Archived posting to the Leica Users Group, 2012/03/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Howard, I really can't guess, but another variable I just realized, is did you do the NEX focus or did it? The different actual focal lengths and image sensor issue is definitely relevant; it cannot be the "same" picture. Your test is subjective as all get out, and doesn't prove your point, at least to me. If you like the camera, so be it. On Sun, Mar 25, 2012 at 10:14 PM, Howard Ritter <hlritter at bex.net> wrote: > I merely wanted to see how the "same" picture from an NEX-7 and an M9 > would compare. After all, what we compose and look at and appreciate and > evaluate is the qualities of the whole picture, not the differing portions > of a scene as captured by different-size sensors at the same actual focal > length. Some more technical comparisons of sensors and lenses would require > one or both to be identical, but not my purposes. > > The matter of different a.) sensor sizes and b.) focal lengths is in the > first case therefore irrelevant, since it's one of the ground rules, and in > the second case necessary, since the idea is to compare the two cameras > recording the same photographic composition. One would hardly insist on the > same actual focal length for both lenses if one wanted to compare the > appearances of pictures from an interchangeable-lens camera and a pocket > P&S (if one had a good reason to do so). > > The description one click into the album answers some additional questions > in the affirmative: http://gallery.leica-users.org/v/hlritter/desktop_001/ > > I had hoped a tripod wouldn't be necessary with the camera braced on a > windowframe, careful technique, and a shutter speed of 1/500 at 90mm FL, > and I don't think I can see any evidence to the contrary, but the point is > a fair one, and I'll try to repeat the comparison in the next couple of > days using a tripod. > > ?howard > > On Mar 25, 2012, at 10:05 PM, Sonny Carter wrote: > > >> > >>>> On 3/25/2012 5:04 PM, Howard Ritter wrote: > >> > >>>>> I took pictures of the same scene with both cameras for comparison, > >> and > >>> curious to know how they perform at the limits of enlargement, cropped > >> each > >>> down to the central ? or so of the frame. The NEX-7's kit lens was at > >> 55mm > >>> (82.5mm equiv) and the M9 wore the 90mm asph Summicron. I created a > >>> side-by-side montage and posted it for the curious: > >>>>> > >>>>> > >>> > >> > http://gallery.leica-users.org/v/hlritter/desktop_001/NEX7-M9+comp.jpg.html > >> > > > > Um . . . several variables bother me here. > > > > 1) different sensor sizes. > > 2) different ACTUAL (not equivalent) focal lengths > > 3) (Like George) I think the cameras should have been locked down. > > 4) Were they shot at the same manual aperture, shutter speed and ISO? > > > > Without these being nailed down, it seems pretty subjective a test to me. > > > > > > -- > > Regards, > > > > Sonny > > http://sonc.com/look/ > > http://sonc-hegr.tumblr.com/ > > Natchitoches, Louisiana > > > > USA > > > > _______________________________________________ > > 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 > -- Regards, Sonny http://sonc.com/look/ http://sonc-hegr.tumblr.com/ Natchitoches, Louisiana USA