Re: [OM] Enlarger recomendations

[Larry A. Otto]

Does anyone know any other explanation? Can these filters get "out of 
alignment" or possible could the shafts or something slip so that they 
do not properly rotate into place? I have never even thought about 
trying to take a color head apart-- has anyone else got any info or 
experience with this? I have not ever even given any thought to exactly 
how these things operate before.
Curious

Larry


Winsor Crosby wrote:

> > At our local arts collage we have a very well equipped darkroom with 
> > about
> > 20 or so enlargers, mainly colour, mainly durst and LPL. They DO get an
> > awful lot of use, but someone was trying to print a low contrast B&W
> > negative using a colour head and despite dialling in the strongest
> > filtration, was only able to get a very low contrast print with no real
> > blacks. On examining the neg, we thought that it really should print 
> > OK so
> > we swapped to a B&W enlarger with Patterson filters and it printed 
> > fine at
> > grade 3.
> >
> > General conclusion was that the filters had faded.
> >
> > Steve
>
> Wasn't that why dichroic filters made their appearance?  To combat the 
> dreaded filter fade.


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