Optolong Venus U filter1,25
Venus-U filter makes it possible to obtain photographs, CCD or video images in the UV-A (320-400nm) and observe Venus’ cloud structures.
Main Use and Performance
- Use with monochrome CCD cameras and you need to remove the cover glass of sensor and internal UV-IR blocker in order to pass UV light. The same holds true for mono DSLRs that its built-in low pass filter needs to be removed. What’s more, you need a special UV lens together with camera body. The sensor of CCD or CMOS cameras is capable of detecting light in the 350-1100nm range.
- Act as an outstanding dust shield, which prevents the possibility of dust settling on the lens during long time exposure.
- Ultraviolet photography finds practical use in medicine, dermatology, botany, criminology and theatrical applications.