UVF Fossil Ammonite

[Adrian]

My friend David Pelling recently showed me a pebble he had found at Charmouth beach, near Lyme Regis in Dorset, UK, with a small pair of fossil ammonites (possibly either Promicroceras or Dactylioceras sp.). These fluoresced well with 365nm UV light. In particular the small one shows far more detail than in visible light, showing up the chambers (septa) very clearly.

Technical details: Nikon D850 with 105mm micro Nikkor lens. UVF: 10 seconds at f/22, light painted  with NEMO torch.

[colinbm]

Excellent Adrian.

[nfoto]

Indeed, UV fluorescence adds a lot of visual information.

[JMC]

Very nice Adrian, fluorescence has worked great on those.

[Andy Perrin]

Adrian, you may also want to try a 405nm laser — as shown by Tom Kaye, lasers can bring out details that even UVIVF does not. 
 

https://www.ultravioletphotography.com/content/index.php?/topic/4293-laser-stimulated-fluorescence-first-tests/

 

[Doug A]

It reveals lots of extra detail and makes a mesmerizing image. 

Thanks for sharing,

Doug A

[OlDoinyo]

As much as anything, fluorescence gives a cleaner image here because it suppresses surface texture and shadows which interfere with viewing in reflected light.

[Craigo79]

Very cool

[Andrea B.]

That is fascinating. Particularly the difference in the details (as you mentioned).

 

The fluorescence photo would be lovely printed and framed. It is making me think of spiral galaxies somewhere way out there in a sea of stars.