The Exakta Lens List contains only lenses for the Vest Pocket Exakta (Standard-Exakta) and with Exakta bayonet (original, RTL1000, Exakta66 pre- and postwar and Real).
This means that you won't find lenses with the name Exakta(r) but with other
mounts (M42, Pentax-K etc.), lenses for cameras with the name Exakta but without
an Exakta bayonet or lenses for the Exakta66 based on the Pentacon Six.
Short name of the lens factory (Zeiss, not Carl Zeiss Jena, CZJ or aus Jena),
brand name or importer name (mostly for Japanese lenses, sold in the USA, like
Type name of the lens. In some cases the factory or importer used the same
type name for all lenses.
NB1 In some cases is is unclear (at least to me) whether the name on the lens is a type name or a factory/brand name. For example, "Vivitar" is considered to be a brand name, but I don't think Vivitar is/was a factory.
NB2 For Zeiss lenses, the full lens names are used, not the indications T, B, S and Bm.
Focal length in millimeters. When a lens has a focal length in inches, the
nearest value is chosen (for sorting purposes) and the correct focal length is
given under Comments.
A zoom lens gets a focal length 0 (zero) and its range is given under Comments.
Largest possible aperture as written on the lens f:1-xxx. Lenses with two or
more aperture values (dual and multiple focus lenses, some zoom lenses) get a 0 (zero) value. The
correct values are given under Comments.
VP1 Vestpocket Exakta (Standard-Exakta) fine thread
VP2 Vestpocket Exakta coarse thread
Kine original Exakta bayonet on Kine, Varex and Exa
OB Outer Exakta bayonet, introduced in 1953
Real Large bayonet on Exakta Real and TwinTL/Carena
RTL Exakta bayonet + RTL diaphragm mechanism
KiRT Kine (internal and outer bayonet), RTL and Real; for lenses with interchangeable YS- and XQ-mount
Top Exakta bayonet + Topcon diaphragm mechanism
Mam Exakta Bayonet + Mamiya diaphragm mechanism on Tower/Sears/Reflexa
Plus Exakta bayonet + Plusflex/Firstflex diaphragm mechanism
66H Horizontal Exakta66 (prewar)
66V Vertical Exakta66 (postwar)
66B Exakta66 Both H and V, i.e. with dedicated adapter
MM Magic Mount (Enna); semi-automatic adapter (Wechselsockel)
AM Automatic Magic Mount (Enna); automatic adapter (Weckselsockel)
Diaphragm closing mechanism.
Man Manual. Continuous setting.
CS Click Stop
APS Automatic preset. Button on barrel; a few Schacht lenses only.
SA Semi-Automatic. Cocking; release button over camera release.
Aut Fully automatic (shutting gradually or suddenly)
--- No diaphragm
[nothing] no diaphragm or unknown
? Unknown diaphragm system
19xx Year of introduction (as far as we know)
-19xx Introduced in this year or earlier
+19xx Sold from this year
SM Short Mount for use on bellows
FM Fixed Mount
EM Exchangeable (=interchangeable) Mount unspecified
EMT4 Automatic mount
EMIC ISCO mount
EMIS Insta-Switch from Caspeco
EMKil Kilfitt mount
EMOB Outer bayonet mount e.g. from Tamron
EMSc Schneider mount, for PA-Curtagon only
EMTST nameless, found on Taika, Sun and Tokina
EMYS YS-system; many factories = XQ; adapters for Kine (internal & outer bay) RTL and Real
EM-Questar Probably = T2
EM Adaptamatic From Tamron
EM BS-system from Birns & Sawyer (never seen one)
NB No E/F/S/M indication in many cases probably means: I don't know about it.
ft m Where of interest: distance scale in feet or meters or both ft/m
fxx Smallest aperture (if necessary e.g. to keep subtypes apart)
xx,xcm Focal length on lens indicated in centimeters, not millimeters.
FTxx front thread size (if necessary e.g. to keep subtypes apart)
zm zoom reach e.g. zm80-210mm
dof ind depth-of-field indicator
chrome/brass chrome on brass barrel
focusring ring on lens for focusing
focring = focusring
diaring diapgragm ring
rocker release simple bending-down autorelease button, mostly on Meyer lenses
bayo bayonet ring
base part of barrel that fits into camera
° [degree sign] artefact of my computer system; no meaning
largechar large characters
smallchar small characters
leath = leatherette
Patterns on rings
wafered pattern of parellel rows and columns of little black rubber bumps
ridged alternate black and metal sectors = zebra
dimpled one row of relatively large elipsoid bumps; rubber (Berg und Tal)
milled many small parallel grooves (the "normal" old way)
leatherette attificial leather; irregular higher and lower parts
crossmilled? crisscrossed double set of narrow grooves (not yet used)
If you have additions or corrections to this Exakta Lens List,
please "prove your case" by sending/mailing:
- factory name
- type name
- focal length
- serial number
- type of aperture control (see legenda on the list)
- description of special features if appropriate
- one or more pictures.