Aristo dimmer for Zone VI lamp?greenspun.com : LUSENET : Large format photography : One Thread
I never thought I would see the day that my enlarger lamp would be too bright, but my Zone VI cold light is even with both supplemental diffusers under it , forcing me to stop down the lens into diffraction range.
I'm wondering if the Aristo solid state dimmer will work with my lamp. I'm trying to avoid ND filters.
I emailed Calumet a week ago with no response so far. Aristo's web site has it and it looks promising.
-- Hal Hardy (email@example.com), May 20, 2002
Yes the dimmer will work.You may want to run the Zone VIII developing time test. Cold lights give better results with denser negatives.
-- Richard Ritter (firstname.lastname@example.org), May 21, 2002.
If you can find a used Zone VI Cold Light Stabilizer (discontinued) at a reasonable price, you can use it as a dimmer, even without hooking up the photocell (which normally has to installed separately for Aristo heads). If you turn down the lamp intensity by at least 25% you should get excellent stabilization as well with this unit.
-- Michael Feldman (email@example.com), May 21, 2002.
Thanx. After pricing a filter holder and a couple of ND filters, there was no price difference to speak of and in the case of Kodak filters, the dimmer is actually cheaper (surprise).
-- Hal (firstname.lastname@example.org), May 21, 2002.
The D750 Lamp Dimmer can be used with all Aristo Cold Light Enlarging Heads. It's available from B & H Photo ($89.95). At their web site go to PHOTO > ENLARGERS & ACCESSORIES > ACCESSORIES FOR COLD LIGHT HEADS.
-- Dave Pettrow (email@example.com), May 22, 2002.
The D750 dimmer has arrived and this is a follow up report.
Not only does it work as advertised, but has an unexpected benefit- the lamp has virtually no warm up period when I start an exposure! That means I can take the compensating tic-toc timer off and replace it with the old mechanical Gralab. One less wire to mess with. I wonder why this isn't mentioned in the product description?
Anybody wanna buy a Zone VI tic-toc timer? :-)
-- Hal (firstname.lastname@example.org), May 29, 2002.