Okay. After reading all the comments about pushing C-41 I decided to take a stab at it.
I exposed a roll of Solaris FG 400 yesterday in subdued sunlight using the same aperture (f 8) and exposures of 1/125, 1/250 and 1/500 of four different scenes. The correct (normal) exposure, according to the P30 would have been 1/125 at f 8. I was tempted to go one stop further, but thought I'd better not for the trial run. Then I processed the film with an increase of 20% over recommended time with everything else controlled and normal. With few exceptions (very light subject) the frames are almost all usable. In the case of light subjects the optimal frames are those that rate the film at 1600 ASA. In some cases it's hard to choose the best negative. Scanning was done with no compensation of any kind besides focussing. The preliminary verdict is that Solaris FG 400 can easily be pushed to 1600 ASA. I'll analyse and post the results in a scientific way and put samples on my web site shortly. The mask is denser, but presents no problem when scanning. A histogram seems to indicate that it is about twice as dense as normal. But I have no good way of measuring this. I think about it a bit. I have no idea what would happen if these negatives were put in an enlarger. For those interested in the pictures of the close-up 'flash reflector-contraption' please look. I'm going to remove them in a few hours to make room for the push samples. Don Dr E D F Williams Author's Web Site and Photo Gallery Updated: March 30, 2002 ----- Original Message ----- From: "tom" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, July 21, 2002 2:29 PM Subject: RE: Pushing C-41 > You might take into consideration that some films are supposedly more > pushable than others. I believe Fujipress, T400CN and possibly the > Supras are set up so the orange mask isn't as sensitive to development > times as in other films. > > Haven't tried it myself, and the mask is only half the problem. > > tv > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of Don > > Williams Finland > > Sent: Sunday, July 21, 2002 3:21 AM > > To: [EMAIL PROTECTED] > > Subject: Re: Pushing C-41 > > > > > > I've found quite a bit more about pushing C-41 - after more > > intelligent > > searching on the WWW. It would appear that the recommended > > increase per stop > > ranges from 15% to 30% of normal time in the developer. I > > don't use an > > enlarger so any filtration would be done in PhotoShop. Of > > course scanning > > involves other potential difficulties, but I won't touch on > > those for the > > moment. I'll start my experiments when the sun comes out. > > > > D > > > > Dr E D F Williams > > Author's Web Site and Photo Gallery > > Updated: March 30, 2002 > > > > > > ----- Original Message ----- > > From: "Bob Rapp" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Saturday, July 20, 2002 3:48 PM > > Subject: Re: Pushing C-41 > > > > > > > ----- Original Message ----- > > > From: "William Robb" <[EMAIL PROTECTED]> > > > Push processing film increases contrast, and BD+f, but doesn't > > > provide any useful speed increase. > > > William Robb > > > - > > > And.....would add a colour cast than no amount of filtration could > > > eliminate. > > > > > > Bob > > > - > > > 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 . > > - > > 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 . > - > 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 . - 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 .
