Tag Archives: Leica Camera

Various Repair Manuals for Classic Cameras CLA

Here are the Instructions / Guides / Manual you may need on How to Repair / Restore / DIY / CLEAN, LUBRICATE, AND ADJUST


I am always passionate about film photography and classic film cameras, especially medium format twin lens reflex cameras. I have been self servicing and repairing my camera collection for quite a few years.


With a growing collection of cameras, over the years, I have also accumulated quite a big collection of camera repair guides and manuals. With these instructions, I managed to repair and service the majority of my cameras.


Majority of these materials were purchased either online or from camera repair shops. Its a big investment in time and effort.



Why spend hundreds of $ or even much more to get it serviced or repaired by camera shops?


Why not spend $9.99 and try it out by yourself first?


With proper tools and these manuals, you will sure be able to do it.


Camera Repair, Service CLA, and Restoration General Guide and Instructions:


US$9.99: Basic Training in Camera Repair


US$9.99: Camera Maintenance and Repair – Fundamental Techniques, A Comprehensive, Fully Illustrated Guide 


US$9.99: Camera Maintenance & Repair – Advanced Techniques 


US$9.99: Restoring Classic & Collectible Cameras 



Repair and Service Guide for Specific Cameras or Lenses




US$9.99: Canon 7 Camera Service and Repair Guide


US$9.99: Canon A-1 Repair Guide


US$9.99: Canon AE-1, AL-1 and AT-1 Camera Service and Repair Guide


US$9.99: Canon Dial 35 Repair Manual


US$9.99: Canon F-1 SLR Camera Service & Repair Guide


US$9.99: Canon FTb, TLB and EF SLR Camera Service & Repair Guide


US$9.99: Canon T50 / T70 / T70 Camera Service and Repair Guide


US$9.99: Canon Canonet G-III 17 Repair Manual


US$9.99: Canon VIT / VIL / P rangefinder camera Service/ Repair Manual





US$9.99: Contaflex I, II, III and IV Service and Repair Guide / Manual


US$9.99: Contax RX Camera Service and Repair Guide


US$9.99: Contax 139 Quartz Repair Manual





US$9.99: Hasselblad Accessories Service Manual


US$9.99: Hasselblad Carl Zeiss Lenses Service / Repair Manual


US$9.99: Hasselblad 201F 202FA Service Manual


US$9.99: Hasselblad 203FE / 205 FCC / 205 TCC Service Manual


US$9.99: Hasselblad 503cw / 501C / 503CX / 503CXi / 500CM / 501CM Service Manual


US$9.99: Hasselblad 555ELD / 553 ELX / 500ELX Service Manual


US$9.99: Hasselblad 903SWC Service Manual





US$9.99: Leica iiif service manual


US$9.99: Leica M2 Repair Training Manual




US$9.99: Mamiya C220 Professional TLR Camera


US$9.99: Minolta Autocord Cds III TLR Service/ Repair Manual


US$9.99: Mamiya RB67 Pro-S and RZ67 Service / Repair Manual / Guide




US$9.99: Minolta X-300 and X-700 Repair Manual


US$9.99: Minolta SRT 101 Repair Manual


US$9.99: Minolta XE / XG SLR Repair Manual Package




US$9.99: Nikon 35 Ti QD Repair Manual


US$9.99: Nikon F, F2, F3, F4, F5, F Finder and F3 Finder Repair Manual


US$9.99: Nikon F50 / F60 /F70 / F80 / F90 Repair Manual Package


US$9.99: Nikon FA / FE / FM SLR Repair Manual Package


US$9.99: Nikon D2Hs Repair Manual


US$9.99: Nikon D40, Nikon D50 and Nikon D200 Repair Manual


US$9.99: Nikon D700 DSLR Camera Service Manual


US$9.99: Nikon SB-800 Flash Service Manual


US$9.99: Nikon SB-900 Flash Service Repair Manual


US$9.99: Nikkormat EL / FTN SLR Repair Manual Package





US$9.99: Olympus XA Repair Service Manual with Exploded View


US$9.99: Olympus OM-1 Camera Service Repair Manual


US$9.99: Olympus OM-4 Camera Service Repair Manual


US$9.99: Olympus OM10 Repair / Service Manual / Guide





US$9.99: Pentax 195 / K1000/ MX/Spotmatic/ Me / MZ5 SLR Repair/Service Manual Package


US$9.99: Pentax 67 (6×7) Service / Repair Manual / Guide




US$9.99: Polaroid 100, 200 and 300 series automatic pack land camera Service Manual


US$9.99: Prontor Shutters




US$9.99: Ricoh-XR7-Repair-Manual


Rollei, Rolleiflex and Rolleicord


US$9.99: Rollei 35 Rangefinder Repair Manual


US$9.99: Rolleicord Va Repair Manual


US$9.99: Rolleicord Vb Repair Manual


US$9.99: Rolleiflex 2.8E Repair Manual


US$9.99: Rolleiflex 2.8F Repair Manual


US$9.99: Rolleiflex 3.5 (Including E2 and E3, Not including 2.5F) TLR Repair Manual


US$9.99: Rolleiflex 3.5F TLR Repair Manual


US$9.99: Rollei SL35 Repair Manual


US$9.99: Rolleiflex 44 TLR Repair Manual


US$9.99: Rolleiflex Tele and Wide TLR Repair Manual


US$9.99: Rollei Parts Repair Manual – Crank, Hood, Back, focus knob and front panel


US$9.99: Rollei Magic II TLR Service Manual





US$9.99: Yashica Electro 35 Service Repair Manual


US$9.99: Yashica Mat 124G Service and Repair Manual: Assembly Chart


US$9.99: Yashica FX3 and FX7 Repair Manual



Zenza Bronica


US$9.99: Zenza Bronica ETRSi Repair Manual

Mamiya TLR lenses

If you are interested in buying some rolleiflex cameras or accessories,

Visit: http://www.dzp-camera-cafe.com/

A great introduction of Mamiya TLR lenses



Having been in photography one way or another since 1946, I have been exposed to many types of cameras and lens systems. It never occurred to me to research the physics of the optical lens. I merely took everything for granted � if it worked, or just ignored it if there were problems.

Lately, my interest in lens design has been restored. I think this is due to the rapid development in digital everything including cameras and the Internet. Reading the internet news groups dedicated to photography, I saw a very real ignorance in lens design and theory which rivaled my own. So I decided to do some latter day research to attain some degree of knowledge of lenses, at least for those I use.

This paper is restricted to the lenses made by Sekor for the Mamiya twin lens reflex cameras. I have chosen these as my experience has shown them to be quite excellent for my style of photography (Portrait, landscape, and sill life � please, no nature, sports, or other subject which move rapidly). I do not presume to endorse these products, they are simply available for me to explore. In fact I own lens systems that produce superior results.

A Brief Review of the Mamiya Lens Inventory

The Mamiya lenses were available in the following focal lengths; 55, 65, 80, 105, 135, 180, and 280. Table 1 contains the characteristics of each lens.

Table 1:

Lens Composition Picture Minimum Filter (mm) Lens Hood (mm) Shortest
55mm f/4.5 9 elements 7 groups 70� 30′ f/22 46 48 9 1/2 in. 2-17/32″ x 2-17/32″
65mm f/4.5 6 elements 5 groups 63� f/32 49 50 10 11/16 in. 2-21/32″ x 2-21/32″
80mm f/2.8 5 elements 3 groups 50� 40′ f/32 46 46 1 ft, 1-15/16 in.
3-25/64″ x 3-25/64″
((8.6cm x 8.6cm)
105mm f/3.5 5 elements 3 groups 41� 20′ f/32 46 46 1 ft. 11in.
7-1/4″ x 7-1/4″
135mm f/4.5 4 elements 3 groups 33� f/45 46 46 2 ft 11-1/2 in.
7-1/4″ x 7-1/4″
180mm f/4.5 5 elements 3 groups 24� 30′ f/45 49 50 4 ft 2-3/4 in.
(1m 29cm)
10-53/64″ x 10-53/64″
250mm f/6.3 6 elements 4 groups 18� f/64 49 50 6 ft 8-3/4 in.
(2m 5cm)
1 ft 1/4″ x 1 ft.1/4″

55mm f/4.5

Mamiya Sekor 55mm lens
(photo courtesy of “B”)

Figure 1 Sekor 55mm f/4.5

Figure 2 Golden Navitar

The Sekor 55mm, figure 1, is by far the most sophisticated of the group. It is virtually unique, as it does not fall easily under an established design. It looks very much like Elgeet 揋olden Navitar� shown as reference in figure 2. The design of this lens is the reversed telephoto concept used to a great extent in wide-angle lenses. The differences are obvious in the two figures, the most significant one being the aspherical rear element in the Elgeet. Another is the position of the stop and the use of the thick, cemented magnifier in the Sekor.

65mm f/3.5

Mamiya 65mm
(Photo courtesy of Jim Greeley jimg@avana.net)

Figure 3 Sekor 65mm f/3.5

Figure 4 Angenieux 9.5mm f/2.2


The Sekor 65mm lens shown in figure 3 is also of the reversed telephoto design. It is almost a copy of the Angenieux Retrofocus 9.5mm f/2.2 shown in figure 4, developed for the 35mm cameras in 1950 France. As both lenses were produced about the same time, it is hard to say which was original. The Angenieux Company coined the term 揜etrofocus� which has become an almost generic term for this lens design today. It is one of the more elegant of the TLR group.

80mm f/2.8

Mamiya 80mm lens
(photo courtesy of “B”)

Figure 5 Sekor 80mm f/2.8

Figure 6 Elmarit 90mm f/2.8 for Leica


The next three lenses seem to belong to a group known as Modified Cook Triplets. In the 1930s, Max Berek of Leitz, designed several lenses for use in Leica cameras, based on the Cook Triplet. The Sekor 80mm, figure 5, is one of these. The similarity to the 揈lmarit�, shown in figure 6, is immediately evident. The 揈lmarit� is a relatively new design, dating from 1958. The Sekor 80mm is considered to be the 搉ormal� lens for the Mamiya 6×6 format and operates with excellent aberration correction and resolution. Mine seems to be a little subject to flare, which can easily be minimized by use of the proper hood.

105mm f/3.5

The Sekor 105, figure 7, is probably my favorite lens to work with in most situations be it landscapes or portraits. The element configuration is the same as the Leitz 揌ektor�, a Heliar type lens, shown in figure 8.

Figure 7 Sekor 105mm f/3.5

Figure 8 Leitz Hektor 28mm f/6.3

Hans Harting designed the Heliar in 1900 for Voigtlander as he tried to produce a symmetrical modification of the Cook Triplet. To improve the apparently poor performance of his original design, he later modified his original design with the cemented surfaces convex toward the stop. The modification shown in the Leitz design conforms to Harting抯 successful design. The Sekor design is a further modification.

135mm f/4

Mamiya 135mm f/4.5 lens
(photo courtesy of “B”)

Figure 9 Sekor 135mm f/4.5

Figure 10 Leitz “Elmar” 135mm f/4.5


Yes, the 135mm, figure 9, is a straightforward 揟essar� type similar to one of many 揈lmar� types used on Leica cameras since 1931. This has certainly been a most successful design and is being produced today in some configuration.

180mm f/4.5

Mamiya 180mm f/4.5
(Photo Courtesy of “B”)

Figure 11 Sekor 180mm f/4.5

Figure 12 Ernostar f/2 by Bertele


The 180mm Sekor, figure 11, is a unique design for which I have not found a good historically representative type. It is not a true telephoto lens but resembles the old 1920s Ernostars by Bertele. One of these, an f/2 from 1923 is shown in figure 12. But there are significant differences including: the cemented elements in the first group are reversed, the second element of the Ernostar is a cemented doublet, and the final element of the Sekor is a planar meniscus.

Bertele designed the Ernostars when working for the Ernemann Company. When the company was taken over by Zeiss Ikon, Bertele began work on an improved Ernostar design. Later still Bertele used the improved design as a basis for the famous Sonnars. So although the Sekor can trace a pedigree with the Sonnars, they have very little in common.

250mm f/6.3

250mm f/6.3 lens side view
(photo courtesy of “B”)

Two telephoto lenses from 1891. (a) Dallmeyer (b) Miehte

Sekor 250mm f/6.3


The Sekor 250mm, figure 13, is a typical two-group telephoto design. It follows no classic design that I have found. Telephoto lenses are characterized by having a positive magnifying front group and a negative group at the rear. Sekor抯 6-element lens has superior aberration correction and very little flare giving good contrast, resolution, and accuracy corner to corner with the Mamiya 6×6 format.


Most of the historical data presented in this paper was found in the following:

Rudolf Kingslake, 揂 History of the Photographic Lens�, Academic Press, Inc., San Diego, Ca. 1989