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  #1  
Old 27th January 2016, 11:48 AM
RMaydana RMaydana is offline
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Default about printing,

Hi, I want to make an inquiry about printing,
1- recommend book about impressions, using filters and printing techniques
2- low 00-1- filters is what your purpose, work on the highlights (white)
3- high filters 4-5 mimso it as above, work on low beams (black)

My team is a LPL VCCE 7700

greetings and do not stop asking questions.




hola, quiero hacer una consulta sobre impresión,
1- libro recomiendan sobre impresiones, uso de filtros y técnicas de impresión
2- los filtros bajos es decir 00-1- cual es su finalidad, trabajar sobre las altas luces (blancos)
3- los filtros altos 4-5, lo mismo que lo anterior, trabajan sobre las bajas luces (negros)

Mi equipo es una LPL VCCE 7700

saludos y cualquier duda no dejen de consultar.
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  #2  
Old 7th February 2016, 03:36 PM
Pete Bedell Pete Bedell is offline
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Default Multigrade filters

The filters are for controlling contrast in black and white printing. 00 for lowest contrast going up to 5 for highest contrast. Grade 3 is a good starting point.
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  #3  
Old 7th February 2016, 05:28 PM
Tony Marlow Tony Marlow is offline
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The best book I have found is "The Photographer's Master Printing Course" by Tim Rudman, published by Mitchell Beazley. It is out of print so it means finding a second hand one

With your LPL enlarger to use graded filters you will have to support them under the lens. If you have a set of Ilford under lens filters then you should have a plastic bracket that fits behind the lens and has a shelf into which you can slide in the filters.

The alternative with your LPL is to use the built in colour filters for black and white printing for multi-grade papers. You set the cyan to zero and use different values for magenta and yellow to get the grades from 00 to 4 1/2. To get the values look at the information sheet that comes with the printing paper. For example with Ilford papers the values are listed at the bottom of the information sheet, tables 3, 4 and 5. For your LPL enlarger you use the values given for Kodak.
There are two tables of values, one with a single value for either yellow (soft) or magenta (hard). Using these single values the exposure time will change if you change the filter value. The other table 5 gives values for both yellow and magenta for each grade but using these the exposure time remains the same when you change the filter values which makes things a little simpler.

Hope this helps.

Tony
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  #4  
Old 8th February 2016, 06:17 PM
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photomi7ch photomi7ch is offline
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I agree with Tony Tim Rudmans book is brilliant it also gives the colour head values for the LPL enlarger which work well.
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