Archived posting to the Leica Users Group, 2008/01/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]62mm <http://www.leica-camera.us/photography/r_system/lenses/506.html> On Jan 24, 2008, at 2:46 PM, Richard Man wrote: > Someone speculates that my wish for info on the image circle size > for the 28/2.8 is may be for the fabled R10.... Nah, so if you have > the info, I'd much appreciate it if you can let me know! > > As for why. Herein lies a tale, or tail... All photos Neopan 1600 > souped in Harvey 777. Who says Film is Dead? > > First, an image made with the Summicron 50 R: > http://www.dragonsgate.net/pub/richard/PICS/Scan-080124-0012.jpg > > Big deal, motion blur blah blah blah, but what if I say the > Summicron is scale focused? > > Surely that's stupid, and it is. It's a test really. Here's at F2, > picture no great shake, but at least one eye is sharp as tack: > http://www.dragonsgate.net/pub/richard/PICS/Scan-080124-0004.jpg > > But seriously, who would want to scale focus a R lens? No one for > sure, but... > > I can get really close: > http://www.dragonsgate.net/pub/richard/PICS/Scan-080124-0022.jpg > > The 'cron gives nice tonesI think it's the 777 at work. The 'cron > is cheap too, compared to the M lens. I bought it from KEH for $249 > and it looks pretty "mint" to me. Much bigger than the M lens though. > > Anyway, if you read this far and have not gone away with un- > interest, perhaps the format gives a little hint on what I am > trying to do. Here are two more hints: > > Mid distance: > http://www.dragonsgate.net/pub/richard/PICS/Scan-080124-0024.jpg > > Far: > http://www.dragonsgate.net/pub/richard/PICS/Scan-080124-0021.jpg > > Interesting that vignetting only happen on medium to far distance, > but close up is fine, although still not covering the full format. > > To shorten the, um, tale, my ultimate goal is to adapt the 28/2.8 > PC (if needed be) to the XPan WITH RF-focusing. Why not just use > the Fuji/Hassy 30mm? I have the 30mm, and it's very good and all > but it's F5.6 and more like F9-F11 when the center filter is used > (which is highly recommended). If I can get the 28/2.8 to work, I > am 4 stops ahead. > > After 6-8 months of pestering many people, I have finally gotten a > shop (which specializes in this sort of things) to see if they can > build a RF CAM. The 50 Summicron is for a prototype to see if the > idea can be made to work. I am pleasantly surprised that, as some > of you wrote earlier, that the 50/2 has a rather large image > circle, 75% or so of the XPan requirement. I know for sure that the > 28 PC's image circle is large enough, but it would be even sweeter > if the Elmarit's image circle is large enough as it is a much > smaller lens. I sort of doubt it, but one can hope and dream! > > I also understand that the 28 PC is really a Schneider lens, so if > I go down that route, I'd probably find a non-mounted version and > have the machine shop build a custom mount... We will see.. > > // richard (This email is for mailing lists. To reach me directly, > please use richard at imagecraft.com) > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information Fond regards, George george@imagist.com www.imagist.com http://www.imagist.com/blog Picture A Week - www.imagist.com/paw_07