Archived posting to the Leica Users Group, 1999/03/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This is a multi-part message in MIME format. - ------=_NextPart_000_003F_01BE6FEA.28CB6000 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks for this great post, Christer. I think many of us have been = waiting for such a test, but (very) unfortunately do not read French. =20 Bruce Feldman Warsaw The April issue (# 85) of the French magazine R=E9ponses Photo has a = side-by-side test of Delta 3200 and Tmax 3200 both exposed at 800, 1600, = 3200 and 6400 and developed in ID11/D76, Ilfotec DD-X, Microphen, Xtol, = Tmax and Microfine. That makes 48 different tests!! Both films give very good results at 800 with all developers, but so do = all 400 films pushed one step, so why use 3200 asks RP. At 1600 = Microphen gave very good results with both films, as did Tmax developer = and Microfine with Tmax 3200. At 3200 the Tmax developer with Tmax 3200 gave the best results, other = combinations gave good results. At 6400 no combination was very good. = The reason =3D as we know ;-) =3D is that these film are true ISO = 800-1000-max 1200 film so that exposing at 3200 is already pushing = one-and-a-half to two steps. BTW, Anchell & Troop in their new 'Film Developing Cookbook' recommend = another approach to obtaining good results when pushing film: use Xtol = or FX 37 and dilute twice as much as you normally do and increase = development time 50-100% for a two-stop push. They say Tri-X can be = pushed three steps (i.e. to 3200) with acceptable results. I have found = the same. Detailed times for almost all films are in the book.=20 - -- christer almqvist eichenstrasse 57, d-20255 hamburg, fon +49-40-407111 fax +49-40-4908440 14 rue de la hauteur, f-50590 regn=E9ville-sur-mer, fon+fax +33-233 45 = 35 58=20 - ------=_NextPart_000_003F_01BE6FEA.28CB6000 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> <HTML><HEAD> <META content=3Dtext/html;charset=3Diso-8859-1 = http-equiv=3DContent-Type><?fontfamily><?param New_York> <STYLE></STYLE> <META content=3D'"MSHTML 5.00.0910.1309"' name=3DGENERATOR></HEAD> <BODY bgColor=3D#d8d0c8> <DIV>Thanks for this great post, Christer. I think many of us have = been=20 waiting for such a test, but (very) unfortunately do not read = French. =20 </DIV> <DIV> </DIV> <DIV>Bruce Feldman</DIV> <DIV>Warsaw</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>The April issue (# 85) of the French magazine R=E9ponses Photo has = a=20 side-by-side test of Delta 3200 and Tmax 3200 both exposed at 800, 1600, = 3200=20 and 6400 and developed in ID11/D76, Ilfotec DD-X, Microphen, Xtol, Tmax = and=20 Microfine. That makes 48 different tests!!<BR><BR>Both films give very = good=20 results at 800 with all developers, but so do all 400 films pushed one = step, so=20 why use 3200 asks RP. At 1600 Microphen gave very good results with both = films,=20 as did Tmax developer and Microfine with Tmax 3200.<BR><BR>At 3200 the = Tmax=20 developer with Tmax 3200 gave the best results, other combinations gave = good=20 results. At 6400 no combination was very good. The reason =3D as we know = ;-) =3D is=20 that these film are true ISO 800-1000-max 1200 film so that exposing at = 3200 is=20 already pushing one-and-a-half to two steps.<BR><BR>BTW, Anchell & = Troop in=20 their new 'Film Developing Cookbook' recommend another approach to = obtaining=20 good results when pushing film: use Xtol or FX 37 and dilute twice as = much as=20 you normally do and increase development time 50-100% for a two-stop = push. They=20 say Tri-X can be pushed three steps (i.e. to 3200) with acceptable = results. I=20 have found the same. Detailed times for almost all films are in the = book. <?/fontfamily><BR>--<BR>christer almqvist<BR>eichenstrasse 57, = d-20255 hamburg,=20 fon +49-40-407111 fax +49-40-4908440<BR>14 rue de la hauteur, f-50590=20 regn=E9ville-sur-mer, fon+fax +33-233 45 35 58 </DIV></BODY></HTML> - ------=_NextPart_000_003F_01BE6FEA.28CB6000--