Tag Archives: nikon

Ultrawide Rectilinear or Fisheye lenses: to defish or not to defish

An ultrawide lens (anything below 24 mm in 35 mm equivalent format) can provide a sweeping view of an open landscape, but I also find it important for crowded forest and tree covered environments.

The widest rectilinear lens I own is an 11 mm lens by Irix and it is an excellent lens, but these pictures are made with other lenses. They are landscapes I made while testing an ultra wide 11 mm lens by Venus Optics on my Z7 alongside a 12 mm Samyang fisheye lens. I no longer own either lens but the photos I made that afternoon are good representatives of what can be done with these optics.

Pastures photo taken with a fisheye lens. Photo by Eduardo Libby
A fisheye lens allowed me to frame the pastures with he branches literally above my head. By keeping the horizon near the center of the frame, it remains straight on a fisheye lens image.

One thing I sometimes dislike about ultra wide rectilinear lenses is that elements in the corners of the image can look too stretched, like sucked into the frame. Because of this, I sometimes actually prefer using a fisheye lens: when used carefully, one can can hide the strong deformation we associate with their extreme projection. By keeping the horizon near the center of the frame, it remains straight on a fisheye lens image. In other cases, the image can be reprojected (defished as some people call it) to avoid the curved corners.

RReprojected fisheye photo of pastures. Photo by Eduardo Libby
Removing just enough of the fisheye distortion can provide a convincing ultra wide image without the light falloff that plagues rectilinear ultra wide angle lenses in the corners.
Pastures photo with an ultrawide angle lens. Photo by Eduardo Libby
A photo using the rectilinear Laowa 11 mm lens works fine and takes advantage of the stretching of the lower tree branch to give depth to the composition.

You can be the judge now and decide if this approach works as I really wanted to include nearby elements from a restricted point of view: I was literally shooting from a barbed-wire fence in all the photos I show here.

Have you tried using fisheye lenses for landscape photos?

Comparison of images made using the 11 mm rectilinear lens and a 12 mm fisheye. Photos by Eduardo Libby
Here are two images made from about the same viewpoint using the 11 mm rectilinear lens and the 12 mm fisheye. They are clearly not identical but both are very usable.
Do you like one better than the other?

Birds in flight: Olympus, Nikon and the swallows

As you frame the flying bird, put a focusing sensor on its eye, initiate tracking and compose your photo so there is space on the front… ‘Yeah right…. I shoot Swallows around here!’

Continue reading Birds in flight: Olympus, Nikon and the swallows

My Photo Exhibition in Costa Rica!

I have been honored to have a Black and White Photography Exhibition at the prestigious Calderón Guardia Museum in Costa Rica. Opening day on February 26 drew a large crowd of nice people and here are some snapshots from that night. Continue reading My Photo Exhibition in Costa Rica!

A happy family… with stacked teleconverters

In my post about nesting Least Grebes I said I would be showing photos of the distant birds taken with my 300mm lens and stacked 1.4X and 2.0X teleconverters. Here is a photo of one of the parents is about to feed a piece of crayfish to the chicks. Continue reading A happy family… with stacked teleconverters

Rainforest Birds in Flight Photography

Photographing rain forest birds is a completely different business than shooting water birds on a sunny beach where you get to easily picture birds in flight at high shutter speeds. Inside a dark forest, well… you easily reach the limits of current technology. Continue reading Rainforest Birds in Flight Photography

Sunny in the Cloud Forest

In spite of its name, the Monteverde Cloud Forest in Costa Rica has some days of very sunny weather which create difficult light for photography. Naturally they happen every time I happen to visit… Continue reading Sunny in the Cloud Forest

Nikon’s Z7 requires AF-Fine Tuning

The claims that on-sensor phase-detection autofocus sensors in Nikon’s Z7 does away with autofocus fine-tuning are wrong. I had to use AF Fine Tuning to get my lenses to focus properly. Continue reading Nikon’s Z7 requires AF-Fine Tuning

Bird photography with the Nikon Z7

There is a lot of talk on the Internet about the Nikon Z7 capabilities for wildlife photography, especially of birds in flight. I took out the Z7 for the kind of bird photos I normally do and I am very, very happy with the results. Continue reading Bird photography with the Nikon Z7