This post covers my current thoughts on off-site photographic backups. It should be understood in the context of this paper on backups in general. I should revise that page soon. There are two basic approaches to off-site backups. One is to do local backups to portable media, and regularly carry that to a safe place…. [Read More]

This is a continuation of a series of posts about bokeh and lenses that are designed to optimize it. The series starts here. In this post, we looked at the bokeh of the Zeiss 135 mm f/2 Apo-Sonnar ZF.2, the Nikon 135 mm f/2 DC-Nikkor, and the Sony 135 mm f/2.8 STF with parts of the… [Read More]

This is a continuation of a series of posts about bokeh and lenses that are designed to optimize it. The series starts here. We’ve seen that in the Zeiss 135 mm f/2 Apo-Sonnar ZF.2, and to a lesser extent in the Nikon 135 mm f/2 DC-Nikkor, that out of focus (OOF) point sources are rendered… [Read More]

This is a continuation of a series of posts about bokeh and lenses that are designed to optimize it. The series starts here. I set up one of my regular bokeh-evaluation scenes, and photographed it with the Nikon 135 mm f/2 DC-Nikkor and Sony 135mm T/4.5 (f/2.8) STF lens. I made images with the DC-Nikkor both… [Read More]

This is the first of a four-part series on lenses which attempt to control bokeh. If you want to easily navigate to the other parts, at the bottom of this post (below the comments) you’ll find pingback links to each of them.  Bokeh is a term, originally used in  Japan, that describes a camera/lens system’s… [Read More]