The new optics of the LM-8 enhances the internal axis scale allowing for use even in a dark room. A newly designed long life cartridge type spotting device makes marking easier and clearer.

The LM-600PD Auto Lensmeter features Hartmann Sensor with 108 multiple measurement points. A UV measurement with the visually-enhanced display shows the UV transmittance in the range of 0 to 100% ...

[Wolf] sent in this site a while back, and I thought that this frequency meter how-to looked pretty useful. It’s based on an Atmel AT89C52 and a gutted multi-meter. The circuit isn’t too bad.