Not only visual observation but image observation is possible? – MIRUC OPTICAL CO.,LTD.

Not only visual observation but image observation is possible?

Yes. It is popular to attach the camera systems to Monitoring scope units・Lens barrel optics, and the image observation can be done on LCD monitor. If you have measure scope for visual observation, attach a dedicated C-Mount adaptor and you can easily change the system as an image observation.
More details can be found here.

Monitoring scope units

Eyepiece lenses

camera system