Inside the Logan light panel.

[Tom Deering <tmd@xxxxxxxxxxx>]

I returned to B&H for some film today, and double checked the light 
panels.  Turns out B&H does have the Logan 4x5 light panel.  The 
salesman was also mistaken about the AC adapter.  It comes with one.

Unlike the larger versions I saw, this unit is charcoal colored, like 
the Cabin. Almost a nice looking as the Cabin, certainly professional 
enough to show slides to clients.  I liked it so much I bought one.

(As with most electronic things I buy, I took it apart immediately. 
I swiss armyed it while waiting for the subway.)

As you might have guessed, the light panel contains a big piece of 
Plexiglas, pretty thick at 8mm, which is edge-lit by the CCFL lamp. 
It is screen printed with a series of white dots that reflect the 
light up through the translucent front. The lamp is about 2.5 mm 
thick! (1/8 of an inch.)  It's like a very bright swizzle stick. The 
inverter is the size of a postage stamp.

Some folks have asked about the color of the light.  The Logan is 
listed as  5500K +-270.  I snapped a picture with my digital camera 
and analyzed the color in Photoshop. While this is a poor analysis, 
the white was almost dead center in the color wheel, leaning very 
very slightly to blue.  A regular film camera would be a better test, 
but it looks awfully good to me.

If you are interested in hacking a Logan onto your Saturn viewer, the 
light and Plexiglas reflector fit perfectly between the wings of the 
Saturn with a few millimeters to spare.  You would need to cut about 
an inch off the bottom with a table saw, polish the cut end and cover 
with silver polyester tape.  It's about perfect for the job.

Also, when I reported about the other light panels at B&H. I 
described one as a no-name model.  It is actually called the Visual 
Plus, and takes a single 9V battery.

Cheers,

Tom