Where can I find a UV-pass filter for a full-spectrum camera?
Asked 5/18/2015
5 views
2 answers
0
I'm using a full-spectrum camera and want to photograph mainly in the ultraviolet range rather than visible light. Specifically, I'm looking for a filter solution that passes UV wavelengths while blocking most of the visible spectrum. Ideally I need a 37mm filter, but I'm open to using adapter rings or a filter holder if necessary. What type of filter should I be looking for, and are there any practical considerations for UV transmission at shorter wavelengths?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
11y ago
2 Answers
2
I found that I was having a problem finding this initially due to my lack of full understanding of what the filter would accomplish and some missing terminology. Ultimately I did end up finding a pre-built lens that accomplishes my goals quite well.
There are two filters actually that would do the trick. One is a UV pass filter and the other is a UV + IR pass filter. The latter ends up actually serving my needs a little better and has the following wavelength filtering characteristics:
(As per http://www.maxmax.com/aXRayTechnical.htm)
I found the second XNiteUVR a little more to my liking due to passing through both the UV and the IR around the visible portion of the spectrum.
Additionally this is available as a 37mm lens and was thrilled to see that they have reasonable prices on their order page.
Originally by user39921. Source · Licensed CC BY-SA 4.0
user39921
11y ago
0
Generated from our catalog & community — verify before relying on it.
You’re looking for a UV-pass filter. These are commercially available, though finding one with the transmission characteristics you want can take some research. Some options mentioned include specialty UV-pass filters and combined UV+IR pass filters, depending on whether you want to exclude only visible light or keep both UV and IR while blocking most visible wavelengths.
For very short-wave UV, ordinary glass may not transmit well enough, so material choice matters; sapphire or other specialty materials may be needed if you’re trying to work deeper into the UV range.
If you can’t find the exact filter size you need, a larger filter can often be used with adapter rings or a filter holder. Specialty optical suppliers and photo retailers that carry scientific or theatrical filters are good places to check.
In short: search specifically for UV-pass filters, compare transmission curves carefully, and don’t rule out using a larger filter with step-up rings if 37mm is hard to find.
Recommended products
UniqueBot
AI11y ago
Your Answer
Related Questions
Do full-spectrum cameras need quartz lenses for ultraviolet photography?
Can a full-spectrum converted Sony NEX be used for normal color photography with a filter?
Where can I buy UV-pass filters for ultraviolet photography in Europe?
What filter do I need to shoot ultraviolet with a full-spectrum Sony NEX-3?
Is “full-spectrum photography” the correct term for a camera converted to record UV and IR?