ron_l Posted January 24, 2003 Share Posted January 24, 2003 Has anyone changed the flip up magnifer in their TLR waistelevel viewfinder? I wanted to increase the magnification of the magnifier to help with critical focussing. Thanks for your replies. Link to comment Share on other sites More sharing options...
kevin_hundsnurscher Posted January 24, 2003 Share Posted January 24, 2003 Just as an initial test, have you held a stronger magnifying glass up to the viewfinder to see if it gave you the results you were looking for? I've heard of people rigging up loupes to their viewfinders. Link to comment Share on other sites More sharing options...
al_kaplan1 Posted January 24, 2003 Share Posted January 24, 2003 The magnification is a function of it's focal length, thus for a given magnification it has to be the proper distance from the gorund glass screen. If you put in a stronger magnifier it will be focussed at a point above the viewing screen. Life is complicated... Link to comment Share on other sites More sharing options...
steve_barnett2 Posted January 24, 2003 Share Posted January 24, 2003 Err, thanks Al, so how do the Rollei diopters work? But to answer the question. They are available in +3 to -3 strength. You may need to go to the optician to get a prescription for the one you need. Link to comment Share on other sites More sharing options...
norman_trabulus1 Posted January 24, 2003 Share Posted January 24, 2003 I have no expertise on these things but think that there may be more to it than what Al said. I have an ancient Old Standard Rollei and two more modern Rolleis. The magnification of the Old Standard's magnifier is noticeably less than that on the newer ones, though the distance from the magnifying lens to the focusing screen is the same. Link to comment Share on other sites More sharing options...
bob_rannells Posted January 24, 2003 Share Posted January 24, 2003 I've changed the magnifier in a couple of my Yashicamats. I bought the diopters (magnifiers) from Mamiya directly. I think they still sell them. These are the diopters for their twin lens cameras. The diopters are all pretty much the same size, Mamiya, Rollei, Yashica, Minolta. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted January 25, 2003 Share Posted January 25, 2003 Norman; here is the exposure meter on my Standard. Is yours similar? What batteries does yours take? :) <BR><BR><img src="http://www.ezshots.com/members/tripods/images/tripods-261.jpg"> Link to comment Share on other sites More sharing options...
norman_trabulus1 Posted January 25, 2003 Share Posted January 25, 2003 Kelly, mine is 1932 version, in German. Typical film speed must have doubled between 1932 and 1936, since the exposures given on mine are double those on yours (e.g., "Strasse hell; Platze f/16 @ 1/25".) F3.8 Tessar is a fine lens, great color rendition for a lens made before color film existed. Link to comment Share on other sites More sharing options...
tito sobrinho Posted January 25, 2003 Share Posted January 25, 2003 Norman, does your Rolleiflex (Old Standard Type 2) have a bubble level incorporated on the ground glass? I can not find any reference in my Rollei books. Mine as well as Kelly's have the bubble.( Old Standard Type 3).Thanks for your response, Tito. Link to comment Share on other sites More sharing options...
norman_trabulus1 Posted January 25, 2003 Share Posted January 25, 2003 No bubble level. Max shutter speed 1/300. You guys must have the souped-up version. Link to comment Share on other sites More sharing options...
ron_l Posted January 25, 2003 Author Share Posted January 25, 2003 thanks guys Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted January 25, 2003 Share Posted January 25, 2003 My Rollei Standard has a 1/500 Compur; bubble level on the ground glass; ground glass with x,y grid; F3.5 lens; and lens distances in meters. Setting the camera to 1/500 adds an extra tension spring. The Film speed numbers on by cameras back are H. & D. numbers; a system used prior to WW2. Link to comment Share on other sites More sharing options...
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