• Ultraviolet Photography

Idia americalis [American Snout Moth]; multispectral set

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#1 Mark


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Posted 16 July 2017 - 17:36

It must just be the season/weather, because for some reason moths seem to be everywhere lately - and I'm more than happy to take their photos. In this multispectral set I shot an American Snout Moth that was just sitting on my screen door (shown below on glass).

From top-left, clockwise, are VIS / UV / IR / UVIVF:
Attached Image: 07-08-2017_19-48-05.jpg

Its interesting that the lower half of the wings are so dark in the UVIVF image, which doesn't seem to correlate to an effect in any of the other wavebands. Maybe if I had shot a UVIIF image something would have shown up there? That would have been a very difficult shot though, given the restless nature of [animals in general] (such a long exposure would have most definitely been blurred).

- Nikon D750 [broadband] + 50 mm Nikon E series lens + 20 mm extension tube
Lens filters
- UV: Asahi ZRR0340
- UVIVF: EO 425 nm longpass + Baader UV/IR [stack]

- VIS: EO 425 nm longpass + Baader UV/IR [stack]
- IR: Hoya R72
- VIS: Sigma EF-500 DG Super flash
- UV, UVIVF: UVGL-58 lamp @ 366 nm
- IR: 40 W incandescent clear glass bulb
- ISO320 / f8 / 0.6-5.0s, as needed

Edited by Mark, 16 July 2017 - 17:37.

#2 Andrea B.

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Posted 18 July 2017 - 00:21

This moth seems to have almost the same tone set in each of the vis, uv and ir, so indeed it is strange about the dark band in the UVIVF.
Nice find! Maybe someday we will learn what it all means. ;)
Andrea G. Blum
Often found hanging out with flowers & bees.