on 4/1/02 12:56 pm, George L Smyth at glsm...@yahoo.com wrote: > > --- ragowaring <ragowar...@btinternet.com> wrote: >> Dear Christopher >> >> lf you go to http://www.ilford.com you will find in one of the pages the >> technical information on the paper that you are looking for. The actual >> page is >> http://www.ilford.com/html/us_english/prod_html/multirc/multi_iv_rc.html#Te >> chnical%20Data >> which is a bit of a type-full. It is easier to click 'products' when you get >> to the homepage. >> >> There is no mention of 'deluxe' so I assume that 'portfolio' is the same, >> the backing may change but not the emulsion in all probability. >> >> Anyway, the iso is 500 if you are not using any filters to alter the >> contrast range of the paper. > > However, you should not confuse paper speed with film speed. The 500 speed > indicated here does not relate to that same speed when applied to film.
Thanks for that, I learn something every day here. I am not the most technically minded and do things empirically although I love all the theory. Perhaps its the painter in me, who knows. Thanks George Alexis > > When I was using paper, I generally tested it at EI 2 and adjusted from there. > If you are using variable contrast paper, you can consider using filters to > accommodate the contrast range of the scene. Since I had to cut down the > filters I purchased for use in my enlarger, they found a use in my cameras > when > using paper. Of course, you will need to accommodate the reduction in speed > if > you use them. > > Cheers - > > george > > ===== > Handmade Photographic Images > http://members.home.net/hmpi/ > > __________________________________________________ > Do You Yahoo!? > Send your FREE holiday greetings online! > http://greetings.yahoo.com > > _______________________________________________ > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.???????/discussion/
