What are decentrable lenses used for in architectural photography?

Tilt-shift lenses (also known as T/S lenses) have the ability to tilt and shift the lens independently, allowing them to correct perspective distortions and fine-tune depth of field.

for a indoor photographer a T/S lens can be useful for adjusting perspective and depth of field in spaces with severe perspective distortion, such as large halls or buildings with large windows. They can also be useful for creating images with a very shallow depth of field and focusing the viewer’s attention on a single area of ​​the image.

A few things to keep in mind when using a T/S lens for interior photography:

• T/S lenses tend to have a fairly short minimum focusing distance, so they can be useful for taking detailed shots or getting a great depth of field in small spaces.
• It is important to be careful when using lens shift, as this can affect the perspective distortion of the image.
• You may need to use a tripod for best results, as T/S lenses tend to have a fairly small maximum aperture.

In theory, vertical correction in Photoshop should give the same result as using a decenterable lens when capturing the image. However, there are a few things to consider:

• Vertical correction in Photoshop can introduce some loss of image quality, since the image is being digitally manipulated.
• If the image was captured with a decenterable lens, it may already be correctly aligned and no post-processing adjustment is necessary.
• Vertical correction in Photoshop can be slower and require more time and effort than simply adjusting the skew lens during image capture.

In general, if possible, it is best to use a decenterable lens to get correctly aligned images at the time of capture. However, if you don’t have a decenterable lens, or if you captured the image with a lens that doesn’t have this option, then vertical correction in Photoshop can be a good option to fix any misalignment in the image’s vertical lines.

A tilt-shift lens is a type of lens that allows the lens to be tilted and shifted independently, which can be useful for correcting perspective distortion and fine-tuning depth of field. Some advantages of using a tilt-shift lens for a real estate photographer are:

• Allows you to fine tune the perspective. By tilting and shifting the lens, you can correct perspective distortion and make vertical lines appear straight in the image. This can be especially useful in buildings with large windows or in spaces with a very accentuated perspective distortion.
• Allows precise control of depth of field. By tilting and shifting the lens, it is possible to precisely adjust the depth of field and focus the viewer’s attention on a single area of ​​the image.
• Allows you to take detailed photographs with a great depth of field. By using a short minimum focusing distance and finely adjusting the depth of field, it is possible to shoot detailed photos with a large depth of field and focus the viewer’s attention on a single area of ​​the image.

In summary, a decentrable or tilt-shift lens is a very useful tool for an architecture, interior or real estate photographer, since it provides several technical advantages, allowing photographs of higher technical quality and less post-production correction time.