(Please tell me otherwise in the comments if that is the case) I know it's better to have a long distance so I can avoid tilting the camera and the optical axis, but that was what I could manage today, and I think this way to do it is OK. Then I centered the camera on the mast and took a shot for each aperture, and then turned each of the 4 corners to the same target by turning and tilting the head on my tripod. 680 meters or 740 Yards away so infinity focus should be reached by far. Initial testing was done under less than ideal conditions, but I can’t change the weather. Test chart is from Bob Atkins, and Siemens star from Nates Tech which has made them available for free. I also tested at shorter distance, close to minimum focus distance but with one chart, and a star in the center, also to make an initial centering test of the lens. I put a printed chart on a flat wall, one in each corner, and one in the center, and aligned the camera the best I could with a spirit level. The first outdoor test shots are available further down.

So because of that and the bad weather here, I have made some new tests with a test chart indoor.

Initial testing was done under less than ideal circumstances, with a not exactly precise method. I am mainly going to use this lens for landscape, what I call minimal photography, Architectural details, and some Portrait. The filter thread is precise and my filters fit very well in the thread.

I think it's very well built, and love the minimalistic design. The focusing ring is made of metal too and is an enjoy to use.

The Lens is build of Plastic with an outer metal barrel. It has the famous Zeiss T* coating, 9 circular aperture blades, and is rated dust/moisture resistant whatever that means since there is no rubber seal at the lens mount. The Lens comes with a solid Lenshood made from metal and plastic including the mounting bayonet.ĭimensions: 2.54 in.

Zeiss siemens star chart