1:2 is macro territory. I know the Pentax 10-17 fisheye focuses very
close, though I don't know how close, I've only handled one once. CPC,
reputed to be a Pentax front company, used to make a 24mm f2.8 macro
focusing prime for 35mm, though I've never seen one in K mount. I
couldn't tell you how close focusing any of those others are though.
On 5/12/2013 5:52 PM, Larry Colen wrote:
On Sun, May 12, 2013 at 05:39:20PM -0400, P.J. Alling wrote:
The widest prime Pentax makes is the 14mm f2.8 the widest zoom is
the 12-24mm f4.0. I believe Sigma's 10-20mm is available in K mount
Tamron also makes a 10-20mm that isn't available in K mount though
it's an open secret that Pentax has a joint development deal with
them and Pentax doesn't market a version themselves. Samyang has a
10mm f2.8 lens that was in development last year that may or may not
someday be a. released and b. be available in K mount, (maybe it's
already been released). All those are rectilinear lenses. For
Fisheye lenses Pentax has a 10-17 and Sigma has an 8mm. Those are
the ones I can remember off the top of my head.
I have the Samyang 8mm. But, it's not a "closeup" lens. It's closest
focus is about a foot, though with depth of field, it's effectively
a lot closer than that.
I was wondering about close focus wide angle lenses. For example my
20/1.8 comes in to 1:2 levels of magnification.
On 5/12/2013 4:50 PM, Larry Colen wrote:
I got a bit silly today photographing under a stump with my 8mm.
I'm having way too much fun with that lens, I'm afraid.
It seems that it could be a lot of fun to have an ultrawide
(12mm or so on aps) closeup lens. My sigma 20 would be close to that
on full frame, but doesn't have quite the DOF to get close enough.
What options are available for doing such things, other than stopping
my fisheye down to f20 and just taking what I get?
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