The is the third in a series of posts about the Voigtlander 65 mm f/2 Apo-Lanthar macro lens. The series starts here. The Voigtlander 65 mm f/2 Apo-Lanthar performs so well at distance that it’s natural to think of using it for portraits or in other situations where the bokeh is important. There are two pieces… [Read More]
Archives for September 2017
65/2 Apo-Lanthar, 60/2.8 AF Micro Nikkor
The is the second in a series of posts about the Voigtlander 65 mm f/2 Apo-Lanthar macro lens. The series starts here. I’ve received a request to test the new Voigtlander macro against another macro lens of similar focal length. The only candidate that I have lying around is the 60 mm f/2.8 AF Micro-Nikkor,… [Read More]
Voigtlander 65/2 Apo Lanthar LoCA & focus shift
This is the first in a series of tests of the new Voigtlander macro lens. To see all the tests, scroll to the bottom of this pace — below the comments — and click on the ping-back links whose titles interest you. I received my Voigtlander 65 mm f/2 Apo-Lanthar yesterday and tested it off-axis… [Read More]
Detectability of visual signals below the noise
I saw this pronouncement on DPR today: The smallest signal we can distinguish from the noise floor is equal to the noise. Signal to noise ratio (SNR) = 1. You see people saying that, or things very much like that, all the time. In some circles, it’s conventional wisdom. There’s only one problem: it isn’t even… [Read More]
Arca Swiss P0 Hybrid head
I’m a big fan of the Arca Swiss C1 Cube. I don’t particularly like their D4 geared head, though. After using the C1 for a while, I find ball heads imprecise and unpleasant to use. However, the C1 can take a while to set up. I tried a combination ball and geared head a few… [Read More]