Category Archives: Technical

Technical stuff on panorama shooting and on photography in general.

Mounting the Walimex 8mm Fish Eye with the Novoflex ASTAT-NEX

The Novoflex ASTAT-NEX is usually used to mount any of the different Novoflex adapters to a tripod. However the diameter of the ring fits the Walimex 8mm perfectly. The following images illustrate the mounting with the Sony ILCE-7. I only…
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Comparing a Mercator projection with a Cube Face projection

This article compares two different reprojections of the same panorama. The first is a classical Mercator reprojection, the second one is a Cube Face reprojection.


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Barnafoss Bridge Downstream (Making Of)

Recently I got a question about this panorama I published on Maps Views: Hi Markus, nice shot, but what happen with the focus, the right of the river is blurred? Here I try to explain the problem. In short: I’ve…
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Comparing image crops of Sony LA-EA2 and Sony LA-EA4 on Sony ILCE-7 (with Sony SAL70200G @ 200mm)

Today I did some tests with the two lens adapters Sony LA-EA2 and Sony LA-EA4, which can be used to adapt a lens with a Sony A-mount to a camera with an Sony E-mount.
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Images of shaved Samyang (Bower, Rokinon, Walimex) 8mm fisheye lens attached to Sony A7 (ILCE-7)

In the last article I showed the resulting images on the sensor at the different stages of shaving the Samyang (Bower, Rokinon, Walimex) 8mm/2.8 UMC fisheye lens. The following picture shows one side of the box of the Walimex version…
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Shaving the lens hood of the Samyang (Bower, Rokinon, Walimex) 8mm fisheye lens for usage on the Sony E-mount with full-frame sensors

The Samyang 8mm/2.8 UMC fisheye lens is available for several camera mounts (Canon M, Fujifilm X, Samsung NX and Sony E). It is designed as a full frame fisheye which covers 180° from corner to corner on these aforementioned mounts…
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Voigtländer Super Wide Heliar 15mm/4.5 attached to Sony A7 (ILCE-7) via Novoflex NEX/LEM

In a recent article I described, why the E-mount of the Sony ILCE-7 is so interesting for people with legacy lenses and how to configure your Sony ILCE-7 to assist when taking pictures with these lenses. In another article I…
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Voigtländer Ultra Wide Heliar 12mm/5.6 attached to Sony A7 (ILCE-7) via Novoflex NEX/LEM

The lens mount of the Sony NEX camera system is called E-mount. The E stands for Eighteen, as the flange focal distance of the Sony NEX camera series is exactly eighteen millimeters. Most interchangeable lens systems use a longer flange…
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Comparing Sony LA-EA2 and Sony LA-EA4

Today I received my Sony adapter LA-EA4 and did a quick comparison with the older version LA-EA2. Both adapters add a translucent mirror to a NEX series camera and are built for the Alpha lens lineup. But the newer version…
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Cornerfix profiles for Leica Summicron-M 35mm/2 (Asph.) on Sony NEX-7

In a previous article I already described how to post-process images which were taken with ultra wide legacy lenses on a Sony NEX in order to eliminate the magenta cast in the corners. I use the free software cornerfix (which…
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