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Messages 141 to 150 of 653 (Total: 653) First | Prev | Next | Last
Subject 
Author 
Date 
Re: Paper Testing - which grade ? 
Miles  7:29 2 Feb 07 
Exposure for film testing 
Philippe dB  1:17 23 Jan 07 
Re: Exposure for film testing 
Miles  16:53 23 Jan 07 
you need to start somewhere. Do number two except set your electronic timer for .5 sec and you should contact print your step wedge onto a sheet of film. Do one sheet of an iso 100 film (Tmax,Acros,Delta)and process it for 5.5 minutes. Read it with a densitometer. Read the most dense area (#1). If the density is somewhere near .87 (.84 to .89) you are on the right track. It would be safe at that exposure set-up to run the 5 sheet test. If not you've only wasted one sheet of film and you will have a good idea which way to go. Stay with exposure time of .4sec. or .5sec. As far as the metering, get 4 ev with the meter set on asa 100 by elevating or lowering the enlarger head with lens @ f/8 or f/11,ignore the F stop/time readout on the meter dial.
 
Re: Exposure for film testing 
Jorge Gasteazoro.   17:28 23 Jan 07 
Re: Exposure for film testing 
Philippe du Busquiel  6:56 24 Jan 07 
100Tmax EI in pyrocat 
Miles  19:16 21 Jan 07 
JandC 400 
Jorge Gasteazoro.   6:32 11 Jan 07 
Re: JandC 400 
John Hannon  1:59 12 Jan 07 
Re: JandC 400 
Jorge Gasteazoro.   6:47 12 Jan 07 
Re: JandC 400 
Miles  12:39 13 Jan 07 


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