Archived posting to the Leica Users Group, 2012/10/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]the lens will cover the format.........and it is pretty modern, so it should be pretty sharp. The image circle of the 90 Nikkor SWD is 238mm. The 6x17 format has a diagonal of 180mm. Back to the questions about film flatness.... and "floppiness" in the camera... The SWC is exceptional in this regard..... What film "holder" are you using? Frank Filippone Red735i at verizon.net -----Original Message----- From: lug-bounces+red735i=verizon.net at leica-users.org [mailto:lug-bounces+red735i=verizon.net at leica-users.org] On Behalf Of Richard Man Sent: Tuesday, October 16, 2012 10:08 PM To: Leica Users Group Subject: Re: [Leica] OT: large format lens vs. medium format lens Mainly the Nikkor 90mm SWD, but I think the other lens are similar... On Tue, Oct 16, 2012 at 10:02 PM, Frank Filippone <red735i at verizon.net>wrote: > Film flatness plays its part.... > Your lens is trying to project an image circle equivalent to a 5x7 > negative area....not an easy task.... > > What lens are you using? > > Frank Filippone > Red735i at verizon.net > > Always been my understanding of it, not the same enlargement so not > the same lens resolving. Newer LF lenses are much better than most old > ones though.... > > john > > -----Original Message----- > > As Iwas formulating the question, it sounds like the answer IS > obvious, but just want to confirm. > > I am testing the Shenhao 617 and it could be my focusing techniques > and other issues, but it appears to me that the images are not as > sharp on the same film as images made by, well, the Hassy SWC. > > Yes, I am expecting someone to jump in and say of course the SWC is > razor sharp because it's the legendary Biogon etc., but I am now > thinking that this generally will be the case, as the large format > lens are designed to cover large negative (and the smallest 4x5 dwarfs > the 617) so they do not generally have the resolution and sharpness > that a good medium format lens has. > > Is this correct? > > -- > // richard <http://www.richardmanphoto.com> > > > _______________________________________________ > 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 > -- // richard <http://www.richardmanphoto.com> _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information