Compatibility list of M42 and manual lenses
on Canon EOS 5D DSLR

... and some others with different mount:
Olympus Zuiko OM - Asahi Pentax PK - Contax Zeiss / Yashica C/Y -
Praktina - Rollei QB - Leica R - Nikon - Voigtländer - Schneider DKL - tbc...

last updated 29-10-2011
(October 29 2011)

The focal range from 100mm upwards is not affected, so it doesn't appear here. All the M42 lenses have been tested with the Jolos ring (1.45 mm) in silver finish, as shown in the background picture. (M42->EOS)

A different adapter and 5D mirror tolerances may cause different results.
Please use the results here at your own risk.

Albinar | Auto Reflecta | Beroflex | Carl Zeiss Jena M42 | CZJ Praktina | CZJ P6 | Chinon | Contax | Enna | Exaktar | Fuji | Hanimex | ISCO | Leica | Mamiya | Meyer | Miranda | Nikon | Olympus | Pentacon | Porst | Pentax | Raynox | Revue | Rollei QB | Sigma | Schacht | Schneider | Soligor | Steinheil | Tamron | Tokina | Vivitar | Voigtländer | Weltblick | Yashinon | Yashica C/Y | Zenit Russian | Links


You are welcome to report your experiences with lenses here:
x5d_comp@panoramaplanet.de
(please delete the adresses first letter....)

your VIgAGRA offers please here:
garbage@panoramaplanet.de
Manufacturer and lens
mirror hits lens back when focussing to infinity y/n
modification possible y/n
Albinar M42
Super Albinar SC 2.8 / 28 mm*
n
-
Auto Reflecta M42
 to top

Auto Reflecta 1.4 / 55 mm
aka: Sears, Chinon, Rikenon, Revuenon, Mamiya, Yashinon, Cosinon (lens supposably designed by Tomioka )
n
-
Beroflex M42
 to top
Fisheye 8 / 12 mm T2 mount (crap)
n
-
MC 3.5 / 23 mm
n
-
MC 2.8 / 28 mm
n
-
Carl Zeiss Jena CZJ M42
 to top
CZJ Flektogon MC 2.8 / 20 mm
n
-
Carl Zeiss Jena Flektogon
4 / 20 mm 1st version #6769655
n
-
Carl Zeiss Jena Flektogon
4 / 20 mm "zebra" "Aus Jena" #8450028
n
-

Carl Zeiss Jena Flektogon
4 / 20 mm "zebra" version for Pentacon Super

n turn the aperture to F22, press the little switch beside the aperture ring to the camera, turn the aperture to F4 until the mechanism in the aperture ring snaps in.
-

Carl Zeiss Jena Flektogon
4 / 20 mm black (and last) version #9867694

n
-

Carl Zeiss Jena Flektogon
4 / 25 mm * #6835457
Fotodiox black adapter

n
-
Carl Zeiss Jena Flektogon electric 2.4 / 35 mm MC
n
-
CZJ Flektogon 2.4 / 35 mm MC
n
-

Carl Zeiss Jena Flektogon
2.8 / 35 mm "Zebra" *
y
n

Carl Zeiss Jena Flektogon ALU preset 2.8 / 35 mm
y
n

Carl Zeiss Jena Flektogon leather ring 2.8 / 35 mm
y
n

CZJ Pancolar "aus Jena"
2 / 50 mm #6925064
(similar to Flexon)
n
-

CZJ Pancolar Zebra "Aus Jena"
1.8 / 50 mm first version*
#8476171
y file away in top of rear burr
y

CZJ Pancolar Zebra "Aus Jena"
1.8 / 50 mm first version
#8541999 (jaundice)
y filing may work, but I don't have the heart to do it...
n

CZJ Pancolar "aus Jena"
1.8 / 50 mm "zebra" second version #8555083
n
-

CZJ Pancolar "aus Jena"
1.8 / 50 mm "zebra" second version #8892978
y
n

CZJ Pancolar auto 1.8 / 50 mm MC # 14255
y
n
CZJ Tessar 4.5 / 40 mm Alu* 
 y
filing may work
CZJ Tessar 2.8 / 50 mm Alu semi-auto
n
-
CZJ Tessar 2.8 / 50 mm Alu preset # 4319834
y
n
CZJ Tessar 3.5 / 50 mm Alu preset # 3526210 *
y
n
CZJ Tessar 2.8 / 50 mm zebra
n
-
CZJ Tessar 2.8 / 50 mm (latest version)
n
-
Carl Zeiss Jena Biotar Alu
2 / 58 mm preset #347613*,
#3398522, #3865158
y filing away 0.5 mm seems to work...
y
Carl Zeiss Jena Biotar Alu
2 / 58 mm semi-auto *
n
n
Carl Zeiss Jena Biotar Alu
1.5 / 75 mm CZJ preset
y
n

CZJ Pancolar auto 1.8 / 80 mm MC *
y file away in top of rear burr
y
Carl Zeiss Jena 2.7-3.5 / 35-70 Vario-Pancolar
y
n
Carl Zeiss Jena
Praktina mount
 to top
Flektogon 2.8 / 25 mm *
n
-
Flexon 2 / 50 mm *
n
-
Biometar 2.8 / 80 mm *
n
-
Carl Zeiss Jena
Pentacon Six mount
 to top
Flektogon 4 / 50 mm 
n
-
Chinon M42
 to top
Auto Chinon 1.7 / 55 mm
n
-
Contax
Carl Zeiss Oberkochen
C/Y mount
 to top
Zeiss Distagon AE 4 / 18 mm 3
y
-
Zeiss Distagon AE 2.8 / 25 * mm
n
-
Zeiss Distagon MM 2.8 / 28 mm 1 3
n
-
Zeiss Distagon AE 2.8 / 35 mm  2
n
-
Zeiss Distagon MM 2.8 / 35 mm*
n
-
Zeiss Planar MM 1.7 / 50 mm 2 3
n
-
Zeiss Planar AE 1.4 / 50 mm 1
n
-
Zeiss Sonnar AE (Germany)
2.8 / 85 mm *
n
-
Zeiss Sonnar MM (Japan)
2.8 / 85 mm *
n
-
Zeiss Sonnar MM (Germany late) 2.8 / 85 mm *
blocks mirror on return path with a cheap adapter. Works fine with the good one (Happypagehk).
-
Zeiss Sonnar AE 1.4 / 85 mm *
n
-
Enna München
 to top
Enna Super-Lithagon 2.5 / 35 mm* Praktina mount
n
Exaktar M42
 to top
Exaktar Auto Wide 2.8 / 35 mm*
n
Fuji Fujinon M42
 to top
Fujinon EBC 1.4 / 50 mm

n You have to file down a little lug to get infinity focus
-
Fujinon EBC 1.8 / 55 mm
n You have to file down a little lug to get infinity focus
-
Fujinon 2.2 / 55 mm
(the only worse Fujinon ever ?)

n You have to file down a little lug to get infinity focus
-
Fujinon-W EBC 2.8 / 35 mm

n You have to file down a little lug to get infinity focus
-
Fujinon-W EBC 3.5 / 55 mm Macro*

n You have to file down a little lug to get infinity focus
-
Isco M42
 to top
-
ISCO Göttingen
Edixa-Westagon 2 / 50 mm
y
n
ISCO Göttingen
Westron 2.8 / 35 mm
y
n
ISCO Göttingen
Tele-Westanar 3.5 / 135 mm* 
(the only known 135 as far)
y
n
Hanimex M42
 to top
-
Hanimex MC Automatic*
2.8 / 28  mm  4
n
-
Leica
 to top
Leica Fisheye Elmarit 2.8 / 16
(Minolta) *		 y
n
Leica Elmarit 2.8 / 35 mm*
(2nd version)
n
-
Leica Summicron 2 / 50 mm* (1st version)
n
-
Mamiya Sekor M42
 to top
Mamiya Sekor 4 / 21 mm SX*
y
-
Mamiya Sekor 2.8 / 50 mm
n
-
Mamiya Sekor 1.8 / 55 mm black
n
-
Mamiya Sekor 1.4 / 55 mm * #13058 Canon 5D MK II
n
-
Mamiya Sekor 2.8 / 60 mm Macro*
n
-
Miranda M42
 to top
Miranda 1.8 / 50 mm*
n
-

Meyer Görlitz
( Meyer Optik Görlitz ) M42
 to top
Meyer 2.8 / 28 mm MC (1990)
y
n
Meyer Orestegon 2.8 / 29 mm
n
-
Meyer Lydith 3.5 / 30 mm
y
n
Meyer Primagon 4.5 / 35 mm
y
n
Meyer Oreston 1.8 / 50 mm *
n
-
Meyer Primoplan 1.9 / 58 mm
y
n
Meyer Telefogar 3.5 / 90 mm
y
n
Nikon AI / AIS
 to top
Nikon Nikkor (AIS) 3.5 / 18 mm* 
n  Fotodiox adapter
 -
Nikon Nikkor (non-AI)
4 / 20 mm *
y This lens has a metal piece that extends back. It is not a question of clearing the mirror, but simply not going on at all. It will work on an APS-C camera.
Filing may work.
Nikon Nikkor (AI + AIS) 2.8 / 24 mm *
n Chinese adapter, infinity OK
 -
Nikon Nikkor (AIS)
2 / 28 mm *
n 
 -
Nikon Nikkor (non-AI)
3.5/ 28 mm * all-black "K" version with rubber grip; small rear element; # 195884 - 279111
n will NOT mount the 5D because of the protruding aperture protection fin on the back. Filing the fin some 2mm is required. "This lens has a metal piece that extends back. It is not a question of clearing the mirror, but simply not going on at all." Picture ->
 -
Nikon Nikkor (AI + AIS)
3.5/ 28 mm *
n Chinese adapter, infinity OK
 -
Nikon Nikkor (AIS)
1.4 / 35 mm *
n
 -
Nikon PC-Nikkor (non-AI)
2.8 / 35 mm *
n
 -
Nikon Nikkor P
2.8 / 45 mm *
n
 -
Nikon Nikkor-S·C Auto
1.4 / 50 mm *
n
 -
Nikon Nikkor (AI)
2 / 50 mm *
y This lens has a metal piece that extends back. It is not a question of clearing the mirror, but simply not going on at all. It will work on an APS-C camera.
 -
Nikon Nikkor-S (non-AI)
1.2 / 55 mm *
n
 -
Nikon Nikkor 3.5 / 43-86 mm F *
n
 -
Olympus Zuiko
OM mount
 to top

Zuiko 2 / 21 MC AUTO-W 1:2 f=21mm 100490 Japan *

n
-

Zuiko 3.5 / 21 mm G.Zuiko Auto W (OM-Mount non-MC "silvernose" and black version)

with one version of the lens I had to unscrew the lens rear plate, and file off the metal nose, another copy worked fine without modification
y
ZUIKO 2 / 24 MC AUTO-W 1:2 f=24mm 100961 Japan *
n
Zuiko 2.8 / 24 H.ZUIKO AUTO-W 1:2.8 f=24mm 159050 *
n
-
Zuiko 2 / 28 MC * AUTO-W 1:2 f=28mm 114853 
n
-
Zuiko Auto-W* 3.5 / 28 G.ZUIKO AUTO-W 1:3.5 f=28mm 285282 *
n
-
Zuiko 2.8 / 35 mm
G. Zuiko Auto-W #118328
also OK : # 182823*
n
-
Zuiko 2 / 40 mm AUTO-S 40mm 1:2 106714 Japan *
n
-
Zuiko Auto 1.2 / 50 mm *
n
-
Zuiko Auto-S 1.8 / 50 mm *
n - you may have to unscrew the lens rear plate, and cut or file off the metal nose
y
Zuiko F.Zuiko Auto-S
1.8 / 50 mm # 398808
n
y
Zuiko F.Zuiko Auto-S
1.8 / 50 mm  made in Japan "JAPAN 5739406"
n
-
Zuiko 1.4 / 50 mm
Zuiko Auto-S (serial >1 million)
n
-
Zuiko 1.4 / 50 mm G.ZUIKO AUTO-S 1:1,4 f=50mm
# 677901 *
n
-
Zuiko 1.4 / 50 mm
Zuiko Auto-S # 733854
n
-
Zuiko 2 / 50 mm ZUIKO AUTO-MACRO 50mm 1:2 #103003 Lens made in Japan*
n
-
Zuiko Auto-Macro
3.5 / 50 mm # 130166
n
-
Zuiko 1.2 / 55 mm G.ZUIKO AUTO-S 1:1.2 f=55mm
# 159184 Japan *
n
-
Zuiko  2 / 85 mm *
n
-
Zuiko  2 / 90 AUTO-MACRO 90mm 1:2 # 102842
Lens made in Japan *
n
-
Zuiko  2.8 / 35-80  AUTO-ZOOM 35~80mm 1:2.8 #101916 Lens made in Japan*
n
-
Zuiko Auto-Zoom 4 / 75-150 mm 1:4 f=75~150mm
#409060*, #26545*
n
-
Olympus Zuiko M42
 to top
Olympus G-Zuiko 3.5 / 28 mm  Auto-W  #103067  *
n ? you may have to remove the aperture lever
-
Olympus G-Zuiko Auto-W
2.8 / 35 mm  #103141  *
n ? you may have to remove the aperture lever
-
Pentacon ex Meyer Optik Görlitz (PentaprismaContax) M42
 to top
Pentacon 2.8 / 29 mm
MC Auto
n
-
Pentacon 2.8 / 29 mm Auto
n
-
Pentacon 3.5 / 30 mm Preset
y
n
Pentacon 1.8 / 50 mm MC Auto
y
n
Pentacon 1.8 / 50 mm Auto
y
n
Pentacon 2.8 / 50 mm Domiplan Auto
y
n
Pentax Asahi Takumar M42
 to top
Pentax Fisheye Takumar
4 / 17 mm
EOS 5D MK II specific notice:
The filter adapter needs to be removed (unscrewed) from the back of the lens, as it hangs up the mirror at Infinity.
n
-
Pentax Super Takumar
3.5 / 24 mm*
(@ Fotodiox M42-EOS adapter)

y
n
Pentax S-M-C 3.5 / 28 mm
#8335392

n (another one blocked the mirror - be careful)
-
Pentax Super Takumar
3.5 / 28 mm*  #2614982 
(@ Fotodiox M42-EOS adapter)

n
-
Pentax Super Takumar
3.5 / 28 mm *

y

n
Pentax S-M-C Takumar
3.5 / 35 mm *

y

n
Pentax Super Takumar
2 / 35 mm *

y

n
Pentax Super Takumar
1.4 / 50 mm
y
n
Pentax S-M-C 1.4 / 50 mm
# 5677198
y
n
Pentax S-M-C Macro-Takumar
4 / 50 mm  # 5871150
n
-
Pentax Super Takumar
1.8 / 55 mm *
n
-
Pentax S-M-C  2 / 55 mm
n
-
Pentax Super Takumar
2 / 55 mm
n
-
Asahi Auto Takumar
2.2 / 55 mm*
n
-
Pentax Super Takumar
1.9 / 85 mm*
n
-
Pentax PK
 to top
Pentax FA 2.8 / 20 mm *
y - remove back ring and aperture lever
n
Pentax SMC 3.5 / 28 mm  Shift *
n 
-
Pentax SMC 2 / 35 mm *
n lens can be modified non-permanently by loosening the three small screws around the mount and removing the back ring. The aperture lever can be left in place. Vignettes rather heavily on the 5D.
-
Pentax FA 1.9 / 43 mm Limited *
n - remove back ring and aperture lever
-
SMC Pentax-A 1.4 / 50 mm
n - remove back ring and aperture lever
-
SMC Pentax-M 1.7 / 50 mm
n - remove back ring and aperture lever
-
Pentax SMC  1.8 / 85 mm *
n - remove back ring
-
Porst M42
 to top
Porst Color Reflex MC Auto I
2.5 / 24 mm
n
-
Porst Color Reflex MC Auto G
2.8 / 28 mm
n
-
Porst Color Reflex MC Auto H
2.8 / 28 mm
n
-
Porst Color Reflex Auto
2.8 / 28 mm
n
-
Porst Color Reflex MC Auto WW-AS 2.8 / 28 mm
you have to cut off the "nose" of the lenses backside
y
Porst Color Reflex MC Auto H
1.8 / 35 mm
n
-
Porst Color Reflex MC Auto F Makro 1.7 / 50 mm #830046
(Chinon-cushion ring)
y
n
Porst Color Reflex MC Auto F
1.8 / 50 mm
y
n
Porst Color Reflex MC Auto F
1.2 / 55 mm PK-mount (Cosina)
needs slight modification
y
Porst Color Reflex MC Auto G
1.4 / 55 mm # 809795
n
-
Porst Color Reflex MC Auto G
1.4 / 55 mm MC #126252
(Chinon-cushion ring)
y
n
Porst Color Reflex MC Auto G
1.4 / 55 mm MC #803931
(Komura-rubber ring)
y
n
Raynox M42
 to top
Raynox Rubimat 2.8 / 35 mm
n
-
Revuenon Revue (Quelle) M42
 to top
Auto Revuenon 2.8 / 28 mm
n
-
Auto Revuenon 2.8 / 35 mm
n
-
Revuenon Special 2.8 / 35 mm *
n
-
Auto Revuenon  1.9 / 50 mm *
n
-
Auto Revuetar 2.8 / 50 mm*
n
-
Auto Revuenon 1.4 / 55 mm #11246 Cosina made Tomioka Design Leather Focussing Grip
y
-
Revuenon MC 1.2 / 55 mm
(Cosina ?) (Pentax-PK mount)
needs slight modification
-
Rollei QB mount
 to top
Rollei F-Distagon 2.8 / 16 HFT *
y
n
Rollei Planar 1.4 / 50 HFT *
y
n
Rollei Planar 1.8 / 50 HFT *
y
n
Rolleinar 2.8 / 85 mm *
n
-
SigmaY/S - M42
 to top
Sigma widerama YS 3.5 / 18 mm
n
-
Schacht München Ulm 
Praktina mount + M42
 to top
Schacht Ulm 2.8 / 35 mm
Praktina mount *
y
n
Schacht Ulm S-Travelon-A 
1.8 / 50 mm M42 *
y filing may work
n
Schacht Ulm M-Travenar 2.8 / 50 (Makro)  M42 *
n
-
Schacht München 2.8 / 85 mm
Praktina mount *
n
-
Schneider Kreuznach
M42 and DKL mount
 to top
Schneider 2.8 / 35 mm
C-Curtagon* M42
n
-
Schneider 4 / 28 mm DKL mount, fit Retina*
y
n
Schneider 1.9 / 50 mm
DKL mount, fit Retina*
y
n
Schneider Edixa Xenar
2.8 / 50 mm M42*
y
n
Soligor M42
 to top
Soligor 3.5 / 17 mm (Tokina 1st version aka Asanuma)
n
-
Soligor 2.8 / 28 mm C/D (Tokina)
n
-
Soligor 2.8 / 35 mm wide-auto
n
-
Steinheil M42
  to top
Auto-Cassaron 2.8 / 50 mm
n
Quinon 1.9 / 55 mm
n filing away a tad of the back lenses ring works
 y
Tamron Adaptall II M42 
 to top
Tamron SP 3.5 / 17 mm
2nd version AA->M42->EF
n
-
Tamron Adaptall II 2.5 / 24 mm *
AA->OM->EF/AA>M42>EF+5DII
n
-
Tamron Adaptall II 2.5 / 28 mm*
n
-
Tamron Adaptall II 3.5 /  35-70 *
n
-
Tokina M42
 to top
Tokina RMC 2.8 / 28 mm
n
-
Tokina RMC 2 / 28 mm *
n
-
Tokina RMC 2.8 / 24 mm
n
-
Vivitar M42
 to top
Vivitar 2.5 / 28 mm preset
y
n
Vivitar 1.9 / 28 mm Auto*(5DMKII)
n
-
Vivitar 1.9 / 35 mm Auto
n
-
Vivitar 2.5 / 90 mm Macro*
n
-

Voigtländer DKL mount, fit Bessamatic 
 to top
Voigtlander 3.4 / 35 mm *
n
-
Voigtlander 2.8 / 50 mm *
n
-
Voigtlander 3.4 / 90 mm *
DKL mount
n
-
Voigtlander Dynarex 
4 / 135 mm * DKL mount
n
-
Voigtlander Zoomar 
2.8 / 36-82 mm *  DKL mount
n
-
Weltblick M42
 to top
Weltblick 2.8 / 35 mm Auto*
n
-
Yashinon Yashica M42
 to top
Yashinon DS 3.3 / 20 mm
n
-
Yashinon DS-M 2.8 / 24 mm *
n
-
Yashinon DS-M 2.8 / 28 mm *
n
-
Yashinon DS-M 2.8 / 35 mm *
n
-
Yashinon DX 1.4 / 50 mm
silver ring
y
n
Yashinon 5cm F 2.8 preset *
(5D MKII)
y
n
Yashinon DX 1.4 / 50 mm
black ring
y
n
Yashinon DX 1.7 / 50 mm
silver ring
y
n
Yashinon DX 2 / 50 mm silver ring
y
n
Yashinon DS 1.9 / 50 mm
n
-
Yashinon DS 2 / 50 mm
y
n
Yashinon DS 1.4 / 50 mm *
n
-
Yashinon DS-M 1.4 / 50 mm
n
-
Yashinon DS-M 1.7 / 50 mm
n
-
Yashinon DS-M 1.4 / 55 mm *
n
-
Auto Yashinon 1.2 / 55 mm *
y
n

Yashica
Contax Yashica mount C/Y
 to top
Yashica ML 2.8 / 15 mm fisheye 2
n
-
Yashica ML 2.8 / 20 mm *
n
-
Yashica ML 2.8 / 24 mm 2
n
-
Yashica ML 2.8 / 28 mm 2
n hits the mirror with Fotodiox Pro adapter...
-
Yashica ML 2.8 / 35 mm 2
n
-
Yashica ML C 1.9 / 50 mm 2
n
-
Yashica ML 1.7 / 50 mm 2
n
-
Yashica ML 2 / 50 mm 2
n
-
Yashica ML 1.4 / 50 mm 2
n
-
Yashica DSB 2 / 55 mm 2
n
-
Zenit Russian M42
 to top
Peleng 3.5 / 8 mm Fisheye
n
-
Zenitar 2.8 / 16 mm Fisheye
n (M42 adapter version)
-
Peleng 2.8 / 17 mm Fisheye *
n 
-
MIR 20 M
3.5 / 20 mm *
n Without the rear filter, everything works fine and nothing protrudes from the EOS adapter.
-
Mir-24M 2 / 35 mm (KMZ) *
n 
-
MIR 10A 3.5 / 28 mm *
n 
-
MIR 1A 2.8 / 37 mm M39 thread
(Zenit 3M)
y
n
MIR 1B 2.8 / 37 mm (Vologda)
y
n
Industar 61 L/Z 2.8 / 50 mm (LZOS)
n
-
Industar 50  3.5 / 50 mm Alu M39 (KMZ)
n
-
Industar 50-2  3.5 / 50 mm (KMZ)
n
-
Helios 44 2 / 58 mm M39 thread,
preset zebra
(MMZ, Zenit 3M kitlens)
y
-
Helios 44-2  2 / 58 mm preset black (Valdai)
y
y
trim about 1 mm of metal surrounding rearest lens
Helios 44-2 2 / 58 mm *
(Valdai) #81320118 on 5d mark II
n
-
Helios 44M 2 / 58 mm
(Valdai and KMZ version) auto
n
-
Helios 44M-2  2 / 58 mm
y
n
Helios 44M-3 2 / 58 mm MC (MMZ)
y
n
Helios 44M-4 2 / 58 mm (KMZ)
y 
n
Helios 44M-4 2 / 58 mm MC (Valdai)
y
n
Helios 44M-6 2 / 58 mm (KMZ)
n
-
Helios 44M-6 2 / 58 mm *
(Vologda, 49 mm front thread)
y
n
Helios 44M-6 2 / 58 mm *
(Valdai, 52 mm front thread)
y
n
Helios MC 77M-4  1.8 / 50 mm *
(Vologda)
n
-
Jupiter 9 2 / 85 mm
(non MC version)
n
-
Helios 40-2 1.5 / 85 mm *
(black version)
n
-
Zenit Russian Nikon Mount
 to top
Mir-24H 2 / 35 mm (Arsenal) *
n 
-
Arsat-H 2.8 / 20 mm *
n 
-
* = I don't own them.
Thanks to all users for their effort to keep this list growing...
back to main index (German)
 to top
  1. phototools24 black or red alu adapter 
  2. chinese brass adapter filed down to 1.4 mm
  3. readjusted infinity focus at Planar 50/1.7 and Distagon 28/2.8
  4. no-name black M42 alu adapter

Some links you may find useful:

Manual lenses with EOS cameras - at Photonotes

Logos and factories of Russian lens manufacturers at Alfred Klomps site

Rugift Russian cameras, lenses, adapters and other optics ( Jolos Ring )

Outstanding Japanese third party lens site, translated to English by Google

The international platform for manual lens users
(English + French language)  Manual Focus Forum

A Leitz and a Contax compatibility list with Canon DSLR at Pebbleplace.com

A multilingual forum for manual lens users: forum.mflenses (mainly in English/German). Provides a 5D Mark II lens compatibility chart.

DigiCamClub - a German forum providing a manual lens section

Manual lenses at Canon 5D:  Prime 35 (english language)
..and Manuelle-Objektive.de (German)

Last but not least - another lens compatibility list for Contax, Leica and Olympus lenses at 16:9.net and instructions how to shave the 5D mirror.

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