Archived posting to the Leica Users Group, 2014/01/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Adam, It's a problem mostly because all my cameras need to be usable for regular photography and technical / scientific work, where the results are more like bench tests than field shooting. I have tried the A7 and A7r with adapted lenses and neither work well enough for my purposes, especially with Leica lenses under 50 mm. My image analysis program failed to differentiate small details which had been blurred, from about 2/3 the way out of the field, whereas with an M9 it can differentiate to the edges, even wide open with a 28/2. If you're happy, great, but what I do with my cameras is different from most people. Marty On Mon, Jan 13, 2014 at 1:17 PM, Adam Bridge <abridge at mac.com> wrote: > If you buy crappy adaptors then you get crappy results. If you pay the > price for quality parts this shouldn?t occur. Assuming someone uses high > quality machines the tolerances should be within 4 microns - that?s what > the folks down the street tell me - the machines they use to make their > machines work at 2 microns. This should be sufficient, I?d think. > > Maybe I?ve been lucky. That?s certainly possible. But I?m liking how my > Leica lenses work on Sony E-mount cameras work. Your milage may vary. > > I have no problem with a manual workflow on the A7(r) cameras. It?s no > more difficult than using any manual lens. Personally I?m not thrilled with > auto-focus. I tend to use even autofocus lenses in manual mode. > > My feelings: try it. My noctilux works just fine on either A7(r) as does > the 100mm APO R. > > These are not pentaprism cameras. They have EVF?s I like shooting using > the magnification setting to get focus precise. I continue to be amazed at > the quality of manual focus sports photography from the (ahem) ?days of > yore?. (I?m looking at YOU, Ted.) <grin> It?s non-trivial. I?m still > learning. I love learning. > > Just because an adaptor might be required doesn?t mean a camera/lens > combination isn?t worthwhile. Maybe in test cases it is. In the real world? > Prove it. > > Adam > > > I read the lens rentals blog and I?m not convinced. I do know I haven?t > experienced this with nova flex > On Jan 12, 2014, at 5:38 PM, Marty Deveney <benedenia at gmail.com> wrote: > > > Problems with alignment are the most obvious issues I've seen. This: > > > http://www.lensrentals.com/blog/2013/09/there-is-no-free-lunch-episode-763-lens-adapters > > summarises the whole problem well and > > "that great lens certainly wouldn?t be as good as it would be on its > > native-mount camera" is the perfect one-sentence explanation for what > I've > > seen. The Leitz LTM-to-M adaptors I have aren't adequate to show the > best > > performance of good LTM lenses on the sensor of the M or Monochrom and > show > > assymetrical smearing of the edges. Twice I have had to go through 3 or > 4 > > adapters to get a good (not great) one and that's from reliable brands. > > Adapting lenses to non-native mounts is all good harmless fun, and I > > encourage people to use what they have, but a lot of the time for > critical > > work they aren't good enough. I do use my cameras for technical and > > scientific purposes as well as just general photography, so lots of my > gear > > gets looked at very hard. > > > > I have also recently had the mount replaced and helicoid on my e58 > Noctilux > > re-built to make sure everything was properly aligned - but the lens is > 36 > > years old and has been used really hard (as, I think, it should). > > > > Marty > > > > > > > > On Mon, Jan 13, 2014 at 10:40 AM, Steve Barbour <steve.barbour at > > gmail.com > >wrote: > > > >> > >> On Jan 12, 2014, at 4:35 AM, Marty Deveney <benedenia at gmail.com> > >> wrote: > >> > >>> On Sunday, 12 January 2014, Steve Barbour wrote: > >>> > >>>> > >>>> On Jan 11, 2014, at 4:02 PM, Marty Deveney <benedenia at gmail.com > >> <javascript:;>> > >>>> wrote: > >>>> > >>>>> It's great (potential) news; having choice is good. The Zeiss lenses > >> for > >>>>> these cameras are incredible, but there aren't enough - I'd love a > >> camera > >>>>> like this, but there is no 28 or short tele, the latter of which I > >>>>> particularly need. > >>>> > >>>> use the R to E adapter and R lenses > >>> > >>> > >>> Sure, I already have 28 and 80 R lenses, but I like native lenses - > >>> adaptors always have problems. I also like a familial lens set where I > >> can > >>> get different focal lengths with matching rendition - and the 80 > >> Summilux - > >>> although probably my favourite short tele, is almost the complete > >> opposite > >>> of the 55/1.8 FE lens for the A7 in native rendition. I also don't see > >>> much point using an autofocus camera with manual focus lenses, > especially > >>> when you'd already be dealing with the problems above. > >> > >> > >> > >> what problems? > >> > >> s > >> > >> > >> > >>> > >>> Marty > >>> > >>> > >>> > >>> > >>> > >>>> > >>>> > >>>> s > >>>> > >>>> > >>>> > >>>>> > >>>>> Marty > >>>>> > >>>>> > >>>>> On Sunday, 12 January 2014, Adam Bridge wrote: > >>>>> > >>>>>> I read this report yesterday. I?m not sure what to do with it. > Leica?s > >>>>>> experiment with the monochrom seems to have come years too late. > >>>>>> > >>>>>> There are many reasons, of course, why a monochrome sensor makes > sense > >>>> for > >>>>>> those of us who want to shoot black and white. But will Sony make > the > >>>>>> gamble? Is there enough of a market to make it worthwhile? > >>>>>> > >>>>>> On one hand Sony is trying to up its stake in the high-end market so > >> the > >>>>>> monochrome model of the A7 (or whatever) would make sense. But they > >>>> would > >>>>>> probably need to see sales in the 10s of thousands for it to pay off > >> for > >>>>>> them. Is the market large enough? > >>>>>> > >>>>>> With the low end of the market being eaten up by camera phones (many > >> of > >>>>>> which are quite good - I?m sure impressed by the cameras in the > >> iPhone 5 > >>>>>> and most especially that of the iPhone 5s) the upper end is the > chance > >>>> for > >>>>>> camera companies to compete and perhaps prosper. > >>>>>> > >>>>>> I?m hopeful but not optimistic. > >>>>>> > >>>>>> Adam > >>>>>> > >>>>>> On Jan 11, 2014, at 9:15 AM, Douglas Nygren < > douglasnygren at yahoo.com > >> <javascript:;> > >>>> <javascript:;>> > >>>>>> wrote: > >>>>>> > >>>>>>> I don't know whether it's been noted yet on the lug, but a friend > >> sent > >>>>>> me a link to a story > >>>>>>> reporting a rumor that Sony is working on a black and white digital > >>>>>> camera. > >>>>>>> > >>>>>>> This would make sense. The Monochrom is priced to invite > competition > >> to > >>>>>> undersell it, > >>>>>>> and if it allows Leica lenses to be used on it, the rival makes > >> itself > >>>>>> all the more appealing. > >>>>>>> > >>>>>>> Here is the link: > >>>>>>> > >>>>>>> > >>>>>> > >>>> > >> > http://petapixel.com/2014/01/10/sony-supposedly-working-full-frame-camera-shoots-black-white/ > >>>>>>> > >>>>>>> > >>>>>>> Cheers--Doug > >>>>>>> > >>>>>>> _______________________________________________ > >>>>>>> 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 > >>>> > >>> > >>> _______________________________________________ > >>> 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 >