Reticle eyepiece to a Zeiss GFL - how to attach to original, or use Chinese noname reticle eyepiece?

[Artefakt]

As an amateur and new to this I want to study fungi spores and need an eyepiece with reticles to be able to measure the sizes of spores.

I have an old 1960's Zeiss GFL Standard microscope with C8X eyepieces, but I don't know if it is possible to attach a 17 mm reticle to this eyepiece, and if so, where to put it. Any advise on this?

Otherwise, is it possible to use a new noname Chinese 23.2 mm widefield 10x eyepiece with included reticle together with this microscope?

Or, is it better to use an eyepiece camera and make measures from the image?

Other suggestions?

[MichaelG.]

Usually better to stick with Zeiss eyepieces … Chromatic Aberration can be quite severe with others.

MichaelG.