Archived posting to the Leica Users Group, 2007/12/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Frank, I was using the term 'shift' in its general sense, i.e, movement of the lens' axis away from the center of the image frame. On a non-bellows camera you select the direction of the movement: left, right, up down, diagonal, and so on, and move the lens in the selected direction. If the building is very tall, and one cannot avoid pointing the camera up, you need a high vantage point - which I mentioned in my original post - to avoid converging verticals. A shift only camera is a bit of a compromise, but quite practical. Regards, Akhil ----- Original Message ----- From: "Frank Filippone" <red735i@earthlink.net> To: "'Leica Users Group'" <lug@leica-users.org> Sent: Saturday, 15 December, 2007 10:23 PM Subject: RE: [Leica] Trip to India - Suggestions? >I do not quite understand why shift would help.... > > Starting with some definitions I have learned.... > Shift is the movement left to right of the film or the front lens board. > Rise/fall is straight up and down. > Tilt is pointing up or down. > Swing is pointing the lens left to right....relative to the film plane. > > I would think to get a good picture of the monuments, from basically > ground > level, and to avoid converging verticals, you would move the front LB UP > and > keep the LB and the film plane parallel to the object. This usually > requires some amount of tilt, front and back, and pointing the camera > upwards. > > Shift would help if you can only get so far to the right, but your subject > is even farther to the right than you wish,,,,,, and you want correct > non-converging horizontals ( where you see the perspective or vanishing > lines). Rather than pointing your camera to theo right, which introduces > distortion, you just shift the lens board to the right, keeping the film > plane parallel to the front of your object. > > BTW, the Hasselblad FlexBody does rise, fall, and tilt very nicely, and > works with all the normal shuttered Hasselblad lenses...... > Or,as you state, a PC lens would work..... "shift" the lens up ( which is > really front rise) and maybe a bit of tilt to fix the converging > verticals...... don't forget your tripod.......! > > Maybe the problem is that you use the term "shift" in the sense of moving > the lens in a plane up or down.... and I use it as the definition of > moving > the lens right to left? In which case we are talking about the same > thing...... > > See.. it is all in the definitions.......I think..... > > Of course, there is always the ALPA.......! > > Frank Filippone > red735i@earthlink.net > > > Of course a view camera would be ideal, no question, but it would add a > lot > of weight and be very slow to work with. IME simple shift and a high > vantage point are usually sufficient to get a good image with no lean or > distortion. > > > > > ----- Original Message ----- > From: "Frank Filippone" <red735i@earthlink.net> > To: "'Leica Users Group'" <lug@leica-users.org> > Sent: Saturday, 15 December, 2007 9:04 PM > Subject: RE: [Leica] Trip to India - Suggestions? > > >> Shifts? Do you not mean swings and or more importantly, tilts and front >> rise/ back fall? >> >> Frank Filippone >> red735i@earthlink.net >> >> >> 1. Take with you a 6x9 or 6x12 camera with shifts if you intend to >> take >> photos of monuments. A 35mm camera with a wide angle lens is not adequate >> to >> >> do justice to these structures IMHO. No need to take a view camera, >> Horseman >> >> makes a shift camera that is quite portable. If you don't want to do >> this, >> take at least a 28 mm shift lens for your R. > >> > > > _______________________________________________ > 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 >