At 11:48 PM 1/17/2002 -0500, you wrote: >Well far be it from me to interrupt someone else's argument but here we have >one of the greatest research tools, the Internet and no one has looked for >the answer, except for me. The following information comes from the Kodak >Black & White 400+ web page: > > If your camera will allow you to place a filter over the > lens, you can use the same effect-enhancing filters used > for conventional black-and-white films with very similar results. > For example, use a yellow or red filter to darken a blue > sky and emphasize clouds, or use a green filter to accentuate > red lips in a portrait. Since filters absorb some light that > would otherwise reach the film, the exposure must be adjusted > according to the filter you use. > >The URL is: > >http://www.kodak.com/cluster/global/en/consumer/products/techInfo/f15/index.shtml#49741 > >So according to Kodak B&W filters work exactly the same with chromogenic >films as with conventional B&W films.
Before someone else corrects me that should be "almost exactly" the same. >At 08:22 PM 1/17/2002 -0800, Shel wrote: >>Well, Tom, I was just repeating what I believe I read, and my point for >>mentioning it was to open the idea up for discussion. As for myself, >>I'm more on your side of the argument, at least until I can find the >>article and perhaps get some more information from it. Not one to shoot >>chromogenic film, I just breezed through the article and didn't think >>much about it, other than to register a bit of surprise. >> >>I will, however, add this thought, something that you touched upon, and >>that is that different films will react differently to filters. This >>became clear while reviewing filter information for the filter factor >>chart I put up on my site. So, even with regular B&W negative film >>there is some variation in the way the a given film behaves compared to >>other films. Admittedly it's usually not great (with some exceptions), >>so it's quite possible that chromogenics may behave somewhat differently >>that a "typical" B&W neg. film. >> >>Tom Rittenhouse wrote: >> > >> > Why not? If you use a yellow filter do you not reduce the blue light that >> > hits the film? And does red not reduce the blue and green? The filters >> may, >> > and I said may, have a slightly reduced effect due to the greater >> > sensimetric range of the chromogentic film, but why would you expect the >> > filters to work differently. >> > >> > Ciao, >> > graywolf >> > [EMAIL PROTECTED] >> > >> > ----- Original Message ----- >> > From: Shel Belinkoff <[EMAIL PROTECTED]> >> > To: <[EMAIL PROTECTED]> >> > Sent: Thursday, January 17, 2002 7:55 PM >> > Subject: Re: B&W and filters and C41 B&W film >> > >> > > Hi ... >> > > >> > > I just read an article somewhere, within the last couple of days, that >> > > said regular B&W contrast filters don't behave the same way with >> > > chromogenic film as they do with regular B&W negative. I'm not saying >> > > they don't have an effect, but that the effect is different. I don't >> > > recall where i read it, so I can't provide a citation. >> > > >> > > gfen wrote: >> > > >> > > > >> > > > Second of all, do yellow and orange >> > > > filters have teh same contrast >> > > > enhancing effects on C41 B&W as they >> > > > do on traditional silver halide B&W? >> > > >> > > -- >> > > Shel Belinkoff >> > > mailto:[EMAIL PROTECTED] >> > > http://home.earthlink.net/~belinkoff/ >> > > - >> > > 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 . >> >>-- >>Shel Belinkoff >>mailto:[EMAIL PROTECTED] >>http://home.earthlink.net/~belinkoff/ >>- >>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 .
