A portable electronic magnifier is equipment that can be helpful for reading, writing, and doing a variety of everyday living tasks.

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by J Kumler · Cited by 23 — The optical designer must learn how to select optimum materials for aspheres. Using non-staining glasses, higher index glass types, and softer glass types ...

Linear Polarizer Film

Barrel distortion is a common optical defect in photography and videography. It's usually caused by shooting with a wide-angle lens with a small focal length, ...

Powerful two-stage Peltier cooling up to 35 °C below ambient temperature · 1" sensor SONY Exmor CMOS IMX183, monochrome, back-illuminated · 13.06 x 8.76 mm size, ...

Tiffen 58mm Circular Polarizer Filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colours providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun. If you're out walking on a lovely day - in the mountains or at the beach - and you want to get a fabulous shot of a cloud-filled sky or make the water seem more saturated, then a polarizer is the way to go. This filter is the best way to make the clouds stand out, increase or decrease the saturation of the ocean or increase or decrease the reflection off the water. You can also use this filter when shooting into glass or windows since it will, again, either increase or decrease reflections. Along with a UV or Skylight Filter, a polarizing filter should be a part of everyone's gear bag. It can turn a run-of-the-mill image into a stunning, creative photo by increasing colour saturation.  Please Note: Circular polarizers are specifically designed for use with auto-focus SLR cameras (They will also work on manual systems without problems).

Polarizer film

Zygo 2002-2 Interferometer Body. $600.00. This appears to be some sort of interferometer unit for use in a metrology laser distance measurement system ...

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Sep 17, 2018 — Board index General Cross Stitch ... Does the magnifier become a nuisance when you need to turn your stitching over a lot? ... My floor magnifier/ ...

Sep 20, 2022 — This 50cm/pixel imagery taken on September 20th, 2022 shows what appear to be satellite calibration targets under construction about 19km ...

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ZINC SULFIDE ... Zinc Sulfide is a colorant and phosphorescent used in cosmetics to achieve the glow-in-the-dark appeal. This yellowish-white powder ...

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A light beam passing through a convex lens is focused by the lens on a point on the other side of the lens. This point is called the focal point. In the case of ...

Namely, a nonlinear crystal is used to split photons into pairs of photons that satisfy the law of conservation of energy, have combined energies and ...