Kolari Imaginative and prescient UV Pictures Filter, Ultraviolet Bandpass Transmission Lens Filter

We are glad to announce that we have now lastly developed our personal images grade UV transmitting bandpass filter! This filter pairs with a full spectrum transformed digicam for true UV-reflective images. Read our UV photography articles for lens issues and normal recommendation for taking pictures UV efficiently.

Great for images, pores and skin injury evaluation, forensic evaluation, astrophotography, and different makes use of.

Unlike different UV filters available on the market that are interference coating based mostly, we have developed our filters utilizing absorption based mostly glass. The efficacy of interference coatings is determined by the angle of incidence, that means that transmission traits change relying on the angle of the sunshine rays. This could also be advantageous to be used with a telescope, the place there incoming mild could be very parallel, however for normal images this causes issues with inconsistent coloration throughout the body. Those aware of our hot-mirror’s might recall the problems with earlier interference based mostly hot-mirrors.

Our filter has a 50% transmission peak at 365nm, and >25% transmission between 345-380nm for top whole mild transmission. Average out of band rejection is >OD 4.3 (0.005%), with a minimal rejection of>3.5OD (0.025%), that means there’s a excessive sign to noise ratio and no IR contamination.

Our UV filter is coated for sturdiness. Uncoated UV glass is delicate to oxidation when uncovered to humidity, ruining the filter. Due to the thickness of the glass, the filter is just threaded on one aspect solely.

*UV images requires a UV-compatible lens*