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Forum: Pentax K-1 & K-1 II
05-05-2016, 05:52 AM
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I had the F 35-70 in the film days and, even then, I didn't considered it very good. It was good at f8 at about 50mm, but quite average to poor at larger apertures and extereme focal lenghts. Although it could be fun to try on a K-1, I would expect disapointing results.
I also used a FA 28-105, 2nd version, which was significantly better than the F 35-70. This was my main lens for many years, even on the first generations of digital bodies. However, compared to modern lenses, it simply didn't cut it anymore on the newer bodies (16MP+). I get rid of it about two years ago when I came to the conclusion that this will not be a lens that make sense use on a FF digital camera. Again, nothing wrong to try it, but I don't see the point of paying a lot of money to get a hires FF body to use a subpar lens.
I'm quite sure that the new 28-105 is a way better choice than thse two lenses.
Although old prime lenses aren't that different from modern ones, zoom lenses have improved greatly in the last 10-20 years. I would expect most of the zooms from the 80-90 to be average, at best, relative to 2016 IQ standards.
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