best size for UV exposure unit?

[SusanV]

If I build a UV exposure unit using 24 inch fluorescent lamps,
will that 24 inch width be enough to expose a 16 x 20 negative?
(I know the price of the components won't be better than
using 48" tubes, but I'm thinking in terms of saving space by
using a longer "column" of the shorter tubes.) And it's not
that I actually HAVE any 16 x 20 negatives yet, but I'd rather
build ONE unit that I wouldn't outgrow someday when my ship
comes in

 

[wfwhitaker]

Should be good to 16x20. If you use more tubes for a longer "column", you could even do 20x24 if your ship is larger than anticipated when it comes in. My exposure unit is twelve 24" tubes to save space.

 

[SusanV]

okay, well that's good to know. I wasn't sure how close to the edge I could go and get an even exposure. And now that you mention it... yes, why not go for the 20 x 24 size.

:::: chanting::::: "if i build it, my ship will come. if i build it, my ship will come... if I ... "

thanks
Susan