In order to perform UV observation (ultraviolet observation), it is necessary to have a UV (ultraviolet) sensitive camera and a UV compatible lens.
Shodensha cameras mainly observe visible light.
As picture shown below, there is no sensitivity in the ultraviolet region.
UV observation is divided into two types:
(1) Observe scratches, spots, irregularities on the surface of objects
(2) Observation of weak fluorescence phenomenon of objects
For cameras, you need to choose one of the following:
(1) A camera sensitive to ultraviolet rays. It is a camera like the one below.
(2) A camera is not merely an ultraviolet range. But an ultrahigh sensitivity camera is necessary to catch a weak fluorescence phenomenon. In general, I use a cooled CCD camera. It becomes the camera as follows.
For lenses, it is necessary to use UV-compatible lenses as below.
(The following is the zoom lens of Navitar USA)