Abstract: A double hexapole corrector system was constructed for compensation of the spherical aberration of the objective lens of a transmission electron microscope. By implementing this system on a ...

I’ve been wearing contact lenses for over two decades; to find the best contact lenses for different vision needs, I tapped into my own experience and also relied on the expert insights of ...

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Laowa has announced its new Proteus 26-45mm T2.9 and 45-85mm T2.9 2x anamorphic zooms. These two new zooms now join the Proteus 2x anamorphic primes which consist of 6 focal lengths (with two more to ...

Accounting for ACD in piggyback IOL calculations using the Holladay formula and meridional analysis reduces errors.

Alcon is one of the leading visioncare companies in the world, with a record of successful product development, and it will continue to launch technically superior products.

The first GFX series digital camera with a built-in lens and a 102MP large-format image sensor - The lightest weight model in ...

The GFX100RF is the first fixed-lens digital camera in the GFX System, equipped with the 102- megapixel high-speed sensor ...

Check out the best Canon RF lenses for whatever you shoot, whether you're a full frame or APS-C shooter (I've included the APS-C equivalent focal lengths for each suggestion, so you know how the ...

If you’re a photography enthusiast, you probably own quite a few cameras, but the chances are your “good” one will have interchangeable lenses. Once you’ve exhausted the possibilities of ...