Archived posting to the Leica Users Group, 2007/04/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Luis mi amigo, you must have been looking at too many pretty senoritas and forgot your high school maths ;-) The diagonal of a 24mm x 36mm rectangle is 43.266 mm Cheers Hoppy -----Original Message----- From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of Luis Ripoll Sent: Thursday, 12 April 2007 07:21 To: 'Leica Users Group' Subject: RE: [Leica] 21 % 24 Lenses Stan, In my opinion your theory is not exactly, the diagonal of 24 x 36 is something more than 45 mm, and for this reason a lens around 50 mm is considered as "normal", if the diagonal of the M8 sensor is 32mm, IMO this minds that the normal lens would be one in between 35 mm and 28 mm, this is a different concept of your theory. A different thing is the angle of view of a lens, a 50mm on 24x36 mind's that at a distance of 5 meters you catch an horizontal field pof 3,5 meters, with a 90 mm you rich the same horizontal field at 9 meters, with a 135 , at 13,5m and with a 35mm at 3,5 m. Saludos cordiales Luis -----Mensaje original----- De: lug-bounces+luisripoll=telefonica.net@leica-users.org [mailto:lug-bounces+luisripoll=telefonica.net@leica-users.org] En nombre de Stan Yoder Enviado el: mi?rcoles, 11 de abril de 2007 6:25 Para: lug@leica-users.org Asunto: Re: [Leica] 21 % 24 Lenses I did the math on the diagonal of the 18x27mm sensor of the M8. Turns out to be 32mm near enough, which is what the 24 becomes on an M8. So the 24 is the theoretical "normal" for the M8. However, the 50mm 'normal' lens on 35mm film cameras would be better matched by a 28mm on the M8 (=37mm.) Actually, the 28 framelines of the M8 VF include slightly more than the 50 lines of my M2's VF. And, since a 35mm lens is/was the functional 'normal' with film for many of us, a 21mm lens would be the near-equivalent on an M8. Or am I all wet? Stan Yoder Pittsburgh _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information