Archived posting to the Leica Users Group, 2003/08/14
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Hi Alastair!
I've got a Macbeth TD-528 that I got for small change and it works
well. The densitometer is the darkroom's exposure meter. You need
to get a black and white step wedge. Check:
http://www.stouffer.net/Photo.htm
I think they are 10 or 15 dollars. The calibrated strips are very
expensive and you really don't need it. The 1/2" by 5" is fine.
Assuming the transmission part of your Macbeth is similar to mine,
you want to use the visual filter, which is orange at 6 o'clock on the
front snoot. With no sample, depress the Snoot Lever and while
down, hit the zero button.
Even without a stepwedge, this should give you good readings.
When you get a stepwedge, you can check it. For super critical
work and calibrated wedge, there's a CAL procedure that requires
an adjustment on the back.
Your model may be different in some regards and also includes
a reflection unit.
Cheers,
Rich Lahrson
Berkeley, California
tripspud@transbay.net
Alastair Firkin wrote:
> With all my "heavy" darkroom work, I seem to be heading into
> densitometer territory. I know I've asked for some help before, but
> this is a more specific query. I have found a "macbeth TR924 reflection
> and transmission densitometer" which from what I can see is a colour
> model. Question 1. Can I use it to do black and white reading? Q2: Does
> anyone know about this model, or could point me to instructions on how
> to use it? Q3: Any other comments would be warmly welcomed, as I have
> never used a densitiometer before.
>
> Thank you in advance
>
> Cheers
>
> Alastair
>
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