Jman13
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akul wrote:
Thank you for sharing your experience with it. That sounds frustrating. It sounds like you are done trying to replace 20 for another copy ? It is painful, and frustrating so I can relate. 14-28/2.8 for sure is a great lens, but I am getting spoiled with smaller / lighter good performing lens, so I probably won't go that way. 100-400 and 50/1.2 will be the two heavy lens I will keep in Z setup. In terms of 20's handling, it seems pretty long, was it ever get in the way in terms of putting in your pack, etc ? Weight balance is probably good and may feel better than the 21/1.4 hunk of metal.
Luka...Show more →
I purchased my 20mm f/1.8 used, so it's not really easy to try another copy. I've also owned it for about 45 days. Overall, even with this fault, the lens has generally been very good, as even shooting wide open in a lot of other situations indoors, I never really noticed anything off, so it's not horrible or anything...just doesn't make this copy great for astrophotography, unfortunately. I'll likely trade it in to the same place I bought it from when my 180-600 comes in.
Size wise, it's not a problem. The lens is fairly light weight despite the length, so it handles great. The only down side is that the lens hood for it is rather huge, so that's the limiting factor in bags, but the hood is only like 2mm wider than the 14-30 hood, so it's not a giant deal.
I did pick up the 14-24/2.8 today. It's really not that big of a lens. it's roughly the same size and weight as the 24-120, so it handles pretty well. It's only like 200g heavier than the 14-30. Optically, it's stellar - first blush it appears to pretty much obliterate my 14-30, which was a pretty decent lens in its own right. At 14mm and f/2.8, there's a bit of field curvature up close, so the edges curve away from the focus plane a bit. If you focus at the edges, the center is still pretty sharp, but the edges and even corners become very sharp right from f/2.8. Stopped down a stop or two, and that field curvature is irrelevant, and it's sharp corner to corner.
EDIT: I did some more testing, and yes, there is some field curvature at 14mm. However, it's a complete non-issue if you know about it. If you focus in the center, the camera seems to focus at the closest point that is in focus....so the edges go out of focus on flat field subjects at f/2.8. However, if you focus at the edges (or outer 20%), the center still falls completely within the depth of field at f/2.8, but it brings the corners into focus too...so even on flat field subjects, the lens is sharp corner to corner, even wide open. I went out shooting after work, and this lens is SERIOUSLY impressive.
Edited on Aug 30, 2023 at 04:17 PM · View previous versions
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