Color enlarger for B.W ??
R...@ascensionet.com
I just purchased a Omega Chromega B 600 Dichroic color head. Is there
any positives or negitives to using this enlarger for Black and White
enlargements. It also has a nikor 50mm lens. I will be using it for 35mm
negitives. I paid $200.00 for a complete color darkroom including the
enlarger. But I now want to back to black and white.
Thank Ron...
Richard Knoppow
R...@ASCENSIONET.COM wrote:
Hi Ron, This enlarger will work just fine. You can find lists of
the right settings for the color head for variable contrast paper on
the manufacturers' web sites. The Nikor lens is a good one. There is
really nothing special to know. Develop your B&W negs to the value
given for diffusion rather than condenser enlargers. Should work like
a charm.
---
Richard Knoppow
Los Angeles, Ca.
dick...@ix.netcom.com
Spectrum
R...@ASCENSIONET.COM wrote:
>
> I just purchased a Omega Chromega B 600 Dichroic color head. Is there
> any positives or negitives to using this enlarger for Black and White
> enlargements. It also has a nikor 50mm lens. I will be using it for 35mm
> negitives. I paid $200.00 for a complete color darkroom including the
> enlarger. But I now want to back to black and white.
>
> Thank Ron...
Dichro heads have become the standard of the industry and will allowe
you to work with all of the VC papers on the market. No other enlarger
type can give you so much versatility as a dichro head. It's the hands
downselection of about 890% of the people in photography today.
Now aren't you glad you asked ?
--
John & Karen Douglas
Spectrum Photographic Inc.
416 Washington Ave.
Pine beach,N.J. 08741
(908) - 505 - 8393
"To the limits of reality and
across the bridges of imagination we go!"
Ron Walton
R...@ASCENSIONET.COM wrote in article
<33190D...@ASCENSIONET.COM>...
: I just purchased a Omega Chromega B 600 Dichroic color head. Is
there
: any positives or negitives to using this enlarger for Black and
White
: enlargements. It also has a nikor 50mm lens. I will be using it for
35mm
: negitives. I paid $200.00 for a complete color darkroom including
the
: enlarger. But I now want to back to black and white.
:
: Thank Ron...
:
You will have no problems using a Dichroic head with B&W paper.
If you use VC paper the Dichroic head is a plus. The main thing I
noticed when changing to a Dichroic head was the amount of spotting
needed is far less than with a condenser head.
Ron
Adam
I second that. The reduction in the amount of spotting you will need is
a big plus.
Adam
Joseph Abramowitz
Don't even think of getting rid of it!!! There are easy conversion tables
that allow you to use color filters for B&W multicontrast papers. For
example: 10 Magenta= #2 polycontrast filter, 20M= #2.5, etc. The exposure
is about the same as the under-the-lens filters.
Hope this helps.
Joe Abramowitz
Boston University
Svproud
Ron:
That's not a problem. You can use the enlarger with zero on the filter
pack for graded paper or with a set of contrat filters of your choice.
Kodak also has a table showing the filter settings that duplicate the
Kodak filters.
Best of Luck
Sam
(JOBO USA)
Dick Weld
You have a wonderful opportunity to gain a lot more control over your b&w
printing...by dialing in either blue or green on the dichro head. Multigrade
papers have two separate emulsions, one sensitive to blue which affects the
dark tones of your image, and one sensitive to green, which controls the
highlights.
In practice, you make two separate exposures on the same sheet of paper.
Here's how it works...first, dial in all the magenta and all the cyan(which
gives you blue light) to set the levels of your blacks...do a test strip and
choose the time which gives you the blacks you want. Then, make that
timed exposure. Now, WITHOUT MOVING THE PAPER OR ACCIDENTALLY
BUMPING THE EASEL, dial out all the magenta and dial in all the yellow
(now you have green light) and do another test strip series on the same
paper, to pick out the level you kike in the highlights.
When you make your first real print, then, you may expose for 20 seconds
with the blue and 7 seconds with the green...but it will allow you to get
different contrast levels for shadows and highlights...for maximum
flexibility in printing.
Good luck...
Dick Weld
Nobody
>"Ron Walton" <ro...@kiva.net> writes: >
>> If you use VC paper the Dichroic head is a plus. The main thing I
>> noticed when changing to a Dichroic head was the amount of spotting
>> needed is far less than with a condenser head.
Less spotting - less sharpness.
But I also found it OK, especially on smaller prints
-Jan