----- Original Message ----- From: Don Williams Finland Subject: Re: Push Processing Film
> How can you say that Wheatfield Willie is right? That C41 can't be pushed? > I've just carried out a well controlled experiment and the results show > unequivocally that it can be pushed quite nicely. Take a look. > > http://personal.inet.fi/cool/don.williams/hold/index.htm Take a look: http://users.accesscomm.ca/wrobb/PJ800/ This was a film Kodak designed to be push processed. The film was put through an in control C-41 processor, one strip immediately after the other, to ensure that all three received the same developer concentration and temperature. The normal iso strip received correct processing. The push 1 stop strip received 30 seconds (about 15%) extra development. The push 2 stop strip received an extra minute (about 30%) extra development. The additional processing time was derived from instructions gleaned from Kodak literature. Metering to determine the exposure was made with a Zone VI modified Pentax Spotmeter. The light source was 2x 500 watt quartz halogen yard lights. An 80A filter was used to correct the light source, and the manufacturers filter factor was applied to the base exposure setting. The normal negative appeared, to my eye to be correctly exposed. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
