Wolkenkratzer
Hello,
I am unable to achieve the desired print density with the MCP310 01/2012 paper. It lacks the necessary hardness. My Laborator 1000, equipped with a CLS-450 and a Taunobox mixing unit, does not work well with the MCP310. I can only manage a density of 3 (0.15...1.05 on a grey scale negative) and that’s at M130. The M130 is actually only at 1.15. This was determined using a colour analyser (Hauck Deltalux). According to the paper chart, a filter setting of M50 should suffice here. Ergo, something’s not right.
I’ve already dusted all the glass plates and filters. Well, there are quite a lot of glass plates in this enlarger that the light has to pass through before it finally reaches the negative.
Should I insert a G2.0 filter sheet to achieve the gradient, or what can be done here?
I’m a bit at a loss.
Regards, Thomas
PS. I used to own a Kaiser and it had a similar problem, but not as extreme.
pittyman
Hi Thomas,
Have you ever carried out a test without laboratory lighting?
Best wishes from Dresden
Dirk
Tandemfahren
Hi Thomas,
First things first: it’s definitely not down to poor paper quality, but I’m sure you’re already aware of that.
The first usual suspect is the Dukalight, as Dirk rightly pointed out.
The only thing that helps is a thorough veiling test (this has been described many times before, so I’ll spare you the details).
On my Kaiser machine, something slipped in the filter mechanism ages ago; that was sorted in a few simple steps.
To rule that out, you just need to cross-check the paper you’ve been using so far – you seem to have a grey density bar for transmitted light.
Incidentally, another filter won’t help you.
And finally: could you please give a bit more detail about your measurement with the grey density bar? I haven’t quite got to grips with your description (target densities in the positive?)
Regards
Frank
