That wider aperture allows you to use a faster shutter speed (since there will be more light coming into the camera) and avoid the evils of diffraction. Tilt-shift lenses will allow you to achieve maximum depth of field with wider apertures. I sent it back and have never wanted one since. I had bigger fish to fry (composition, exposure, changing light conditions, etc.) And frankly, if I was that concerned about maximizing depth of field without using a small aperture, it is just as easy to focus stack as it is to mess with the tilt-shift.Īs a result, the tilt-shift lens spent the 2 nd half of the rental period in my camera bag. I discovered I really wasn’t that worried about maximizing depth of field with larger apertures. I like to move around and not spend a ton of time setting up one image. I didn’t want to spend a bunch of time fiddling with the angle settings. That’s when I discovered another problem with tilt-shift lenses. I rented a tilt-shift lens for the duration of those trips. At that time, I had back to back trips planned to Galveston, Texas and Acadia National Park in Maine. So I rented a tilt-shift lens for a few weeks. But then – aha! – I remembered that you can rent lenses! And, as it turns out, both LensRentals and BorrowLenses carry 24 mm tilt-shift lenses, which is exactly what I wanted. I was disappointed that I could not own one. I couldn’t shell out that kind of cash for this deal. And that is for a single focal length, since they do not zoom.īummer. That’s when I discovered the first problem with tilt-shift lenses. Other photographers raved at the sharpness and quality they got in their images. Who wouldn’t want one of these magical devices? I could shoot at my lens’s “sweet spot” all the time. When I first read about tilt-shift lenses a few years ago, I could not wait to go out and get one. You can use something like f/5.6 or f/8 (even wider apertures sometimes) and everything in the image will be sharp. Now your plane of focus includes the entire ground of your image. Make it match the angle of the ground in your image. The tilt-shift lens will have a scale on the side of it that allows you to set the angle of the tilt. And if you tilt the plane of focus so that it is at the same angle at the ground, then that means that the entire ground will be in focus – even when you use a larger aperture. But when you tilt the lens (as compared to the image sensor in your camera) then you tilt that plane of focus. It runs up and down and right and left throughout the field of view.
The further way something is from that point, the less in focus it will be. The closer something is to that point, the sharper and more in focus it will be. That has the effect of making everything at that distance from the camera sharp. Normally, when you focus on something, your camera is setting the focus on that point. How does a tilt-shift lens accomplish this little miracle of a wide depth of field with a large aperture? Many outdoor and landscape photographers have taken up their use because you can tilt the plane of focus, which allows you to keep everything sharp in the image while using a wider aperture. In that context, they correct distortions that cause buildings to look like they are collapsing toward the center of the image. These are specialty lenses used primarily in architecture photography. You can, if you use something called a tilt-shift lens.
Wouldn’t it be nice if you could use those aperture settings and still get a really wide depth of field? You also know that the “sweet spot” for most lenses is somewhere in the range of f/5.6 – 8.0. You understand, however, that shooting at very small apertures can negatively affect image quality because of diffraction. You want to maximize the depth of field of your images.
0 kommentar(er)
