Canon FD 35mm f/2

The Canon FD 35mm f/2.0 lens was manufactured by Canon for the FD lens mount. It was sold in a number of variations over the years, and was the fastest Canon lens in the 35mm focal length before the debut of the EF 35mm f1.4.

Breech-Lock Mount (FD)

• Black Bayonet Mount, Concave Front Element, Min Aperture f/16^[1]
• Black Bayonet Mount, Concave Front Element, SSC Coating, Min Aperture f/16^[2]
• Chrome Bayonet Mount, Concave Front Element, SSC Coating, Min Aperture f/16^[3]
• Chrome Bayonet Mount, Convex Front Element, SSC Coating, Min Aperture f/22

Bayonet Mount (nFD)

With a 10-element, 8-group construction, the new FD 35mm f/2 was approximately 25 percent shorter and 29 percent lighter than the earlier FD design.

• Black, Convex Front Element, Standard New FD Coating, Min Aperture f/22^[4]

Thorium

The f/16 versions of the lens had some optical elements which contained the radioactive element Thorium creating concern that these radioactive elements may not be safe.^[5] The Thorium lenses were considered sharper side-to-side and at all apertures than any subsequent version. This seems to be as due to a superior optical design enabled by the inclusion of Thorium dioxide glass with enhanced refractive indices. The thoriated glass elements in this lens over time develop a yellow tint reducing transmission and interfering with neutral color reproduction.

External links

• http://www.lummukka.com/canonfd35.html
• FD Lenses - Canon Camera Museum
• New FD Lenses - Canon Camera Museum
• http://www.verybiglobo.com/which-35mm-lens-is-the-best-battle-of-35mm-lenses-on-sony-nex-7-part-i-bokeh/

References

1. "FD35mm f/2 (III)". Canon Camera Museum. Retrieved 2016-10-26.
2. "FD35mm f/2 S.S.C. (II)". Canon Camera Museum. Retrieved 2016-10-26.
3. "FD35mm f/2 (I)". Canon Camera Museum. Retrieved 2016-10-26.
4. "New FD35mm f/2". Canon Camera Museum. Retrieved 2016-10-26.
5. http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/35mm.htm