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    Hi Chris. I was asking because i work on tech...

    Hi Chris. I was asking because i work on tech service for lensmeters within other devices for optometry/ophthalmology. I was requested to calibrate and adjust a lensmeter, which i did using a...
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    How to measure aspheric lens power ?

    I have a fundus lens with double aspheric surfaces (a common 20D lens for indirect binocular ophthalmoscopy). I'm wondering if you can measure the power of this kind of lenses (78D, 90D etc) in a...
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    Best Lensmeter for Contact Lens

    Just inquiring which lensmeter do you suggest for the best performance on contact lens measuring? I've noticed that reading contact lenses with Auto Lensmeters is not an easy task. I have tried the...
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    Usually an error during startup will be solved...

    Usually an error during startup will be solved just wiping the objective lens by removing the holding cup.
  5. I will check anyway. It doesn't hurt to see the...

    I will check anyway. It doesn't hurt to see the difference flipping it. This lensmeters are being used is a contact lens lab, and there's been always the dilema if the lens should be read with the...
  6. Anyone with an idea?

    Anyone with an idea?
  7. Lensmeter calibration problem with high power lens

    Hi everyone. I'm facing a problem which is new to me with a couple of manual lensmeters. First I adjust the eyepiece reticle in complete focus and then the measuring drum until i get the green target...
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