Modern Classic SLR Series :
Canon EOS-1 series SLR camera

Additional information on Canon EF tele-zoom lens
EF 100~300mm f/5.6(
L); EF 100-300mm f/4.5~5.6 USM

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Part I Background and Lens Development History: -

Even when the zoom lenses of older days had not been very popular due to user's perception doubting in their quality aspect on image resolution, Canon had already began offering zoom lenses of different configuration way back to the FL-Mount days. Generally, tele-zoom were more easier to retain picture quality than wide-tele zooms. One of the earliest Canon tele-zoom lens was the 15 elements, 9 groups Canon FL-mount 85-300mm f/5.0 Zoom lens which was debuted back in 1965. The subsequent Canon Lens FD 85-300mm f/4.5 S.S.C., a lens revised with a FD outfit in 1974 during the original Canon F-1 era in a different 15 elements, 11 groups optical design, the main improvement was the closest focusing distance which has improved to just 2.5m from 4m; naturally, S.S.C., Canon multi-elements coating was used as compared to previous version. In addition to reducing the overall length of the lens and the closest focusing distance, emphasis has been placed on eliminating spherical aberration and coma aberration, providing high-contrast, high-resolution definition at all focal lengths. At 1,800g and 243.5mm body length; this zoom is huge but user's began to take notice of Canon tele-zoom quality.

SPLASH by Aaron Green (132k Jpeg) Loading ...
100-300mm- Zoom with a reach, convenience and flexibility for all round outdoor activities....

Credit: Credit: Image courtesy of Mr. Aeron Green® from UK, Aeron also has a PORTFOLIO at Treakearth. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

Canon FD 85-300mm f/4.5 S.S.C. zoom Side View Canon FD 85-300mm f/4.5 S.S.C. zoom front lens element

Credit: Image courtesy of camera$@EBAY®. He also operates a popular Ebay Store where he often lists many used RARE pieces of Nikkor, Leica and other old classic photo equipment, Images are also well taken for visual confirmation for buyers - he is also one of my favorite book marked Ebay dealer. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

Canon FDn 85-300mm f/4.5 zoom lens, Canon next upgrade in 1981 was essentially an direct upgrade but Canon has significantly improved it overall performance as well as in it portability (1,630g)

Canon FDN (new) 85-300mm f/45 Zoom lens front view Canon FDN (new) 85-300mm f/45 Zoom lens

Credit: Image courtesy of camera$@EBAY®. He also operates a popular Ebay Store. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

CANON FDn 50-300mmf/4.5L Zoom lens Loading ...
The first FD-mount standard to tele zoom with an L-label was a new FDn 50-300mm f/4.5L which saw its official debut in 1982. This 6X zoom ratio FD zoom lens ranging from standard 50mm to 300mm telephoto and has elevated Canon's FD lens group with a capable high performance zoom lens to take on the like of Nikon's professional grade Zoom-Nikkor 50-300mm f/4.5 ED.
The use of Canon's 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. 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. This lens weighs 1,800g and focuses down to 2.53m and has an all new optical design of a rather complex 16 elements, 13 groups which delivers a Maximum Magnification 0.144X.

Other than the FDn 50-300mm f/4.5L, Canon FDn 80-200mm f/4L, actually another quite popular tele zoom with a L-signature Canon FDn100-300mm f/5.6L (1985) which was updated from the non-L version of FDn 100-300mm f/5.6 in 1980. Both versions have different lens specification; optically, normal version: 14 elements, 9 groups; weighs 835g; measuring 207mm; L version: 15 elements, 10 groups; measuring 172mm and weighs only 710g. However, the normal 100/300mm close focuses down to 2m with a maximum magnification of 0.18X but the L series-zoom out performs it with a MACRO close-focus mode. NORMAL: 2 / MACRO: 1 Maximum Magnification:- NORMAL: 0.18X / MACRO: 03X. All these were made possible via a newly developed lightweight optical design with the second element is made of fluorite and the seventh element is made of UD glass to effectively correct the secondary spectrum prone to occur in the longer focal lengths in delivering high-contrast, sharp, well-defined images. The macro setting enables a closest focusing distance of 1 meter between the 200mm and 300mm focal lengths with maximum magnification of 0.3X. This high zoom-ratio telephoto lens enables professionals to enjoy high performance at an affordable price which incidentally also forms the basis for the next generation EF-mount lens development for the similar configuration as well as evolved into other immensely popular zoom range such as EF 75-300mm group; EF 90-300mm family and other high zoom ratio EF-Zoom lenses such as the Canon EF 100-400mm f/4.5-5.6L IS USM etc.

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Par II: There are three Canon EF zoom lenses that carry with a zoom range of 100-300mm. Both the normal and the L-series EF 100-300mm f/5.6(L) were among the early batch of Canon zoom that came with an all-new EF mount when the EOS system was introduced back in 1987. The different in sequential time factor between both AFD versions was just a few months: Normal (03.1987); L-version (06.1987). The normal 100/300mm AFD was replaced with an update USM-spec Canon EF 100-300mm f/4.5~5.6 USM in 1990 along with the very innovative Canon EOS-10QD. As at 05.2006, the USM 100/300mm zoom lens is still remained as a member of the current Canon EF lens group lineup.

Canon EF 100-300mm f/5.6 AFD zoom lens with lens hood ET-62 / ST-62
Canon EF 100-300mm f/5.6 AFD Tele-Zoom Lens

Marketed: 03.1987; Status:- Discontinued in 1990

Credit: Image courtesy of Gene Walls ® <ProfAudio>. Images copyright © 2006. All rights reserved.

Considering its 3X zoom ratio from 100-300mm, this reasonably compact tele-zoom ("compact" as compared to FD version of the 100-300 in its original 208mm length; the EF version measures only 166.8mm); this optically advanced (with a redesigned optical formula of 15 elements in 9 groups; this EF 100-300mm f/5.6 telephoto zoom lens features a built-in, full-range macro mechanism and a close focusing distance in macro range of 4.6 ft. (1.4m); there is a bright yellow macro line distance indicator inside the focusing window once you are in the MACRO mode. The three-group moving system contributes to the compactness of the lens. Using an Arc-Form Drive (AFD) motor for fast, quiet autofocusing and featuring Electromagnetic Diaphragm (EMD) control, this EF Electro, Focus lens has instantaneous communication with EOS camera bodies. As with the companion L-series of equivalent; both lenses use a single one-touch zoom control for fast and responsive zoom action. Since its primary focal length are telephoto, and when it relates to its primary applications, the lack of USM is its weakness. This original Canon EF zoom was once quite popular among the amateurs who seek for a good, high performance and yet affordable tele-zoom for their EOS cameras those days. For those who can afford a level higher in entry price, some serious amateurs would opt for the L-series equivalent. Canon patched the weakness of the lens handling, dim aperture as well as AF control in 1990 with the EF 100-300mm f/4.5~5.6 USM, which remains production until today (05.2006). However, as other new zoom lenses such as the 75-300mm class appeared, this zoom lens with its 100mm at its shortest focal length seemingly has a lesser appeal as an attraction to some Canon photographers.

Well, although downed but may not be entirely out of its usage, for those who may not be seeking for top performance; casually shoot for fun or family use or possibly strapped with budget for investment on a second lens, this can be of a good bargain. Some photographers preferred the brighter
Canon EF 100-200mm f/4.5A but I guess the latter has 2X ratio and came without manual focusing control would restrict its application at times. Lastly, most older EF lenses have an all metal rear lens mount, although this is not entirely a decisive factor but it comes as a small bonus possibly for enduring previous owner's frequent lens changing.. hehe.

Technical Specification for Canon EF 100-300mm f/5.6 AFD Telephoto-Zoom: -

Type: - Autofocus tele zoom lens type
Focal Length: Variable zoom range from 100mm- 300mm
Focus Adjustment:-
Autofocus type Manual Focusing:- possible via switch to MF
Zoom Adjustment:- One touch Ring controlled zoom action
Zoom range indications Marks: 100mm, 135mm, 200mm, 300mm
Closest Focusing Distance:-
macro - 4.6'(1.5m) normal - 7'(2m)
Maximum Magnification
:- 0.26X
AF Drive (motor) System:- AFD (Arc Form Drive)

Depth of Filed Scales: NOT provided
Functions; AF, AE operation, Auto Aperture, Full Aperture metering.
Canon EF 100-300mm f/5.6 AFD zoom lens
Credit: Images courtesy of Mr. Gene Walls® you can contact Gene via: <ProfAudio@EBAY> Image(s) copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

EF 100-300mm f/56 front view CANON EF 100-300mm f/56 Rear lens mount view
Infrared Marks: 100mm, 135mm, 180mm
Angle of View:- 20°'~6° 50'; 14°'~4° 35'°; 24°'~8°15' (H:V:D)
Aperture range:- f/5.6- f/32
Minimum Aperture: - f/32
Lens construction:-
15 elements in 9 groups
Lens Coating: Super Spectra
Filter rotation: yes
Filter Attachment Size
:- 58mm front mounting
Diaphragm: 8 blades
: Electromagnetic Diaphragm (EMD)
Function: AF, AE operation, Auto aperture, Full aperture metering AF Motor.
Extenders: Not advisable
Diameter:-
166.8mm (6-9/16)" x 72mm
Weight
:- 720g (approx. 25-3/8oz.)

Discontinued Canon Product icon
Accessories:- lens hood:- ST-62 or ET-62 usable, Lens Cap: E58; Hard case: LH-C21; Soft case ES-C20; 58mm; close-ups Lens 500D; Lens Dust Cap E Rear Cap, Gelatin Filter Holder Adapter usage: NO info.
Status:
Discontinued.

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Canon EF 100-300mm f/5.6L tele-zoom lens
Canon EF 100-300mm f/5.6L AFD Telephoto-Zoom

Marketed: 06.1987; Status:- Discontinued in 1998

Credit: Phoon photo, IPOH for lending me this lens for a few snaps..

Other than a very eye-catching redline at near the front section, this lens looked very identical to the previous zoom with normal configuration. It is not a USM lens and uses AFD as AF actuator. However, what separates it from the previous version was, it is a sophisticated professional zoom lens with a different configuration internally (but it was the same with the FD-mount 100-300mm L lens in its 15 elements in 10 groups design). To correct the residual chromatic aberrations (secondary spectrum) common in 300mm-class lenses, fluorite (an artificially crystallized form of calcium fluoride developed by Canon) and high-rcfraction/low-dispersion UD glass elements are used in the 1st and 3rd groups (2nd and 7th element). With its four-zoom groups design, its close focusing distance of 4.6 ft. (approx. 1.5 ft) in the macro range set at 300mm, the lens has excellent macro capability (maximum 0.26X, with Extension Tubes, it can increases the magnification further). This Electro Focus EF 100-300mm f/5.6L has a built-in, full range macro features and inner, rear three-group moving zoom systems to achive its compactness. Other features: use of 8-blades diaphragm for more natural out of focus blur. The lens has a very high quality feel and look - rigid in its construction. Metal rear lens mount (as usual for an oldie EF).

NOt being alone by Tapani Linnaluoto (164k Jpeg) Loading ...
Not Alone..a light moment beside the pond.

Credit: Credit: Image courtesy of Mr. Tapani Linnaluoto® from Helsinki, Finland where I have found this image from his PORTFOLIO at Pbase.com. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

EF 100-300mm f5.6L front lens element.jpg

EF100300mmf56LRear.jpg


As with all EF Electro Focus lenses, the lens is internally motorized for advanced communications with EOS bodies, including an Arc-Form Drive (AFD) motor for quite and quiet autofocus operation and Electromagnetic Diaphragm (EMD) operation. For those who may be seeking an affordable tele-zoom with high image resolution, this Canon old tele-zoom may fit every department of your needs, the lack of USM as well as its maximum aperture when working is less desirable lighting condition could be a small drawback but overall, if you can live with them, it can present a very logical consideration as an alternate tele-zoom if your lens system is comprised of basically standard lenses or entry level bundled zoom. The application of this tele zoom can be quite extensive in its usage, from outdoor activities, portraiture, travel and leisure photography, just name it. Personally, I think it can give other compact EF zoom like the 75-300mm a run of money.

Showcase A Showcase B Showcase C Showcase D
A love mini-showcase of the Canon EF 10-300 f/5.6L Credit: Images courtesy of camera$@EBAY®. He also operates a popular Ebay Store where he often lists many used RARE pieces of Nikon, Leica and other old classic photo equipment, Images are also well taken for visual confirmation for buyers - he is also one of my favorite bookmark Ebay dealer. Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

Technical Specification for Canon EF 100-300mm f/5.6L Telephoto-Zoom: -

Type: - Autofocus tele-zoom lens type with manual focusing mechanism
Focal Length: Variable zoom range from 100mm- 300mm
Focus Adjustment:-
Autofocus; AFD with front group rotating extension design, Dual range focusing range limiter at close focusing
Manual Focusing:- possible via AF/M switch; Full time Manual focusing during autofocus
NOT possible
Zoom Adjustment:-Single Ring control, via push/pull zoom ring control
Zoom range indications Marks: 100mm, 135mm, 200mm, 300mm
Lens construction:- 15 Elements in 10 Groups with One UD, One
Synthetic Fluorite glass elements (at 2nd, 7th (UD))
Closest Focusing Distance
:- 1.5m (4.6 ft) macro - 4.6'(1.5m) normal - 7' (2m)
Maximum Magnification:- Max. 0.26X at 300mm setting

Drive System:- AFD (Arc-Type Focusing Drive)
Distance Scales: Provided via window on metres/feet.
Angle of View:- 20°'~6° 50'; 14°'~4° 35'°; 24°'~8°15' (horizontal, vertical and diagonal)
Infrared Marks: 100mm, 135mm

Optic Construction of Canon EF 100-300mm f/5.6L


A lovely image by marcelo soule Italy  (68k Jpeg) Loading ...
Paris; France Seine riverL..

Credit: Image courtesy of Mr. Marcelo Soulé® from Itay, Image copyright © 2006. All rights reserved. Please respect the visual property of the contributing photographer.

Depth of Field Chart for Canon EF 100-300mm f/5.6L tele zoom lens

Macro Setting

Infrared Marks


Aperture range:- f/5.6 - f/32
Number of Diaphragm Blades: - 8 blades
Minimum Aperture: - f/32/38
* according to models
Filter rotation: yes
Filter Attachment Size:- 58mm front mounting
Extenders:
Not advisable
Others: - Extension Tube Extension Tube EF12(II): 0.32~0.04X; Extension Tube EF25 (II) 0.39X ~ 0.10X;

MTF graph for Canon EF 100-300mm f/5.6 L telephoto zoom lens

Canon EF 100-300mm f/5.6L tele Zoom lens fron section view
Diameter:- 166.6 x 75mm (3" x 6.6"); Weight:- 695g (1.5 Ibs)
Accessories:- lens hood:- ST-62 (old) or ET-62 II; Lens Cap E-58U (supplied ); lens hard case: LH-C21; soft case: ES-C20; 58mm close-ups Lens 500D; Lens Dust Cap E Rear Cap, Gelatin Filter Holder Adapter usage: (III, IV):- 5/4.

Discontinued Canon Product icon
Status: Discontinued



Relative: Manual Focus Canon FD mount Series Lenses Suggestive External Web Resources: A) A One-page Review by Photoethnography.com; B) Photozone Review with some fabulous pictures of accessories; C) HUlubei.net (wlcastleman.com)' review; Prices scan via i) Ebay ii) Let's Go Digital iii) Epinion

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