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M39 lens mount

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in Ukraine continue to produce camera bodies using a true Leica thread-mount. These give amateurs the rare chance of having a very professional camera by combining a used Leica lens with an M39 body at a price well below a real Leica combination. On the other hand, one has to be careful as there are
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had indicated that their forthcoming Contax rangefinder cameras would have interchangeable lenses. The LTM system was tested at the request of Leitz on lenses manufactured in small batches by Hugo Meyer in Germany and marketed with a run of Leitz cameras by A. O. Roth in London. The test marketing
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some issues with some bodies not using the same focusing system. Adaptors are available to use M39 lenses with modern digital cameras, such as the Canon EF-M, Sony E or Nikon Z mounts.
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single-lens-reflex (SLR) cameras, though with the longer optical registration of 45.2 mm, required to allow the mirror room to flip out of the focal path when a picture was taken.
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and Leitz was a major manufacturer of microscopes, so the tooling at the plant was already set up to produce the Whitworth thread form. The Soviets in the 1930s produced their early
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True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of
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to provide a system that would allow for the exchange of lenses on their new small film cameras (Leica Type 1 and Leica Type 2), as
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program was a success, so regular production with Leitz camera bodies and lenses was introduced on the
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Marc James Small. Non-Leitz Leica Thread-Mount Lenses: a 39mm Diversity. Rita Wittig, 1995.
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of 28.8 mm, though this is of little importance for lenses used on bellows enlargers.
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thread form. Whitworth threads were then the norm in microscope manufacture. The
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Until the 1950s the 39 mm mount was the norm for exchangeable lenses in
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cameras also used a different M39 × 24 tpi thread mount, called "J-mount".
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in Japan — many of whose recent products are marketed under the
203:, is a special 0.8" diameter x 36 tpi Whitworth thread used for 354: 350: 29: 924: 883: 832: 765: 713: 704: 662: 629: 620: 589: 511: 448: 415: 406: 151: 141: 133: 125: 117: 109: 229:The Soviets later adopted the LTM mount for their 366: 8: 236:The mount was developed by Oskar Barnack at 92: 710: 626: 412: 373: 359: 351: 98: 80:Learn how and when to remove this message 184:. It is also the most common mount for 172:mounting system for attaching lenses to 43:This article includes a list of general 104:Leitz Summicron 50 mm in M39 lens mount 91: 7: 977: 947:Leica Historical Society of America 327:Leica vs. Soviet mounts & focus 211:in M39×1 (39 mm by 1 mm 49:it lacks sufficient corresponding 25: 197:Royal Microscopical Society (RMS) 976: 965: 964: 611: 34: 268:also accept 39 mm lenses. 27:Standard lens mount for cameras 1: 275:Detail of the mounting of a 531:M (Typ 240) / M-P (Typ 240) 205:microscope objective lenses 1026: 1010:Leica thread-mount lenses 960: 609: 388: 97: 649:Leica R4 / R5 / R6 / R7 343:Standard: GOST 10332-72 335:Standard: GOST 10332-63 222:True LTM lenses have a 64:more precise citations. 279: 249:, and featured on the 199:thread, also known as 932:List of Leica cameras 556:M Monochrom (Typ 246) 274: 224:flange focal distance 186:Photographic enlarger 639:Leicaflex / SL / SL2 942:Leica Freedom Train 865:Elmar / Super Elmar 802:Leica Q / Leica Q-P 738:Leica CL (Typ 7323) 566:M10 / M10-P / M10-R 262:rangefinder cameras 94: 743:Leica SL (Typ 601) 622:Single-lens reflex 440:Leica 250 Reporter 398:Leica Microsystems 280: 155:Telemeter coupling 18:Leica thread-mount 992: 991: 790:Leica X (Typ 113) 761: 760: 723:Leica T (Typ 701) 700: 699: 687:Leica S (Typ 007) 682:Leica S (Typ 006) 607: 606: 591:Four Thirds mount 513:M mount (digital) 159: 158: 118:External diameter 90: 89: 82: 16:(Redirected from 1017: 980: 979: 968: 967: 937:Ernst Leitz GmbH 711: 627: 615: 413: 393:Leica Geosystems 375: 368: 361: 352: 341: 333: 102: 95: 85: 78: 74: 71: 65: 60:this article by 51:inline citations 38: 37: 30: 21: 1025: 1024: 1020: 1019: 1018: 1016: 1015: 1014: 995: 994: 993: 988: 956: 920: 879: 828: 767:Digital compact 757: 696: 658: 616: 603: 585: 507: 444: 402: 384: 379: 339: 331: 323: 318: 301: 215:thread). 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Index

Leica thread-mount
references
inline citations
improve
introducing
Learn how and when to remove this message

Flange
lens mount
screw thread
35 mm cameras
rangefinder
Leicas
Photographic enlarger
Whitworth
Royal Microscopical Society (RMS)
microscope objective lenses
FED cameras
DIN
Canon
flange focal distance
Zenit
Leica
Zeiss Ikon
Leica II
Leica Standard
Leica III
rangefinder cameras
enlargers

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