Eric J Kosinski
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I really like these lenses, they are not much bigger than a wide prime! At 17mm it is nice and wide and obviously up 50mm is very useful.
I did some testing of the vignetting.
I usually shoot 5k 2.4:1 (because it goes to 120fps) and the 17-50 covers all of the 5k as long a focus is farther than 2.5 feet. Closer focus than 2.5 feet at 17mm vignettes. the 16:9 crop is good at all focus.
Here are some quick iPhone pix of one of my lenses.
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Prost,
Rich
What's up with the front internal element housing? This looks like a rehoused lens inside a larger body lens frame as it looks as if there is plastic (or maybe metal) flange to put a smaller clip on lens hood on the extended part? Are these internally rehoused still glass ,possibly TOKINA, Tamron, etc??