Archived posting to the Leica Users Group, 1998/08/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Shallow yes - but if you are talking about portrait at 1 m with the 90 = mm lens you must compare it with portrait at 0.83 m with the 75 mm lens because of the lower magnification of the shorter lens. What do the tab= les say? Raimo photos at http://personal.inet.fi/private/raimo.korhonen nyt my=F6s suomeksi - ---------- > From: Nathan Wajsman <nathan.wajsman@euronet.be> > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] 75/1.4 versus 90/2.0 > Date: 11. elokuuta 1998 21:31 >=20 > Richard Clompus wrote: >=20 > > My question: Does the 75/1.4 M lens provide a significantly more narrow > > depth of field for portrait work than the 90/2.0 when both lenses = are used > > with their maximum apertures? >=20 > Richard, >=20 > According to the depth of field tables in Eastland's book, at a given distance, > say, 1 meter, the depth of field with the 90/2.0 is from 0.99m to 1.0= 1mm (i.e. > 2 cm) while at the same distance, with the 75/1.4 you have 0.993m to 1.006m, > i.e. 1.3cm. Pretty shallow in either case... >=20 > Nathan >=20 > -- > Nathan Wajsman > Overijse, Belgium >=20 > Photography page: http://members.tripod.com/~belgiangator/index.html > Motorcycle page:=20 http://www.geocities.com/motorcity/downs/1704/index.html >=20