It’s not every day that I get to experience really terrible bokeh in the viewfinder.
Bokeh, as I have discussed before, and with which the internet is obsessed, is originally a Japanese word meaning “blur” or “haze,” is used to describe the quality (not the amount) of the out-of-focus portions of an image. About a grazillion factors influence bokeh, but the most significant is optical design of a lens.
Bokeh, like anything that falls into the hands of the soulless nitpickers and techno-fanboys of the internet, can become a pointless goal unto itself. The rest of us, who have a reason for taking pictures other than showing off our knowledge of specifications and resolution charts, keep bokeh in the toolbox of photography, and bring it out when we need it to help us express ourselves.
But back to the topic at hand: seeing bad bokeh right there in the viewfinder. I was shooting the final home game of the year for the softball team at the college last month with my broken Tamron 18-200mm f/3.5-6.3. I carry this lens as a lightweight second to my AF Nikkor 300mm f/4, with which I shoot the bulk of my action photos. At one point, I anticipated a play at first base, which was quite close to me, so I switched to the camera with the Tamron on it and focused on the first baseman…
The reason lenses like this tend to have the photography world’s worst bokeh is that they are designed to do it all: be light, small, easy to use, wide-angle , telephoto, and finally, and maybe most importantly, cheap. Lenses with better bokeh tend to be best at just that. Lenses like my AF-S Nikkor 85mm f/1.8, is not light or small or a versatile zoom or cheap, but lays down beautiful bokeh when used at close range with large apertures.
I have a buddy at work who sometimes uses the word “bokeh-y” to talk about some of my work. The term isn’t exactly correct; what he’s seeing is the use of selective focus with large-aperture lenses.
He’s toying with the idea of buying a AF-S Nikkor 50mm f/1.8, which wouldn’t be my first choice, but is cheap, and can deliver nice bokeh when using selective focus.
I have a another buddy, Scott Andersen, who just bought an AF-S Nikkor 50mm f/1.4, and he seems to love it, though I am seeing a slightly ratty bokeh in some of the images he posts. I would love to take a close look at his files one of these days and divine if I am seeing it correctly.