John, you should look into the Samyang 14mm f2.8. It's available in K
mount, full frame and for what it is, very inexpensive. It's manual
focus, but at f5.6 setting focus at about 30 feet should give acceptable
in focus from about 5-6 feet to infinity. Even at f 2.8 you can get
acceptable focus from about 9 feet to infinity. Reviews are all very
complementary, comparing it to the Zeise MF lenses as far as image
quality. Build, is another story, but they're not horrible. The only
real disadvantage compared to the Pentax DA 15 I can see is size. They
look to be about the same size as, or maybe marginally smaller than the
A 15mm f3.5.
On 12/25/2016 6:18 PM, John wrote:
Anyone try this on a K1 yet? I'm considering getting myself a late
Christmas present.
How badly does it vignette? If it's not too bad, I could probably "fix"
it in Camera Raw.
An alternative might be the Pentax HD PENTAX-D FA 15-30mm f/2.8 ED SDM
WR, which would have roughly the same field of view on the K1 as my
Sigma 10-20mm F4-5.6 EX DC has on the K3. The Sigma vignettes like
shooting through a port-hole from across the room on the K1.
The only problem is the 15-30mm f/2.8 costs 3 times as much as the 15
f/4.
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