Archived posting to the Leica Users Group, 2009/07/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Anyone know where to find a picture or diagram of an OKVZO? Jim On Wed, Jul 8, 2009 at 2:26 AM, Douglas Sharp<douglas.sharp at gmx.de> wrote: > Jim, > > I just looked in The Leica Collectors Guide (Laney) > > There was one for near or short sightedness - OKBZO (1951) > and one for astigmatism OKVCO (1960) > > Cheers > Douglas > > James Laird wrote: >> >> Did Leica make diopters for the viewfinder of the IIIg? >> >> Jim >> >> On Tue, Jul 7, 2009 at 1:31 AM, Dennis<dennis at hale-pohaku.net> wrote: >> >>> >>> Understand that the LTM cameras with a built in rangefinder have a >>> separate >>> window for the rangefinder and viewfinder. It it the rangefinder window >>> that >>> has a diopter adjustment, not the viewfinder. >>> >>> They pretty much had to put the diopter adjustment on the rangefinder >>> because it magnifies 1.5x it's really a focus adjustment for what can be >>> looked at as a low magnification telescope. >>> >>> Note that the IIIg viewfinder is 0.7 magnification and of course has >>> illuminated lines to indicate both the 50mm and 90mm field of view with >>> parallax correction. If you don't use eyeglasses and can see the entire >>> field of view through the finder it's close enough to serve for use with >>> a >>> 35mm lens. >>> >>> The M3 was introduced in 1954 and the IIIg in 1957. As much as anything I >>> think the IIIg was in response to photographers that liked the smaller >>> size >>> of the LTM models and that felt the price of the M3 was too dear. When >>> Leica >>> designed the finder for the M2 they reduced the cost significantly and >>> that >>> pretty much took away the cost reason and most photographers realized the >>> M >>> was a better solution thus the IIIg was discontinued. >>> >>> James Laird wrote: >>> >>>> >>>> Makes you wonder why they left it off the M series. >>>> >>>> Jim >>>> >>>> On Mon, Jul 6, 2009 at 11:43 AM, Douglas Sharp<douglas.sharp at gmx.de> >>>> wrote: >>>> >>>> >>>>> >>>>> Hi Jim, >>>>> >>>>> there's a little lever under the rewind knob to adjust the diopter >>>>> setting, >>>>> on my IIIg it's a little loose and easily knocked of setting. >>>>> I think the range must be about -2 to +2 >>>>> >>>>> Cheers >>>>> Douglas >>>>> >>>>> James Laird wrote: >>>>> >>>>> >>>>>> >>>>>> I read somewhere the IIIg viewfinder has built-in diopter adjustment. >>>>>> Is this true? >>>>>> >>>>>> Jim >>>>>> >>>>>> >>> >>> _______________________________________________ >>> 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 >