4K Ultraviolet Video

Unfortunately it's just me in a park. But you get the idea. The Lumix Fz1000 is fairly sensitive to UV light and it can be extracted even in a non-RAW movie format. Here I've used a 62mm MC FL-W filter and then removed all but the lowest blue in After Effects and Lightroom.

And with RAW not only can you have ordinary UV coal-miner photos of people faces but I've managed to create a weird filter that can solarise some tonal ranges for a truly strange effect.

Hanging out down in UV (330nm - 400nm)

The UV range is a strange place to be. And one of the hardest to capture.

On my modified full spectrum Lumix I needed to have a number of filters.

First a 'hot mirror' that block all IR rays. Also, a very specific piece of black glass that

blocks visible light only. This glass also lets IR through so that's why I need the hot mirror too.

I couldn't find the glass in lens for so I ordered it from a scientific company.

I got a 2 inch square piece of glass that I hold over the lens when taking the pic.

http://www.hoyaoptics.com/color_filter/uv_transmitting.htm

You also need a very powerful UV source and in these pics the sun volunteered.

Even with both of those filters I was getting lots of colour information too so,

in Lightroom I had to alter the temperature until I go the classic UV face effect.

UV faces are not pretty. Nearly every freckle, scar or other damage to your skin

from the last few years will show. Most people look like they've been working down

a coal-mine and age seems to be amplified.

I wasn't sure if I was actually capturing UV only or something else at first but

I was able to confirm it using patches of sun block which showed up on my

my experiment but were not visible to the eye.

I really don't have any visible freckles. 

My girl : white as white can be.

My friend Ian-John had a beard for 2 years. He had shaved it off weeks before this pic but you can still see its legacy here.

Models come off the best. But I'll give her a few more years and try again :)

Because of the set up and post processing needed I found it impossible to do UV video which is a pity. It is something rarely seen. But here it's beautifully done by Thomas Leveritt, this video went viral for a while so you may have already seen it. Also, his set up is a lot less shoddy than mine!

FULL SPECTRUM LUMIX

I recently had a Lumix Lx7 converted to full spectrum by Spencer's Cameras*. With full spectrum cameras all internal light filters and hot mirrors have been removed leaving the camera sensitive to lightwaves between 340 and 1050 nm (approx). Technical filters are added to the front of the camera for each different type of shot and here is the camera's full range:

Visible Light (420-640nm)

Visible & Hydrogen Alpha (420nm to 660nm)

Full spectrum (330nm to 900nm)

Extended Infrared (650nm to 900nm)

Standard Infrared (720nm to 900nm)

Deep InfraRed (850nm to 900nm+)

UltraViolet (340nm to 400nm)

The ultraviolet photo requires the most amount of filtering. For this I used sunlight as the UV source, a Hoya 330u, a Tiffen Hot Mirror and a Blue Color Filter. Even then the UV part of the raw image is only a small portion that needs to be separated out.

With the UV exception all other photos were taken with a single filter with no adjustments other than the white balance on the camera.

*It's worth noting that Spencer's Cameras have converted cameras for use by astronauts on the International Space Station! Their service is second to none and is very highly recommended,