I hope this isn't too far off topic ... but: is there a source (online or hard copy) for identifying the various Zeiss microscope eyepieces? I know they usually have a six digit identifier, but is there any logic to those numbers?
For example, I have a Zeiss West Germany model 46 40 30 - 9901. It's also labeled "Plan W 10x/25" and has the eyeglass symbol. I assume that the "W" stands for widefield, the "10x/25" means 10x or 25mm focal length, and the eyeglass means that it has sufficient eyerelief to be used with eyeglasses. How can I find out more including its value?
For example, I have a Zeiss West Germany model 46 40 30 - 9901. It's also labeled "Plan W 10x/25" and has the eyeglass symbol. I assume that the "W" stands for widefield, the "10x/25" means 10x or 25mm focal length, and the eyeglass means that it has sufficient eyerelief to be used with eyeglasses. How can I find out more including its value?
