FD Resources - Zoom lenses
New FD 50-300mm f/4.5 L
This lens, introduced in mid of 1982 as the first super zoom with a high zoom ratio of 6X covers the frequently used focal length range from standard 50mm to telephoto 300mm. It is easy to operate and has a maximum aperture of f/4.5 which is quite fast for its class. The use of Canonís original 4-group zoom optical system and UD glass lens element featuring low dispersion and low index of refraction offers correction of aberrations and excellent definition in all ranges despite being a high magnification zoom lens with a focal length of 300mm.
A four-group design and appropriate power configuration allow a zoom ratio of 6, while the telephoto ratio is less than 1 at 300mm. Of the 16 elements in 13 groups, 2 elements are made of UD glass with low dispersion and low index of refraction.This effectively controls chromatic aberration and keeps the secondary spectrum to a minimum.
It also features excellent operability such a compact design reducing the overall length while adopting a 2-focusing ring system allowing focusing and zooming to be performed using separate rings. For those who seek simplicity, combined with optical performance capable of professional demands, the Canon FD 50-300mm combines many of the most popular focal lengths with an incredible 6-to-1 zoom ratio. There are two version within this category, you can either choose a high performance 'L' series model, which has Canon's low dispersion/low diffraction UD glass for two of the lens' elements for compensation for chromatic aberration and minimal secondary spectrum or you can select the 85-300mm f/4.5.
NOTE:- Info on the NEWER autofocus version
<< --- Cheering local heroes. The 1999 SEA Games in Brunei Darul Salam.
Oh.. the Official website of the Goverment of Bruinei was originally setup by MIR too.
Pix: © 1999, Vincent Thian, an AP photographer. (The Associated Press)
This lens combines the advantages of a normal, portrait, telephoto and long telephoto focal lengths, and comes with a reasonable speed for its zoom range. Although in films or on television, lenses with zoom ratios of 10 or more are used to create impressive zoom effects. But an increase in the zoom ratio means loss of brightness and a deterioration of image quality. Therefore, the zoom ratio is usually limit to 2 or 3 with ordinary still photography lenses. The lens featured here, however, boast an unusually high zoom ratio of 6x and was also the first of its kind to use internal focusing. The 50-300mm f4.5 L was Canon's eventual answer to frequent requests from professional photographers to demand a similar class of high performance zoom lens, although this lens has long been available in Nikon's Nikkor line-up, but Canon has all the while an 85-300mm f4.5 to answer that challenge. The FD 50-300mm f4.5 L lens was boosted with two UD glass to correct the secondary spectrum and thus achiveing high optical performance despite its high zoom ratio and with such a complex optical construction within.
The 50-300mm f5.6 L also comes with a special filter holder (Code Number CG0-2006) for using acetate and gelatin filters.
Focal length: 50-300 mm f4.5 L
Aperture ratio: 1:4.5
Lens construction: 13 groups, 16 elements (including 2 UD glass elements)
Coating: S. S. C. (super spectra coating)
Angles of vlew: Diagonal 46°- 8° 15, Vertical 27° - 4° 35' Horizontal 40.- 6° 50' Focusing mechanism: Rotation of front lens group
Zooming: Two-ring rotary type, mechanical compensation system
Mimmum aperture: f/32. A
Closest Focusing Distance: 2.5 m (8 ft.)
Filter type: Rear section filter holder, drop in type (with 34 mm exclusive filter Regular 1X)
Cap: S-95 (CA2-3144)
Filter Size: acetate or gelatin w/filter holder GH Regular-L (CG0-2006)
Lenshood: Lens Hood S-100 (C44-8111)
Case: Exclusive (C48-0101)
Coating: S.S.C. (Super Spectra)
Function: Auto Aperture, Full aperture metering (AE operation when used with ALL Canon automatic SLR cameras.
Length x max. diameter: 250 mm x 104 mm
Older Version: Three Early Canon FD Zoom Lenses - Canon Lens FD 35-70mm f/2.8-3.5 S.S.C.; Canon Lens FD 100-200mm f/5.6 S.C.; Canon Lens FD 85-300mm f/4.5 S.S.C. Click Here acquire more info.
Up to the mid of the seventies. General perception still has a lot of reservation towards optical performance of zoom lenses. There were only three during those early days of the FD mount and it mushroomed from there after 1977 when another hugely successful automatic multimode Canon A-1 was introduced after the immense success of the Canon AE-1 in 1975. Which one way or another have helped boosted traditional hardcore users' confidence towards ariival of 'new' things like automation and zoom lenses to the photographic world
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Site Maintainance Editors: Kaipin, Terry Carraway, Gerry, Winston, Tom & IRwin (Dr Strangelove); Credit: Richard Yeow, general manager of Canon Marketing for his continual support; Mr. Philip Chong, who volunteered to be a Maintainer of this site; Mr. Vincent Thian, an AP (Associated Press) photographer for contributing some of the great images appeared in this site; Mr CYLeow, photo-editor of The Star newspaper for some of his images used; my nephew EEWynFoo for helping so much of the tedious scanning works. And TO ALL THE CANON GURUS: Thank you for helping so much with the input of so much of invaluable information at the various Canon Message Boards. Site created 'unfortunately again with a PowerMac.