How to verify / date a vintage instrument through blacklight?

brockburst

Member
Messages
586
Have heard about doing it, people use it to discover overspray etc. What am I looking for? How do I know if something has been altered? The more information the better, pics certainly appreciated.
 

chequepoint

Member
Messages
1,142
Old nitro glows kind of a snot green, but the main thing is that it should be pretty uniform. THe backlight will show off differences in the age of the finish. Hard to explain till you've seen it.
 

Jahn

Listens to Johnny Marr, plays like John Denver
Silver Supporting Member
Messages
28,782
http://www.lespaulforum.com/forum/showthread.php?p=1732160

that's a good thread on the subject. here's another:

http://www.lespaulforum.com/forum/showthread.php?t=113937

from that thread, this makes it the most obvious:

"some were asking about pics from a blacklight test.

A bandmate has a guitar with a cracked and repaired headstock and today I tried to take some pics in a blacklight situation.

First a pic of the repaired area with normal light (neon):



I have a vintage (hihi) - Made in USA - Sylvania 47 inch long blacklight in my rehearsal room.
Today I switched the blacklight on, let it power up for some minutes, took the guitar on a stand, used a tripod for my camera, switched off the normal lights so it was totally dark and took the pic with 16 seconds of exposure.

Here's the result:



Well, the repaired area (the new finish) is clearly visible in the pic, the different hue/color is popping out. Hope this helped a bit."
 
Messages
8,095
http://www.lespaulforum.com/forum/showthread.php?p=1732160

that's a good thread on the subject. here's another:

http://www.lespaulforum.com/forum/showthread.php?t=113937

from that thread, this makes it the most obvious:

"some were asking about pics from a blacklight test.

A bandmate has a guitar with a cracked and repaired headstock and today I tried to take some pics in a blacklight situation.

First a pic of the repaired area with normal light (neon):



I have a vintage (hihi) - Made in USA - Sylvania 47 inch long blacklight in my rehearsal room.
Today I switched the blacklight on, let it power up for some minutes, took the guitar on a stand, used a tripod for my camera, switched off the normal lights so it was totally dark and took the pic with 16 seconds of exposure.

Here's the result:



Well, the repaired area (the new finish) is clearly visible in the pic, the different hue/color is popping out. Hope this helped a bit."
Bingo!
 

danelectro

Silver Supporting Member
Messages
2,080
A picture tells a 1000 words...

2003 Historic Goldtop on the left, 1969 Goldtop on the right



1957 Junior on the left, 2006 Historic Junior on the right



Vintage knobs vs modern knobs under a black light
 

Lashing

Member
Messages
144
My brand new me made '51 tele copy, treated by me to glow under BL right now, brand new

normal light


Blacklight
 




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