Latest News and Application Notes

Start to Finish at the Shows

April 8, 2022

LECO is heading back to the show floor!

Are you attending the Cast Expo in Columbus, Ohio, from April 23 to April 26? Stop by Booth #2016 to meet our instrument experts and get answers to your metallographic questions!

Heading to AIST in Pittsburgh, Pennsylvania, from May 16 to May 19, instead? LECO will be at Booth #505!

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Focusing on the Field of View

May 7, 2021

VX4

When magnification was as simple as one eyepiece and one objective, finding your total magnification was as easy as multiplying the two values together. The addition of film brought a third value to the equation, but the result remained a static, concrete number.

And then along came the computer.

With a huge variety of video camera chips and monitor sizes and camera couplers and screen resolution, suddenly viewing something at 500X magnification became much more challenging. There was no way to take into account all of the permutations possible. For example, even if two systems were otherwise exactly the same, but one had a 23" monitor and the other had a 24" monitor, the magnification would be different.

It was time to replace the magnification focus with a different way of looking at things: the Field of View (F.O.V.)

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