Archived posting to the Leica Users Group, 2008/11/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I always felt that Point Lobos was bets captured with a Rollei SL66. Big negs, with a tilting lens board, it doesn't get any better than that. s.d. On Nov 12, 2008, at 3:19 PM, Bob Adler wrote: > Frank, > The TS-E 24mm f3.5L lens rotates, so when I have the camera in > portrait orientation, I rotate the lens so that the tilt is in the > verticle plane and the shift is horizontal. The lens rotates in > 45deg increments so, from what you are suggesting, I should have > rotated it 45deg off the verticle to the right (as I view the scene) > (clockwise from my position behind the camera). > I believe the minimum aperture is f22, but I don't have the lens in > front of me. > So I think I have it now; the image is soft: should have rotated > the tilt slightly clockwise and used the maximum DOF. Good to know! > Thanks very much for the help, Frank, > Bob > Bob Adler > Palo Alto, CA > rgacpa@yahoo.com > http://www.raflexions.com > > > > > ________________________________ > From: Frank Filippone <red735i@earthlink.net> > To: Leica Users Group <lug@leica-users.org> > Sent: Wednesday, November 12, 2008 1:02:57 PM > Subject: RE: [Leica] IMG: Fall Colors at Pt. Lobos > > Tilt and shift might work, but you need your planes in the right > orientation > to each other and to the camera In this case, you have a slightly > diagonal > plane of interest and a background that is pretty much at > infinity, all > over. Compensating with only tilt ( swing in the orientation we > see) is not > enough to capture even the foreground in a focus plane, relative to > the > camera sensor plane. And it confuses the eye/brain to see > weirdly. Front > to back focus areas work. Left to right looks weird... it is our > optical-brain connection that is trained one way and not the other. > > I think this might have worked just fine of you had used a landscape > orientation. That would have given you just tilt from the lens, > and the > "unfocus" plane would have been about equal for the infinite > background. > Then the background would have been in the same amount of "unfocus" > and > would have looked fine. It is the right to left stuff that causes > optical > confusion. > > Of course, the F64 group would have said you did not provide enough > DOF from > your lens.... > > BTW, what is the minimum F stop with the Canon PC lens you used? F32? > > Frank Filippone > red735i@earthlink.net > > > -----Original Message----- > From: lug-bounces+red735i=earthlink.net@leica-users.org > [mailto:lug-bounces+red735i=earthlink.net@leica-users.org] On > Behalf Of Bob > Adler > Sent: Wednesday, November 12, 2008 8:18 AM > To: Leica Users Group > Subject: Re: [Leica] IMG: Fall Colors at Pt. Lobos > > Hi George and Frank, > > Number 1 was photographed with a Tilt/Shift lens. I think the > problem is > that the foreground and background are in focus because they are in > the > plane of focus produced by the tilt. The mid-ground area was down a > cliff; a > drop of 20 - 30 feet. As this would put it out of the plane of > focus created > by the tilt, the only way to try to get it in focus is through > reducing the > aperture. I believe I should have shot at a smaller aperture than > f8, and > that may be the cause of the slop you see. > I think this would explain it as the right side was futher below me > than the > left and, as Frank noted, the right side seems more out of focus. I > think > the shift was centered. > Does this make sense to you? > > Thanks for pointing this out. I'll just have to go back! :-) > > George, as for the darkness in the the other shots, it's not caused > by any > adjustments by me. Pt. Lobos has a huge dynamic range. I could > never get > anything when I shot Velvia nor negative color. Even using N-2 with > BW film > couldn't get it all. I had a .6ND Grad filter (I'm going to be > buying a .9 > now) and even with all that an the increased capture dynamic range of > digital, I couldn't get it. > > So thanks for the input very much. Numbers 4 and the last image > will be put > on my main gallery! > Best, > Bob > Bob Adler > Palo Alto, CA > rgacpa@yahoo.com > http://www.raflexions.com > > > > > ________________________________ > From: Frank Filippone <red735i@earthlink.net> > To: Leica Users Group <lug@leica-users.org> > Sent: Wednesday, November 12, 2008 7:45:08 AM > Subject: RE: [Leica] IMG: Fall Colors at Pt. Lobos > > Bob... were you using your perspective controlled lens for the > first shot? > Does the lens offer swings and tilts? Or Tilt only? ( relative to a > landscape image configuration.) > > Mid range focus on the right worse than midrange on the left..... > indicates > maybe your lens was not "centered" and set for some amount of > tilt.... which > in this composition means swing... and therefore the focus planes > are not > where we expect them..... Although it certainly works for the > foreground..... > > Is this just a case of focus distortion caused by the foreground > focus being > right ( which it is) , and the background wrong for the foreground > focus > planes.....? > > Sometimes swings and tilts make the focus just look weird.... > > Certainly a colorful shot.... nicely composed. > > Frank Filippone > red735i@earthlink.net > > > > the first - the mid frame lack of focus puzzles me > > > Fond regards, > George > > > >> http://raflexions.com/11-11-2008/ > >> Bob Adler >> Palo Alto, CA > > > > > _______________________________________________ > 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 > > > > > _______________________________________________ > 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