS (ppm)/Salinity/Temp. in a quick and professional manner.
  • Replaceable multi-parameter probe with easy installation.
  • When the smiley face icon stays on screen, it's the right time to record the measurements..
  • LARGE Clear LCD screen with 3 backlit color (indicating 3 different modes), dual display of temp. + pH/EC/TDS/Salinity, and icons of completed calibrations and stable readings.
  • Complete kit with ready-to-use calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a portable carrying case.
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pH Meter, 3-in-1 TDS Temp pH Tester 0.01 High Precision Water Quality Tester, pH Measurement Range with 0-14, Digital pH Meter for Household Drinking, Pool and Aquarium

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters, selectable units include TDS, EC, ppm 500, ppm 700 and CF.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in water and soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution, EC probe and pH probe, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purchase (6-month warranty for pH probe).
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Nikon D7500 For Dummies (For Dummies (Computer/Tech))

  • Autofocus system is compatible with select Nikon DSLRs that support D-type lenses and have an autofocus motor..
  • NOTE: THIS LENS WILL NOT AUTOFOCUS with D3000, D3100, D3200, D3300, D3400, D3500, D5000, D5100, D5200, D5300, D5500, D5600, D40, D40X AND D60. These cameras will only allow for manual focus with AF-D type lenses..
  • Great for travel and for shooting full-length portraits in available light.
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Bluelab MONGUA Guardian Monitor for pH, Temperature, and Conductivity (TDS) Measurements in Water with Easy Calibration, 3 in 1 Digital Nutrient Meter for Hydroponic System and Indoor Plant Grow White

  • Monitor pH up and down, temperature, nutrient (TDS) level in water to maximize your grow and ensure plants get a balanced feed.
  • General uses includes growing tent and reservoir.
  • Selectable conductivity units include TDS, EC, ppm 500, ppm 700 and CF.
  • This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
  • High and low alarm when outside parameters, selectable units include TDS, EC, ppm 500, ppm 700 and CF.
  • Lab quality glass pH probe with easy two point calibration.
  • Conductivity / temperature probe comes factory calibrated so it's ready to be used.
  • Double junction probe is more accurate than test strips and drops.
  • Combine with Bluelab pen and meter for full garden nutrients monitoring in water and soil.
  • Other features: International power supply, water resistant design.
  • KIT INCLUDES: Calibration solution, EC probe and pH probe, probe care kit is sold separately.
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.
  • 2-Year Limited Warranty with proof of purchase (6-month warranty for pH probe).
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ADC Pro's Combo I Adult Palm Aneroid/Scope Kit with Prosphyg 788 Blood Pressure Sphygmomanometer and Adscope 641 Sprague Stethoscope, Black

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APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

  • The top-rated pH tester now comes with a complete CALIBRATION and PROBE CARE Combo Kit, ensuring reliable test performance.
  • Comes with a probe cleaning brush for easy removal of contaminants on probes, maximizing probe's life-span.
  • Comes with Apera's unique CalBox, heping you organize all the solutions and save cost on buffers by at least 50%.
  • Apera quality pH sensor with low impedance, greatly improving response speed and shorteninb stablizing process.
  • Easy auto. calibration with buffer recognition.
  • auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122˚F).
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