FD Resources - Wideangle Zoom lenses
TS 35mm f/2.8 Lens This was the world's first TS lens for 35mm format. The original lens was first introduced in March 1973, however, optically it has not been changed a lot. The tilt and shift lens is a special application lens, with an optically unique design, permits depth of field and perspective control. Although generally used for two purposes, tilt (depth of field) or shift (perspective), this lens' internal mechanism is designed to also perform the two functions simultaneously.
Useful resources/manual prepared by Christian Rollinger:
With angle of view the same as that of the conventional 35mm wide-angle lens, the TS 35mm lens has a fast maximum aperture of f/2.8. Equipped with Canon's Floating System, it maintains high quality images even at a close focusing distance of 0.3m from the subject. Disadvantages ? Manual preset for exposure control and nest, its 35mm angle of view may be still a little restrictive* for broad scope of applications.
* Compared with lenses of such type with competitions from Oylmpus (24mm shift lens, the Nikon has both 35mm and 28mm PC-Nikkors) Canon realized such limitation of available options when EOS system introduced and some new exciting TS lenses have been reintroduced and making Canon has the widest available options in any 35mm SLRs lenses (Will covered under the EF lenses section later).
< A side view of the Olympus 24mm shift lens.
Focal length: 35mm
Aperture ratio: 1:2.8
Construction: a groups, 9 elements
Coating: S.S.C. (super spectra coating)
Angles of view: Diagonal: 63° Vertical: 38° Horizontai: s4.
Distance scale: (m) 0.3 (magnification 0.19) to 3 ~ co (ft) 1 -10 Rotating knob with stopper
Shift range scale: Left - right sideways 11 mm (shift limit on scale), 0 - +7mm (white mark) +8 - 11 mm (red mark)
Range of tilt: 8° up and or down 0 - +30 (white mark) + 40 8° (red mark) - With lens rotation device set for shift-tilt (vertical/horizontal) movements
Minimum aperture: f/22
Filter size: 58mm
Length x max. aperture: 74 smm x 67mms
Focus adjustment: Tilt-shift structure
Normally, the relationship between lens and film plane remains constant. The axis of the lens and the film plane form a 90° angle. The TS 35mm is unique because it is designed to tilt or shift its axis in relation to the film plane. The angle of the lens' axis to the film plane can be changed to either control depth of field thereby increasing sharpness in the image or correct unnatural perspective. Both tilt and shift movements can be adjusted to work either vertically or horizontally by rotating the lens.
The four drawings below illustrate movements with the TS 35mm f/2.8 lens. Figure 1 shows the lens tilted up. It can also be tilted in the opposite direction. In Figure 2 the barrel has been rotated 90°, allowing the tilt to operate horizontally. Figure 3 illustrates the shift movement in the vertical position. Figure 4 shows the lens rotated 90° for horizontal shift movement.
The TS 35mm f/2.8 makes a tremendously important contribution to the versatility of the Canon 35mm system of photography. It enables the photographer to obtain results with a 35mm camera that normally require the use of a large format view camera with its swings and tilts. With the TS 35mm the photographer creates technically correct images of both studio and architectural subjects. Perspective and depth of field can be controlled to a much greater extent than is possible with conventional lenses.
Most 35mm lenses have an image circle just large enough to cover the 35mm film format - about 43mm. The TS 35mm has an image circle measuring 58mm which permits the lens to cover the entire image area even at maximum tilt or shift positions.
Correcting Perspective with the Tilt/Shift Lens
If you photograph architectural subjects with a conventional wideangle lens aimed up at the building, perspective in the photograph looks unnatural. Lines converge and the building appears to be leaning backwards because the subject and film plane are not parallel to each other. The TS lens provides a solution to the problem. Shifting the lens allows desired framing while keeping the film plane and subject parallel. This also eliminates unnecessary foreground in the process, improving overall composition. This shifting ability can also be used for photographing images in a mirror or window thereby excluding the photographer's reflection.
The tilt mechanism allows you to control overall image sharpness. Used in conjunction with aperture, the tilt feature of this lens gives you tremendous depth of field control. This is especially helpful when shooting an object at an oblique angle. For example, let's assume you want absolut~ sharpness in the foreground and background of a still life scene. First focus on the closest foreground object then tilt the lens until the background also comes into focus. You then make minor focus adjustments, close down the lens to the desired aperture and shoot. Using the tilting mechanism provides an additional means of controlling depth of field and thus allows greater freedom over the aperture and shutter speed combination.
Suppose you want to shoot a long building at an angle with all of it in the best possible focus. Due to the angle between the building and the film plane, foreground and background cannot be rendered sharp simultaneously. Here's where the Scheimpflug principle on which the solution is based comes into play. Imaginary lines must be drawn parallel to the front of the lens and the film plane and a third line from the subject. To attain maximum depth of field, the lens must be tilted so all the lines meet at a point in space. Tilting the lens brings the third line to the point of intersection, increasing the range of sharp focus.
Conversely, suppose you want to focus on only certain objects in the middle of a scene, throwing everything else out of focus. In this case focus and tilt the lens so that the subjects are all in the same plane and are parallel. This technique is especially helpful when photographing a product or still life, using the shallow depth of field to emphasize only the central subject. The TS lens could be portraying as a problem solver but it is also capable of taking the images that may challenge your creativity with its optical characteristic.
Older Version: Canon Lens TS 35mm f/2.8 S.S.C.
Introduced in March, 1973. As this lens is a preset lens and only can use stopped down metering, always take into consideration if auto exposure is reqired in your photography. Click Here to the dedicated pages for this special purpose lens.
Canon EOS SLRs | Canon EF lens Resources
If you have been thinking will be doing a great deal of photography with Perspective Control , the current Canon autofocus EF lenses may be even more appealing to your needs. There are at total of three lenses, the widest selection among all manufacturers of 35mm format. Started from TS-E 24mm f3.5 L which has an aspherical lens element on the front, a TS-E 35mm f2.8 and even came with a TS-E 90mm f2.8. All three feature a floating elements optical design. These few lenses will be featured in the Canon EF lenses section later.
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