I have to confess at the outset something unusual for a landscape photographer, I've never been much of a fan of ultra-wide lenses. In part this is because ultra-wide landscapes are difficult to compose, but mostly it's that I've never worked with a truly sharp lens below 24mm. I'm sure there are a few out there, just not ones that have...
As the sample images demonstrate, the Batis f2.8 18mm is remarkably sharp over most of the frame right from wide open. Only the corners suffer some softness. Note that the lower right corners of the mountainside shots are soft at wider apertures because of limited depth of field. The lens was focused on the distant mountainside and the lower right...
Enter the recently released Pentax K-1, the company's first full frame DSLR. The K-1 uses the older Sony 36MP full frame sensor, but to new effect. By exploiting the camera's in body image stabilization, Pentax has added pixel shift technology to the K-1. The technology essentially takes four consecutive exposures while moving the sensor one pixel width in a four directional grid. The four exposures are combined...
