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 Shenhao 617 holder. There have been talk about 617 holders (not just Shenhao's) do not keep the film flat enough :-( On Tue, Oct 16, 2012 at 10:22 PM, Frank Filippone <red735i at verizon.net>wrote: > 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 > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- // richard <http://www.richardmanphoto.com>