Archived posting to the Leica Users Group, 2016/02/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You did really well with these, but I am intrigued by the split image?I had no idea Fuji had it. Maybe I should look in the manual after all. Cheers, Nathan Nathan Wajsman Alicante, Spain http://www.frozenlight.eu <http://www.frozenlight.eu/> http:// <http://www.greatpix.eu/>www.greatpix.eu PICTURE OF THE WEEK: http://www.fotocycle.dk/paws <http://www.fotocycle.dk/paws>Blog: http://nathansmusings.wordpress.com/ <http://nathansmusings.wordpress.com/> Cycling: http://www.crazyguyonabike.com/belgiangator <http://www.crazyguyonabike.com/belgiangator> YNWA > On 12 Feb 2016, at 07:53, Jayanand Govindaraj <jayanand at gmail.com> > wrote: > > Never tried it. I find Focus Peaking works quite well, even for my weakish > eyesight, as long as the subject is stationary. Here are some samples which > I took mainly at the behest of Alastair Firkin, with various lenses mounted > on the Fuji XT-1, all manually focused with the aid of focus peaking. All > are just default processed in Lightroom, with no additional processing. The > models were my niece Shreeya, and my younger son, Aditya : > > The first was an unscientific look at both the Summicron and the Fuji 56mm > as short portrait lenses, both at f2: > > Shreeya - Leica Summicron: > http://gallery.leica-users.org/v/jayanand/album333/Leica+Summicron+50.jpg.html > > Shrreya - Fuji 56mm: > http://gallery.leica-users.org/v/jayanand/album333/Fuji+56.jpg.html > > Then, two of Aditya with the Tele-Elmarit 90mm wide open: > > Natural Light: > http://gallery.leica-users.org/v/jayanand/album333/1+Natural+Light.jpg.html > > Artificial Light: > http://gallery.leica-users.org/v/jayanand/album333/2+Fluoroscent+Light.jpg.html > > Cheers > Jayanand > > On Fri, Feb 12, 2016 at 11:47 AM, Peter Klein <boulanger.croissant at > gmail.com >> wrote: > >> Ah, another check mark on Fuji's chalkboard. Didn't know they had a split >> image. How accurate is it? One advantage of a "real" RF is that the >> physical baselength can be as long as can fit on the camera body, whereas >> the physical baselength of the digital split image is the diameter of the >> lens. Although some magnification could mitigate that...? >> >> I will sometimes put a Leica lens on my Olympus E-M5, usually for >> telephoto. A 90mm Leica mount lens makes a rather compact 180mm >> equivalent. I usually just use the digital focus magnifier. Easy. >> >> --Peter >> >> On Thu, Feb 11, 2016 at 9:52 PM, Jayanand Govindaraj <jayanand at >> gmail.com> >> wrote: >> >>> Both a Digital Split Image overlay and Focus Peaking as manual focus aids >>> are available on my Fuji XT-1, which accepts M lenses quite effortlessly >>> with an adapter. In fact Fuji themselves make an adapter. >>> Cheers >>> Jayanand >>> >>> On Fri, Feb 12, 2016 at 8:42 AM, Peter Klein < >>> boulanger.croissant at gmail.com> >>> wrote: >>> >>>> In theory it should work just fine. You leave the lens on infinity, and >>> the >>>> adapter does the rest. The adapter must: >>>> >>>> -Interface to the camera's AF electronics such that the camera can tell >>> it >>>> "forward, back, stop"). >>>> -Be thin enough to allow infinity focus. >>>> -Contain motors and a mechanism that will rack the lens out >> sufficiently >>> to >>>> focus the lens to a reasonable close distance. The mechanism must fit >> in >>>> the adapter. This is easier to do with SLR lens adapters. M lenses >> have a >>>> shorter back focus distance, and M to mirrorless adapters are quiet >> short >>>> compared to SLR adapters. Perhaps some of the mechanism could be below >>> the >>>> adapter, or concentric to it.) >>>> >>>> The major problems with M lenses on other cameras would still be corner >>>> smearing and color shifts, unless the sensor's Bayer array was designed >>> for >>>> M lenses. And would the autofocus be fast and accurate enough, and >> would >>>> using the adapter be convenient enough that you wouldn't get fed up >> with >>> it >>>> quickly? >>>> >>>> Personally, I'd love to have an autofocus M that also did RF focusing. >>> But >>>> as Larry mentions, it would have to be worth someone's while to >>>> manufacture. Most manufacturers have already passed on making their own >>>> rangefinder mechanism. Leica seems to be willing to make RF cameras >> along >>>> traditional M lines, but not to do anything radical with them. But >> what >>>> about something entirely new by a third party--an AF camera that also >> did >>>> some sort of visual rangefinder simulation in an EVF, and was designed >> to >>>> take M lenses. Ideally, the version for M lenses would have a Bayer >> array >>>> with microlens offsets licensed from Leica. The SLR lens version would >>>> have a more conventional sensor. >>>> >>>> All technically possible. The big question is whether there are enough >>>> legacy(*) lens fans, and in particular M lens fans, to make such a >> camera >>>> commercially viable. >>>> >>>> --Peter, who actually dislikes the word "legacy." >>>> >>>> On Thu, Feb 11, 2016 at 4:22 PM, Larry Zeitlin via LUG < >>>> lug at leica-users.org> >>>> wrote: >>>> >>>>> About 40 years ago, give or take a decade, a precision camera make, >>>>> probably Zeiss. marketed a camera in which the focus was adjusted by >>>> moving >>>>> the film plane. This simplified lenses but had the downsides of >>> increased >>>>> expense for the camera body and the difficulty of providing enough >>> motion >>>>> for long focus lenses. The idea was abandoned after a few years but I >>>>> believe that with modern electronics it could provide automatic focus >>>> for M >>>>> lenses. But, of course, there would be little incentive for Leica to >>>> adopt >>>>> such a system. Maybe a third party could sell a universal camera >> which >>>>> would autofocus with all makers lenses. >>>>> Larry Z >>>>> >>>>> + + + >>>>> LUG: >>>>> >>>>> Any idea whether this would actually work or not? >>>>> >>>>> >>>>> >>>> >>> >> http://www.thephoblographer.com/2016/02/11/the-techart-pro-lens-adapter-promises-autofocus-for-leica-m-mount-glass/#.VrywD_krJaQ >>>>> >>>>> Tina >>>>> >>>>> _______________________________________________ >>>>> 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