![]() Aberrations: Visible towards the corners, but can be corrected in Lightroom.For my landscape photos, the 24mm setting is most important, so this lens is quite useless for me. Unfortunately, I can't give this lens a high rating for sharpness. So here are some 100% crops at different focal lengths: De-centering can't be the reason either because the left corner looks just as bad. There is a huge difference in sharpness between the bottom center and the corner. It looks like the corners could be out of focus at large apertures, but that was not the case, as this 50% crop (24mm, f/2.8) from the bottom right shows. This is the view which I used for my test images: The overall performance is best around the 50mm mark, but I didn't buy a heavy zoom lens to use it only at 50mm.At the long end, sharpness is much more even across the frame, but you have to stop down to f/11 to get a sharp image.At the short end, the resolution in the center is already usable at f/2.8, but the corners are very soft even stopped down.This lens is a bit of a disappointment in this regard. ![]() ![]() When I test a lens, the first question is always: Can it deliver sharp images across the frame? Aberrations can be corrected in Lightroom, soft corners cannot. So when it showed up on Ebay for around 100 €, I gave it a try. This lens has one, although it doesn't look like it on the product image on this page. Sharpness: 6 Aberrations: 8 Handling: 7 Value: 7 Camera Used: K-1 Autofocus: 8 New Or Used: UsedĪs I like to use my lenses with both film and full-frame digital cameras, I've been looking for a good standard zoom with an aperture ring. Corner sharpness on short end, overall sharpness on long end
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