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UltravioletPhotography

Walk from Gloucester, Massachusetts to Beverly, Mass.


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Andy Perrin

I frequently take long all-day walks around various parts of my home state of Massachusetts, and I have started bringing the NEX-7 along for UV photos. Yesterday I walked from Gloucester to Beverly (20.65 miles, according to my GNSS Surveyor). Much of that was in the woods, but I also did plenty of walking on streets and by the ocean. The area is primarily glacial till and large erratics (boulders). I noticed on previous walks that certain species of lichen reflect brightly in ultraviolet, so I spent some time yesterday taking photos of lichen on rocks.

 

All visible light photos were taken with the iPhone 6S Plus, and the UV photos were taken hand-held on the NEX-7 with a 330WB80 filter rear-mounted to the Novoflex Noflexar 35/3.5. Only natural light was used. (I still don't own a flash.) White balance was in-camera off asphalt at the start of the day, because I forgot to bring my brand new piece of PTFE. The images were edited in PhotoNinja, Photoshop, and SmartDeblur (for blind deconvolution).

 

Part of the town of Magnolia, and, in the distance, a small island called Egg Rock:

post-94-0-73392400-1462936264.jpg

 

UV F5.6 0.033" ISO1600

post-94-0-94344100-1462936443.jpg

 

Unknown flower species, possibly rock madwort (alyssum saxatile):

post-94-0-16497300-1462937028.jpg

 

UV F5.6 0.033" ISO6400

post-94-0-63941600-1462937103.jpg

 

First of several examinations of lichen. It is somewhat boring in visible light...

post-94-0-78209700-1462937166.jpg

 

...but the lichen is less boring in ultraviolet.

UV F5.6 0.04" ISO3200

post-94-0-32496300-1462937233.jpg

 

Likewise (lichenwise?):

post-94-0-47384000-1462937643.jpg

 

UV F5.6 0.033" ISO6400

post-94-0-80996400-1462937704.jpg

 

I saw this rock monster in the woods. I've decided his name is Rockmaninoff.

post-94-0-30373500-1462937870.jpg

 

He looks like he's in war paint here:

UV F5.6 0.033" ISO1600

post-94-0-69707000-1462938082.jpg

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Andy, this is a wonderful walk you took. I'm not sure I can manage 20 miles, so kudos to your strong feet for an all day walk.

 

Yes that is some kind of Brassicaceae and most likely an Aurinia - or Alyssum saxatile. It's not native to the US. So if this was growing wild, it is probably an "escape" from someone's garden. This has a very interesting UV signature, so I'm pleased to see it.

 

And I'm likin' the lichens in UV for sure. They can be fascinating in UV. Sometimes you get nothing and then next time you get an entire spill of false colour like seen here. If I'm remembering correctly, UV is used to ID lichens sometimes. (I'll try to find my book and confirm.)

 

Rockmaninoff the Triops needs to apply his sunscreen more carefully!! Such a fun photo.

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