by Karen Nakamura
Other Classic Camera Lens Mounts
Contax / Nikon RF Bayonet Mount
Leica Mount (M39/M)
Pentax Screw Mount (M42)
Overview and Personal Comments
The Canon R lens mount was introduced with the Canonflex in May of 1959. It was a breechlock (or spigot-mount) lens unlike most other mounts, which are either bayonet mount or screw mount. The advantage of breechlock-mount is that the lens-body mating surfaces do not slide against each other when mounting. This means that lens-body mounting wear can never degrade the optical performance (in reality, though this is a neglible issue since most uers don't change lenses often enough to wear these surfaces). The disadvantage is that the breechlock is "fussy" - it's hard to quickly mount an FL/FD lens in a rush without practice.
The R mount was revised in 1964 into the FL mount with the Canon FX. A new type of aperture-linkage was added. This allowed for TTL metering and opened up the diaphragm to full-aperture after the photograph was taken. Using the text or images on this website without permission on an ebay auction or any other site is a violation of federal law.
The FD mount was introduced in 1971 with the introduction of the Canon F-1 and FTb. The lens mount allowed for fully-coupled auto-exposure metering.
Around 1973, Canon started a new multi-coating process called SSC or Super-Spectra Coating. Lenses starting around 1971 were marked with SSC on the lens barrel.
The "New FD" mount was introduced in 1976 with the Canon AE-1. I am not sure what changed, although the lenses mostly moved to plastic bodies rather than metal bodies. Since almost all lenses were being multi-coated, many of the new FD lenses are not marked SSC anymore.
From: Matt Brown On your page on "Canon R/FD/FL Breechlock Mount Lenses" you state, "The 'New FD' mount was introduced in 1976 with the Canon AE-1. I am not sure what changed." The fundamental change was that New FD lenses pretend to be bayonet-mount. Instead of turning a locking ring on the lens (the silver ring at the base) you now turn the whole lens barrel, just like I imagine Canon did this because they found that photographers liked the mounting method of everyone else's lenses more than Canon's. That the bayonet mount was better, despite Canon's defense of the breechlock mount, is proven by Canon changing to bayonet for EOS in '87. Thanks, -Matt (posted with permission from Matt, thanks! - KN) |
Specifications Even the Canon EOS series cannot accept FD lenses easily because their flangeback distance is greater. Either you have to give up infinity focus or you have to use an adaptor with a negative lens element in it, which reduces optical quality as well as compatibility with the entire FD line. This annoyed many FD photographers greatly when migrating to the EF/EOS system (and gave Nikon users something to chortle about). |
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Technical Details-Wide Angle Lenses
|
Lens
|
24mm f/2.8 Canon FD SSC |
|
|---|---|---|
|
Manufacturer
|
Canon | Canon |
|
Serial #
|
12130x | |
|
Place
of Manufacture
|
Japan | Japan |
|
Date
of Manufacture
|
1973.3~??? | ???? |
|
Lens Construction
|
9 elements in 8 groups | ? |
|
Lens
Mount
|
Canon FD Mount |
|
|
Focusing range
|
0.3 meter - infinity Right focusing (infinity at right) |
|
|
Apertures
|
f/2.8 ~ f/16
(1 stop steps) |
|
|
Filter
Mount
|
Filter: 55mm. threaded |
Filter:
49mm threaded |
|
Dimensions
and weight
|
330g 66mm x 52.5mm |
|
| Note: Using the text or images on this site in an ebay auction without permission is a violation of your ebay Terms of Service. I will report you to ebay if I discover such a violation taking place. This may result in your account being cancelled. I also reserve the right to file claim for civil penalties. | ||
Technical Details-Standard Lenses
|
Lens |
50mm f/1.4 Canon FD | 50mm f/1.8 Canon FD | 50mm f/1.8 Canon FD |
|---|---|---|---|
|
Manufacturer |
Canon | Canon | Canon |
|
Place
of Manufacture |
Japan | Japan | Japan |
|
Date
of Manufacture |
1971.3 | 1971.3 Model I |
1979.6 |
|
Lens Construction |
7 elements in 6 groups (Modified Gauss / Planar Type) | 6 elements in 4 groups | 6 elements in 4 groups |
|
Lens
Mount |
Canon FD Mount |
Canon New FD Mount | |
|
Focusing range |
0.45m - infinity 46° angle of view (AOV) |
0.6m - infinity 46° angle of view (AOV) |
0.6m - infinity 46° angle of view (AOV) |
|
Apertures |
f/1.4
~ f/16 (0.5 stop steps) |
f/1.8
~ f/16 (1 stop steps) |
f/1.8 ~ f/16 (1 stop steps) |
|
Filter
Mount |
55mm ø |
55mm ø |
52mm ø |
|
Dimensions
and weight |
66mm D x 49mm H 370g |
66mm D x 44.5mm H 305g |
63mm D x 35mm H 170g |
|
Retail
price |
¥ | ¥14,800 |
¥22,000 |
| Note: Using the text or images on this site in an ebay auction without permission is a violation of your ebay Terms of Service. I will report you to ebay if I discover such a violation taking place. This may result in your account being cancelled. I also reserve the right to file claim for civil penalties. | |||
Technical Details-Telephoto Lenses
|
Lens |
85-205mm f/3.8 Tele-Zoom Auto Vivitar | |
|---|---|---|
|
Manufacturer |
Vivitar | |
|
Serial # |
2230401x | |
|
Place
of Manufacture |
Japan | |
|
Date
of Manufacture |
???? | ???? |
|
Lens Construction |
4 elements in ?? groups |
? |
|
Lens
Mount |
Canon FD mount |
|
|
Focusing range |
2 meter - infinity Right focusing (infinity at right) |
|
|
Apertures |
f/3.8 ~ f/22 (1 stop steps) |
|
|
Filter
Mount |
Filter:
49mm threaded |
Filter:
xxmm threaded |
|
Dimensions
and weight |
343g |
|
| Note: Using the text or images on this site in an ebay auction without permission is a violation of your ebay Terms of Service. I will report you to ebay if I discover such a violation taking place. This may result in your account being cancelled. I also reserve the right to file claim for civil penalties. | ||
On the Net
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