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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
233:
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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253:. The high cost of quality lenses led to the dual use camera/enlarger of the lenses, hence the fact that
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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
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218:The Soviets later adopted the LTM mount for their
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8:
225:The mount was developed by Oskar Barnack at
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69:Learn how and when to remove this message
173:. It is also the most common mount for
161:mounting system for attaching lenses to
32:This article includes a list of general
93:Leitz Summicron 50 mm in M39 lens mount
80:
7:
966:
936:Leica Historical Society of America
316:Leica vs. Soviet mounts & focus
200:in M39×1 (39 mm by 1 mm
38:it lacks sufficient corresponding
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186:Royal Microscopical Society (RMS)
965:
954:
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257:also accept 39 mm lenses.
16:Standard lens mount for cameras
1:
264:Detail of the mounting of a
520:M (Typ 240) / M-P (Typ 240)
194:microscope objective lenses
1015:
999:Leica thread-mount lenses
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598:
377:
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638:Leica R4 / R5 / R6 / R7
332:Standard: GOST 10332-72
324:Standard: GOST 10332-63
211:True LTM lenses have a
53:more precise citations.
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238:, and featured on the
188:thread, also known as
921:List of Leica cameras
545:M Monochrom (Typ 246)
263:
213:flange focal distance
175:Photographic enlarger
628:Leicaflex / SL / SL2
931:Leica Freedom Train
854:Elmar / Super Elmar
791:Leica Q / Leica Q-P
727:Leica CL (Typ 7323)
555:M10 / M10-P / M10-R
251:rangefinder cameras
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732:Leica SL (Typ 601)
611:Single-lens reflex
429:Leica 250 Reporter
387:Leica Microsystems
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144:Telemeter coupling
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980:
779:Leica X (Typ 113)
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749:
712:Leica T (Typ 701)
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676:Leica S (Typ 007)
671:Leica S (Typ 006)
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580:Four Thirds mount
502:M mount (digital)
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107:External diameter
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926:Ernst Leitz GmbH
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382:Leica Geosystems
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49:this article by
40:inline citations
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756:Digital compact
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204:thread). Early
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45:Please help to
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439:M mount (film)
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299:M42 lens mount
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240:Leica Standard
190:society thread
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115:Inner diameter
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905:Heinrich Wild
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774:Leica X Vario
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643:Leica R8 / R9
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565:M10 Monochrom
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535:M-E (Typ 240)
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525:M-E (Typ 220)
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294:Leica M mount
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163:35 mm cameras
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406:Thread-mount
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371:Leica Camera
329:(in Russian)
321:(in Russian)
279:brand — and
270:
248:
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217:
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189:
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165:, primarily
159:screw thread
151:
149:
65:
56:
37:
994:Lens mounts
822:Camera lens
742:Leica SL2-S
540:M Monochrom
530:M (Typ 262)
477:M6 / M6 TTL
397:Rangefinder
277:Voigtländer
271:Currently,
198:FED cameras
167:rangefinder
59:August 2017
51:introducing
988:Categories
695:Mirrorless
305:References
266:Leica IIIf
231:Zeiss Ikon
155:lens mount
141:Connectors
34:references
839:Summicron
813:Digilux 2
808:Digilux 1
784:Leica X-U
737:Leica SL2
722:Leica TL2
588:Digilux 3
515:M9 / M9-P
424:Leica III
255:enlargers
244:Leica III
182:Whitworth
960:Category
859:Summaron
844:Summarit
834:Summilux
829:Noctilux
801:Leica Q3
796:Leica Q2
769:Leica X2
764:Leica X1
717:Leica TL
681:Leica S3
666:Leica S2
661:Leica S1
633:Leica R3
419:Leica II
288:See also
236:Leica II
177:lenses.
972:Commons
849:Elmarit
704:L mount
653:S mount
620:R mount
310:Sources
136:28.8 mm
47:improve
873:People
864:Hektor
273:Cosina
171:Leicas
132:Flange
36:, but
941:Lumix
914:Other
560:M10-D
227:Leica
220:Zenit
206:Canon
169:(RF)
157:is a
110:39 mm
102:Screw
242:and
150:The
123:Tabs
99:Type
570:M11
550:M-D
492:M-A
281:FED
202:DIN
152:M39
126:N/A
118:N/A
82:M39
990::
510:M8
487:MP
482:M7
472:CL
467:M5
462:M4
457:M1
452:M2
447:M3
246:.
363:e
356:t
349:v
72:)
66:(
61:)
57:(
43:.
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