Archived posting to the Leica Users Group, 2000/10/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jesse Hellman wrote: >>>>>>The problem is greatest at the widest lens openings. I suspect that those who have not found it, like Tina, generally use smaller lens openings, and not at the closest distances. I wondered if the effort to correct for flat field for a RF lens is going astray, and that some field curvature can actually be helpful for those of us who do not shoot walls.<<<<<<<<<<<<< Jesse lad, You're sweating bullets over diddly squat and wasting good brain effort thinking about things like this. Particularly when your talking to people like Tina who probably has shot more images at f 1.0 than most folks on the LUG all put together at the same time. And to even hint that she uses smaller openings when she's our Queen Mother of the Noctilux is an insult, not to mention that you maybe the only shooter who doesn't shoot walls. Or whatever that was supposed to mean! Steady lad. Like I say, you're beating a dumb ass thing here and not listening to what some of us tell you how to correct it through our experience. We shoot this wide open stuff on a regular basis and have never gone through this mind bending quandary you're doing.! >>>>>>Particularly, it seems to me that this effect is another one that diminishes the value of the widest apertures. It 's another reason to use faster film and so be able to use F2.8 instead of F1.4. How often do we put the subject right in the center? I discovered this early with my Summilux 50, and noticed that I did have to correct to get portraits sharp. It is curious to me that this issue has not been widely discussed.<<<<<<<<< How often do we put the subject dead centre? Well pretty rarely, as it's generally a lousy compositional thing. >>>>>>It is curious to me that this issue has not been widely discussed.<<<<<<, Quite simply Jesse, it doesn't seem anyone else has this problem or otherwise it would have been top of the hit list parade at sometime or other. I'm sure one of the super techie types will come up with a very technical reason of why it happens, however not likely will it correct your situation, as theory things rarely correct real life picture taking.. ted