Archived posting to the Leica Users Group, 2007/08/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Photodo I don't know doo doo about photo doo but the first thing I found it was Dante Stella and it was this: http://www.dantestella.com/technical/photodo.html Photodo.com comes up with some interesting results. Take, for example, a look at the 50/1.8 AF Nikkor ($100, rated 4.4 by Photodo) and the 50/2 Summicron-M ($900, 4.6). If you just looked at the weighted numbers, you would guess that the Leica is only 4% better, while costing 800% more. But if you look at the wider apertures, you will notice that the Summicron blows away the Nikkor. But due to the ways that Photodo weights the results, the Nikkor comes out much better off. Photodo bases its lp/mm testing on the following assumption: So go figure I cant figure it out. I do know the Summicron was made before Leica had gone gung ho on the wide open results are king approach. And that was with the high tech glasses and aspherics and such. Which was very recently. As in when I came on board the Leica boat in 1993. What wide open results we get from our rubberized low tech Summarits I don't know. But shooting with a 2.5 lens is not to me all about shooting 2.5. Its about shooting 5.6 half the time too. Mark William Rabiner Harlem, NY rabinergroup.com