How to use the shifting lens?

How to use the shift lens, photography is very popular among many of us, and photography has many skills that we need to explore ourselves. Generally, we have a lot of photographic lenses, so how to use shift lenses? Presumably many people don't know, let's take a look.

How to use shift lens 1 1? Because you want to use an axis-shifting lens, you must install the lens first. After the axis shifting lens is firmly installed on the fuselage, it is necessary to confirm that the offset and tilt functions are the default settings. In addition, when holding the lens, the tilt angle and offset position should be restored.

After the lens is installed, try to use a tripod when taking pictures. Because you need to adjust the direction and angle when using this lens, the effect and operability of having a tripod are completely different.

3. In order to grasp the shape of the subject more closely when shooting, you can select "Grid Line Display" from the real-time setting menu. Set grid lines to facilitate users to accurately control the viewing range. Especially when using a shift lens, this setting will make your shooting more controllable.

4. Adjust the shape of the subject by shifting, and adjust the shape of the subject by manually focusing and shifting. In the shooting process, try to keep the horizontal position relationship between the lens and the subject, and at the same time compensate the shape of the subject.

5. Control the focal plane by adjusting the tilt angle.

Adjust the shape of the object before the tilt operation. In the case of small depth of field, in order to focus the subject as a whole, you can imagine a focal plane. The key to setting this imaginary focal plane is to make the required depth of field as small as possible. In this way, even if the aperture value is small, it is easier to focus on the whole subject. The inclination angle can also effectively prevent the resolution from decreasing due to diffraction caused by too small aperture shrinkage. The picture shows the depth of field and virtual focal plane considered when shooting.

How to use shift lens 2? The camera is shooting at the building. At this time, the lens angle may be insufficient, and it is necessary to change a lens with a wider angle. For a 35mm camera, the equivalent method is to shoot directly at the target with a lens with the same focal length but a larger viewing angle, and move the film to the reserved position when cutting (actually, the lens translates in the opposite direction).

The shift lens is standing on the ground when shooting the building. In order to take a complete picture, the camera should be tilted slightly upward. Because the lower part of the building is close to the upper part and far from the upper part, the convergence effect of "the lower part is big and the upper part is small" will be adopted. The lens itself is not deformed, and the reason for this phenomenon is the perspective relationship.

A lens that moves the optical axis to adjust the viewing angle. The function of the shift lens is not only to correct the perspective deformation, but also to adjust the focal plane position. In general, the focal plane of the camera is parallel to the film plane, and the scene in the focal plane is clear and the Jiao Wai is blurred when shooting with large aperture; If the focal plane is adjusted by moving the axis lens, the sharpness can be changed. Obviously, shifting lens is most suitable for architecture, landscape and commercial photography. EF shift lens has no AF function.

This kind of lens is designed to be movable because it has a special device that can be moved or tilted, and its focal length is generally 28mm or 35 mm At first, it was a common shooting technique on large-format cameras, called shifting axis photography.

How to use 3 1 for shift lens? Make sure that the fuselage and tripod are horizontal and vertical.

Generally speaking, it is necessary to ensure that the fuselage is horizontal and vertical, and try to ensure horizontal perspective. Only in this way can the perspective works be close to people's eyes after later splicing. Like landscape shooting, when shooting, we need visual guide lines and horizontal lines to make a clever composition and bring a deep composition. At the same time, adding interesting points to the composition will make the photo more interesting, and the interesting points should be arranged on the four points of the composite photo as far as possible.

In addition to keeping the fuselage horizontal, the most important thing is to ensure that the fuselage pitch is parallel and the tripod is also in a horizontal state.

Shoot by hand

Because panoramic shooting with shifting lens is multiple shooting. A tripod is an essential thing to ensure the stability of the camera position.

At the same time, it also requires us to use manual stop shooting and fix the aperture shutter to present a consistent light and shadow effect.

Novices can use the automatic gear to measure light at 18% gray level, then write down the exposure parameters and input them manually.

3. Make sure the pictures are connected.

The connection between the two pictures requires us to pay more attention when shooting. We not only need to test the degree of offset as accurately as possible, but also need to determine the focus position to ensure the visual unity of the picture.

Shift-axis lens is more suitable for taking panoramic photos in close range and narrow space.

If the perspective in the picture is too obvious, we need to use a small aperture to get a large depth of field.

4. Use software splicing

After shooting, we can splice in the original software provided by the camera manufacturer, or we can use Photoshop's Photomerge function for automatic splicing. In the past, there may be some small differences in the photos spliced by these two softwares, but now they no longer exist, and even PS is better.

The software has detailed steps and is easy to operate, so I won't say much here. Only two points are suggested: 1. Splicing in RAW format; 2. Just use the automatic settings of Photomerge.

If the picture is not carefully cut when shooting, we can check "vignetting removal"; If you want to get a larger panoramic photo, remember to check "Fill the transparent area with content recognition".

Step 5 shoot more and try more

The panoramic photos taken by the shift-axis lens rely on its own huge imaging circle, which is more suitable for expressing the broad environmental atmosphere. Only in the face of a broader environment, how to express and how to set interest points are what we need to explore. Only by taking more photos can the success rate of panoramic photos be improved; Only by trying more can we find the essence of panoramic photos with shifting lenses.