Quote Originally Posted by Gerald C Koch View Post
This film is not sensitized for visible light and there is no published speed for visible light. You would do far better buying conventional film. Good luck.
Most X Ray film IS sensitive to visible light as to reduce dosage to patients a phosphor screen is placed next to the film that emits visible light in response to the X Rays. The common fims are sensitive to GREEN or to BLUE - hence the film names - Film speeds are reported to be around the 200 to 400 ISO range.