Category Archives: Technical Test

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. Continue reading

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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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Comparing corrected and uncorrected images of CV12mm/5.6 on Sony NEX-7

I wondered about the impact of my corrections at the stage of post-processing the test-images from yesterdays article. To answer this question I picked the image taken with an aperture of f=8 and compare a uncorrected and a corrected version of the image. Continue reading

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Voigtländer Ultra Wide Heliar 12mm/5.6 (on Sony NEX-7) at different apertures

As I am aware of the fact, that any combination of lens and body has it’s maximum sharpness at a specific aperture I did a series of test images with different apertures to find the maximum sharpness of a Voigtländer Ultra Wide Heliar 12mm/5.6 on a Sony NEX-7. Continue reading

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