HARTBLEI Tilt-Shift Lenses - Operation Instructions
These instructions are based on example of HARTBLEI 45mm perspective correction lenses. However Super-Rotator mechanism works in the same way for all HARTBLEI TS-PC lenses. All steps and methods shown further are identical to all HARTBLEI TS-PC lenses.
- Lens Mounting and Removal
- Focusing
- Aperture Setting
- Lens Shifting
- Finding the Exposure when Using Lens Shift
- Tilting the TS-PC Super-Rotator Lens
- Finding the Exposure when Using Tilt of the TS-PC Super-Rotator Lens
- Finding the Exposure when Using Tilt-and-Shift of the TS-PC Super-Rotator Lens
- Care and Storage
Lens Mounting and Removal
To mount and remove the lens, please follow the instructions in the user’s manual of the camera.
Focusing
To focus, rotate the focusing ring with the distance scale on it until the image is sharp in the viewfinder (it is preferable to do this with the aperture being maximum open).
The distance scale can be used instead to give an approximate focus
Determine the depth of field using the distance scale and the depth-of-field scale, and check it visually by the image on the focusing screen, in the viewfinder at the chosen aperture
When focusing the lens after it has been shifted, it is possible that the microprism and the split-image rangefinder of the viewfinder of the camera may darken. In that case, check the image sharpness on the matte spot of the focusing screen. Orientation based on a distance scale after the lens has been shifted shall not give precise result
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| MC PCS HARTBLEI 45mm / f=3.5 | MC TS-PC HARTBLEI 45mm / f=3.5 | MC TS-PC HARTBLEI 45mm / f=3.5 Super-Rotator |
Aperture Setting
To set the aperture, rotate the aperture ring with the scale number on it until the selected one matches with the red mark on the fixed ring.
Lens Shifting
To shift the optical unit of the lens, rotate the shifting ring with the shift scale on it.
Choose the direction of the shift by rotating the lens about the bayonet axis. To rotate the lens, push the shift direction release button on the shift mechanism. The lens can be turned around the bayonet axis 360° in any direction and may be fixed at each 15°. The lens may be used in positions between these intervals as well.
To shift the lens more than 10 mm the vignetting is used, a darkening toward the corner of the viewfinder shows i.e. the decrease of the intensity from the center to the edge of the frame. This may be avoided by using the 6x4.5 cm format of the frame (shifting the lens along the short sides of the frame) while photographing or choosing the aperture from 11 up to 22.
The values of shift, at which the vignetting is observed, are marked in red on the shift scale of the lens.
WARNING for users of Pentacon Six bayonet mount!
Due to the design characteristics of the TS-PC Super-Rotator lens with the Pentacon Six bayonet type, it is desirable to use the shift adjustment after the tilt value has been fixed.
In the TS-PC Super-Rotator lens with the Pentacon Six bayonet while the maximum tilt is set, the shift against the tilt direction shall not exceed 9 mm.
In order to prevent inaccurate operation, it is recommended that after each shot, return the parameters of the shift and tilt to the initial (zero) position.
Finding the Exposure when Using Lens Shift
When shifting the lens, it is necessary to introduce exposure adjustment of the external or handheld (not TTL system) exposure meter. The exposure adjustment increases from 0 to +0.5 of the aperture step that is proportional to the shift of the lenses optical system. So, at the shift of 6 mm adjustment makes +0.25 of the aperture step, at the shift of 12 mm adjustment makes +0.5.
Tilting the TS-PC Super-Rotator Lens
Lens tilt is achieved by rotating clockwise the tilt handle. One full revolution of the handle corresponds to a lens tilt of 1.5° for the TS-PC Super-Rotator lens.
The direction of the tilt for the TS-PC Super-Rotator lens is made by rotating the lens about the bayonet axis. To rotate the lens, depress the tilt direction release button on the tilt mechanism in the direction of the pointer. The lens can be turned around the bayonet axis 360° in any direction and fixed every 15°. The lens may operate in the position between these intervals as well.
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| MC TS-PC HARTBLEI 45mm / f=3.5 Super-Rotator |
If applying the tilt when photographing, obey the Scheimpflug’s principal, which states that if a lens is tilted such that the lens plane intersects the film plane, the plane of sharp focus must also pass through that same line of intersection (Scheme 2).
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Remember that when using the TS-PC Super-Rotator lens with Pentacon Six bayonet type it is recommended to set up the tilt angle with the zero position of the shift.
Finding the Exposure when Using Tilt of the TS-PC Super-Rotator Lens
With the lens tilt and the aperture open, there will be a difference in quantity of light entering the opposite edges of the frame. To correct it, choose the exposition pair "exposure / aperture" with the aperture closed down to 5.6 - 22. The use of a film with large exposure latitude is recommended. Exposure adjustment is not required.
Finding the Exposure when Using Tilt-and-Shift of the TS-PC Super-Rotator Lens
When tilting and shifting the lens simultaneously it is necessary to introduce exposure adjustment to the external or handheld exposure meter (not TTL system). The exposure adjustment increases from 0 to +0.5 of the aperture step that is proportional to the shift of the lenses optical system. So, at the shift of 6 mm, adjustment is +0.25 of the aperture step, at the shift of 12 mm adjustment is +0.5.
When using lens tilt and open aperture there will be a difference in the quantity of light falling on the opposite edges of the frame. The simultaneous shift of the optical unit magnifies the effect. To counter this use apertures 11 - 22. It is recommended to work with a film with large exposure latitude.
With 6° and more tilt and simultaneous 6 mm and more shift for 6x6 format vignetting occurs.
With 6° and more tilt and simultaneous 9 mm and more shift vignetting occurs in both 6x6 and 6x4.5 formats.
Care and Storage
The photographic lens is a complex optical instrument and requires special care and handling. Protect it from shocks, extreme temperature changes, as well as from dust and moisture. The photographic lens will operate in temperatures from -15° up to +45° Celsius.
When entering a warm room in winter, do not take the lens out of the case at once. Let it get warm to avoid moisture condensation on the lens surfaces. Keep the lens away from direct sunlight or other sources of heat.
When dust and moisture appear on the lens surface, remove it with a soft fabric (flannel, cambric, or suede). When dust appears on the surface of the lens, blow it off with a “rubber pear”. Do not blow dust off with your breath, or spray.
When fingerprints and other spots appear on the surface of the lens, first remove the dust from the lens and casing around. Then, using a special rice paper, natural cambric or new non-colored suede (a special suede for cleaning optics), wipe the lens with circular motions (from center of a lens in a spiral to edges) applying no pressure. In some cases, apply some cleaning fluid if necessary. For this purpose, use a special fluid for photographic optics, medical spirit, or ether. Take care that the fluid does not get between the lens and its housing (to avoid this do not use spray fluids under pressure). Residue from the cleaning fluid should be removed with new and unused suede or microfibre lens cleaning cloth.
The photographic lens you have purchased may have minor alterations on their cover that will be different from the one you find on the figure in the instruction. This is due to the processes in the manufacture of the lenses, the shape and operational qualities that are regularly updated.
