MTC Photography Posted December 21, 1998 Share Posted December 21, 1998 What is the difference between Minotar and Minoxar on Minox 35mm cameras Link to comment Share on other sites More sharing options...
MTC Photography Posted December 25, 1998 Author Share Posted December 25, 1998 Minotar and Minoxar are Tessar type four elements three group design. 35mm/F2.8 Minotar is used in Minox 35ML and other Minox 35mm cameras; Minoxar 35mm/F2.8 lens is a better lens, it focused closer to 70 cm (2.3' ) vs 90 cm (3 feet) of Minotar. Minotar or Minoxar lens is focused by turning a high power front element. Front element focusing is common in many cameras with Tessar lens, such as Rollei 35, Zeiss Ikon Contessa etc. Since the front element of a Tessar type lens has three times the power of whole lens, the focusing movement required is only 1/9 of unit focusing, this is evident from Minoxar/Minotar, the front element movement is about 1 mm, very small. <p><img src="http://www.accessv.com/~martntai/public_html/manual/MINOXAR.JPG"border=2> Link to comment Share on other sites More sharing options...
MTC Photography Posted December 25, 1998 Author Share Posted December 25, 1998 Minoxar lens is also multcoated. Lens coating is a technique pioneered by Zeiss in coating glass surfaces with quarter wave length floride, to reduce the reflection loss of incident light. Mulitple coatings reduce reflection exponentially vs number of coating; buy using different quarter wave lengths, the transmision effficienty can be made across a broad spectrum. Multicoated lens has better color rendition. Link to comment Share on other sites More sharing options...
julian__ Posted July 5, 1999 Share Posted July 5, 1999 Hi Martin, <p> When you mention that the Minoxar lens is multi-coated, does this imply that the Minotar (older) lens are not multi-coated? Single coated then? Thanks. Link to comment Share on other sites More sharing options...
MTC Photography Posted July 5, 1999 Author Share Posted July 5, 1999 Julian, the Minotar lens is single coated. Link to comment Share on other sites More sharing options...
MTC Photography Posted February 11, 2001 Author Share Posted February 11, 2001 Minoxar and Minoctar lenses are the only sucessful wide angle Tessar type 4 element lens. <p> There are other 35mm/f2.8 lens but they could not achieve with as few element For example, Nikon 35mm/2.8 had to use 5 elements Olympus XA Zuiko had to use 6 elements for 35mm/F2.8 ( quite a bit of flare and not as sharp ) Not even Carl Zeiss, they need to use 6 elements for the Distagon 35mm/f2.8 lens for Contax SLR. Minoxar/Minoctar is the king of wide anngle Tessar type lens Link to comment Share on other sites More sharing options...
MTC Photography Posted February 11, 2001 Author Share Posted February 11, 2001 When I photograph architecture subjects, I always amaze at the almost unnoticeable distortion of Minoctar/Minoxar lens. A column is amazingly ruler straight. I know, because my 50mm/f2.8 Carl Zeiss Tessar lens, even though it is not a wide angle lens, should be easier to design, yet it has slight pincushion distortion. I have an expensive 6 element F2.8 lens, yet it has visible barrel distortion ! While the 4 element Minoxar gives me straight columns ! <p> Minoctar/Minoxar lens is absolutely amazing Who ever designed the Minoctar/Minoxar was an optics wizard. Link to comment Share on other sites More sharing options...
MTC Photography Posted May 28, 2002 Author Share Posted May 28, 2002 <h3> Happy 100th Birthday Tessar </a> <p> Carl Zeiss is celebrating the centenary of Tessar lens designed byPaul Rudolph in 1902<a href="http://www.zeiss.de/C12567A8003B58B9/allBySubject/E1B13C0B784C351CC1256BA40043C2C0">Eagle Eye Tessar </a> Link to comment Share on other sites More sharing options...
MTC Photography Posted May 28, 2002 Author Share Posted May 28, 2002 <a href="http://www.zeiss.de/C12567A8003B58B9/allBySubject/48650323292A75 EE41256A5300381623">More on Tessar </a> Link to comment Share on other sites More sharing options...
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