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| p.1 #1 · p.1 #1 · Astro landscape images, wide angle corner lens distortions, options |
I have a pancake Voigtlander 20mm f3.5 lens that is great for travel and have been pleased with quite a bit. Lately I have been doing some long exposure start photos and I find that although quite good, at f3.5 the stars nearing the corners take on a cross shaped streak look. Kind of like a cross. Small amount of fringing as well. Otherwise I am very pleased. Anyone not critically examining the photo will care or notice, but if I were to print, I'd have to go in and fix it one by one. Not all stars are affected. It is worse the brighter the star, and the closer it is to the corners.
So, my question is others' experiences with star photos and wide angle.
Is the Canon 16-35 II much better in the corners at 2.8 and 3.5?
How about the Samyang 14mm 2.8? Certainly cheaper.
Will I see a significant difference with either of these or do I just need to stop down to 5.6 with what I have.