Archived posting to the Leica Users Group, 1997/06/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This is a multi-part message in MIME format. - ------=_NextPart_000_01BC833D.1AC9AE80 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Thanks for the education. So then what you are saying is that my 35/2.8 Sumaron w/eyes will work the same on my M-6 as it does on my M-3? Then my next question is how does this lens compare on the M-6 to, lets say a new 35mm lens... lets say the f2? Thanks MB - ---------- > From: Paul Schliesser <paulsc@eos.net> > To: Leica User's Group <leica-users@mejac.palo-alto.ca.us> > Subject: Re: M-6 Rebate ends soon....... > Date: Friday, June 27, 1997 12:54 AM > > >What happens when you use a lens with "eyes" on an M-6? > >Is focusing or anything else made more difficult? > >MB > > > The eyes work the same on any body. The 35mm with eyes pulls up the 50mm > frame, and the f/2.8 135mm pulls up the 90mm frame. In both cases, the > eyes will correct the angle of view of the viewfinder so that that > framing will be correct. Both lenses focus in the normal manner. > > The 35mm eyes will make the viewfinder more "wide angle." This was > originally intended to fit a 35mm view into the 50mm frame of the M3, but > it will work on any body. On bodies that already have the 35mm frame, the > angle of view is still increased by the same ammont, so the 50mm frame > (which is automatically selected by the lens) shows the correct framing > for the 35mm angle of view. This means that eyeglass wearers can see the > 35mm frame comfortably. There is no ill effect, other than the fact that > the rangefinder patch is made smaller. Sometimes, since there is an extra > lens in front of the viewfinder, you can get some reflections, but it's > not a big deal. > > With the 35mm eyes installed, the 28mm frame on an M6 shows about the > angle of view of a 21mm lens. Tom Abrahamsson in Canada made (or makes) a > special lens using old 21mm Super Angulons and the eyes from old 35mm > lenses, to make a 21mm lens for the M4-P and M6 which doesn't need an > accessory finder. > > This works because as you go 21/28/35/50/75/90/135, each focal length is > close to 1.4 times the focal length of the previous one. It's not exact, > but it's within about 10% in most cases. Since you increase the angle of > view of the the viewfinder by about this ammount, all of the frames > appear to be enlarged proportionatly. The Abrahamsson lens works because > the relationship between 28mm and 21mm is close to that between 35mm and > 50mm. > > The f/2.8 135mm eyes are intended to make the small 135mm frame larger > and to magnify the rangefinder patch to make focusing more accurate. It > does the opposite of the 35mm eyes--it enlarges the viewfinder and > selects the 90mm frame, which now shows the 135mm angle of view. > > > - Paul - ------=_NextPart_000_01BC833D.1AC9AE80 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <html><head></head><BODY bgcolor=3D"#FFFFFF"><p><font size=3D2 = color=3D"#000000" face=3D"Arial">Thanks for the education. So then what = you are saying is that my 35/2.8 Sumaron w/eyes will work the same on my = M-6 as it does on my M-3? Then my next question is how does this lens = compare on the M-6 to, lets say a new 35mm lens... lets say the = f2?<br>Thanks<br>MB<br><br>----------<br>> From: Paul Schliesser = <<font color=3D"#0000FF"><u>paulsc@eos.net</u><font = color=3D"#000000">><br>> To: Leica User's Group <<font = color=3D"#0000FF"><u>leica-users@mejac.palo-alto.ca.us</u><font = color=3D"#000000">><br>> Subject: Re: M-6 Rebate ends = soon.......<br>> Date: Friday, June 27, 1997 12:54 AM<br>> = <br>> >What happens when you use a lens with "eyes" on = an M-6?<br>> >Is focusing or anything else made more = difficult?<br>> >MB<br>> <br>> <br>> The eyes work the = same on any body. The 35mm with eyes pulls up the 50mm <br>> frame, = and the f/2.8 135mm pulls up the 90mm frame. In both cases, the <br>> = eyes will correct the angle of view of the viewfinder so that that = <br>> framing will be correct. Both lenses focus in the normal = manner.<br>> <br>> The 35mm eyes will make the viewfinder more = "wide angle." This was <br>> originally intended to fit a = 35mm view into the 50mm frame of the M3, but <br>> it will work on = any body. On bodies that already have the 35mm frame, the <br>> angle = of view is still increased by the same ammont, so the 50mm frame = <br>> (which is automatically selected by the lens) shows the correct = framing <br>> for the 35mm angle of view. This means that eyeglass = wearers can see the <br>> 35mm frame comfortably. There is no ill = effect, other than the fact that <br>> the rangefinder patch is made = smaller. Sometimes, since there is an extra <br>> lens in front of = the viewfinder, you can get some reflections, but it's <br>> not a = big deal.<br>> <br>> With the 35mm eyes installed, the 28mm frame = on an M6 shows about the <br>> angle of view of a 21mm lens. Tom = Abrahamsson in Canada made (or makes) a <br>> special lens using old = 21mm Super Angulons and the eyes from old 35mm <br>> lenses, to make = a 21mm lens for the M4-P and M6 which doesn't need an <br>> accessory = finder.<br>> <br>> This works because as you go = 21/28/35/50/75/90/135, each focal length is <br>> close to 1.4 times = the focal length of the previous one. It's not exact, <br>> but it's = within about 10% in most cases. Since you increase the angle of <br>> = view of the the viewfinder by about this ammount, all of the frames = <br>> appear to be enlarged proportionatly. The Abrahamsson lens = works because <br>> the relationship between 28mm and 21mm is close = to that between 35mm and <br>> 50mm.<br>> <br>> The f/2.8 135mm = eyes are intended to make the small 135mm frame larger <br>> and to = magnify the rangefinder patch to make focusing more accurate. It = <br>> does the opposite of the 35mm eyes--it enlarges the viewfinder = and <br>> selects the 90mm frame, which now shows the 135mm angle of = view.<br>> <br>> <br>> - Paul</p> </font></font></font></font></font></body></html> - ------=_NextPart_000_01BC833D.1AC9AE80--