ReviewsLens Calibration Tools

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.

...ermometer accurately measures temperature and humidity simultaneously ranges between -40 and 120℉/-40 and 50 °C to accommodate all climates, both Celsius and Fahrenheit are available.
humidity range from 0 to 100%RH, to keep house or garden in great condition.
Automatic Calibration within 2-3 Hours: This weather thermometer with a precision-made thermometer coil ensures accurate readings. The hygrometer uses a built-in mechanical movement that enables real-time sensing, so you don't need to calibrate it and does not require a battery. For manual calibration, you could turn the knob behind the thermometer to increase or lower the temperature..

【Complete Calibration Weight Set】Everything you need to keep your scales zeroed and accurate in one protective box case. Includes 1 x 50g, 2 x 20g, 1 x 10g, 1 x 5g calibration weights and tweezers,totally 6Pcs(100g)..
【Stainless Steel Anti-oxidation】Steel construction of calibration weight with chrome plated finish for well stability, corrosion and rust resistance, and low magnetic susceptibility, Durable material will not be damaged and can be reused multiple times..
【Extreme Accuracy】Permissible error is +/_0.003g, comparable with NIST-traceable calibration weights in their precision, yet highly affordable. Weights are standard measuring tools for meeting your daily demands..
【Perfect Case】Each of these weights are individually identified with their weight stamped into them for ease of reference, and packed in a custom-recessed, foam-padded presentation box for protection. The multi-layer packaging can avoid damage during transportation..
【Wide Application】The complete calibration set for Digital Jewellery Scale, General Laboratory, Commercial, and Educational use..

The Calibration labels are 2 X 1 Inches - 128 Write-on Calibration Stickers per pack.
Calibration Stickers having the clear laminate seals cover over the label keeps the marker from smearing and also keeps the greese and dirt out.
Write on vinyl surface that is moisture and dirt resistant.
Spiral bound book protects labels from damage or loss.
Perfect for a company labeling their inspection tools that has to contend with NIST and ISO-9000 and calibrate equipment occasionally.

Thermometers feature a 1/2” NPT threaded connection and polycarbonate lens.
External adjustment allows for simple field calibration.
Each thermometer features accuracy to 1%.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

Thermometers feature a 1/2” NPT threaded connection and polycarbonate lens.
External adjustment allows for simple field calibration.
Each thermometer features accuracy to 1%.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

Thermometers feature a 1/2” NPT threaded connection and polycarbonate lens.
External adjustment allows for simple field calibration.
Each thermometer features accuracy to 1%.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

Thermometers feature a 1/2” NPT threaded connection and polycarbonate lens.
External adjustment allows for simple field calibration.
Each thermometer features accuracy to 1%.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

Thermometers feature a 1/2” NPT threaded connection and polycarbonate lens.
External adjustment allows for simple field calibration.
Each thermometer features accuracy to 1%.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

DURAC bi-metallic dial thermometer features a 33mm (1.3in) dial and a 125mm (4.9) probe.
Minimum immersion of 50mm (2in) in liquids or 100mm (4in) in gases.
External adjustment nut allows for simple field calibration.
features a polycarbonate lens and probe cover with a pocket clip.
Individually packaged with a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Test and Calibration.

【Complete Calibration Weight Set】Everything you need to keep your scales zeroed and accurate in one protective box case. Includes 1 x 200g, 2x 100g, 1 x 50g, 2 x 20g, 1 x 10g, 1 x 5g , 1 x 10mg, 2 x 20mg, 1 x 50mg, 1 x 100mg, 2 x 200mg, 1 x 500mg calibration weights and tweezers,totally 16Pcs(500g)..
【Anti-oxidation Stainless Steel Material】Steel construction of calibration weight with chrome plated finish for well stability, corrosion and rust resistance, and low magnetic susceptibility, Durable material will not be damaged and can be reused multiple times..
【Extreme Accuracy】Permissible error is +/_0.003g, comparable with NIST-traceable calibration weights in their precision, yet highly affordable. Weights are standard measuring tools for meeting your daily demands..
【Perfect Case】Each of these weights are individually identified with their weight stamped into them for ease of reference, and packed in a custom-recessed, foam-padded presentation box for protection. The multi-layer packaging can avoid damage during transportation..
【Wide Application】The complete calibration set for Digital Jewellery Scale, General Laboratory, Commercial, and Educational use..