[Takumar105]

Just received this little jewel yesterday and have a sample to show off its remarkable performance. To heighten the bokeh effect, this was given -60 Clarity in LR6 and then sharpened a bit. It is part of my hiking kit along with the Sigma 19/2.8 - wonderful lenses for $240/$199 respectively.

Attached Images

View Picture EXIF

File Date

 

[mohb]

Sigma 50-150 2.8

[goatsNdonkey]

Not long ago, I got a copy of the original 1979 Sigma f3.5-4 21-35mm. For my first tests, moments after it arrived in the mail, I employed my K10D. It was a cloudy day and the K10D's cropped sensor steals its ultrawideangledness, but the results, all shot with the lens wide open, were promising:





(these two are cross-posted in another thread)


Then, I next put it on my Sears (Ricoh) KSX loaded with a roll of Kodak Ultramax 400, restoring the ultra wide angle possibilities;







(At least two of these three are cross-posted in other threads.)


The lens really has no "macro"/close-focusing ability, beyond that it can focus on subjects rather near. The only way to increase magnification is to turn to the 35mm focal length . Since it is hard to get anything unrecognizably out-of-focus even with the lens wide open (first example below, from the K10D tests), true bokeh isn't possible, but near and far can certainly be separated:







The second of this group is taken at f8 at the closest focusing distance for the post on the side of the barn. The third example of the group, taken at f5.6, was taken from as low as I wanted to bend over the bed of daffodils, not a great flower macro shot, but they were the very first flowers I had seen by that point in this unseasonably warm late winter.
(Only the first of this set of three has been cross-posted.)

I'm very pleased with the lens so far. I will probably shoot a roll of slower black-and-white film with the lens next. Converting some of the Kodak Ultramax 400 scans to BW gives some prediction of what might be possible:



(Cross-posted)


We have one review of this lens here at PF: Sigma 21-35mm F/3.5 - 4 Lens Reviews - Sigma Lenses - Pentax Lens Review Database

From what I have read, the second version of this lens, the f3.5-4.2 released only a few years later, is much more common, and not many years after that was an AF version. Do other participants in this thread have THIS original version I have? Do post a sample picture if you want to tell about your copy of this version in reply to this post.
.
.
.

[Scorpio71GR]

I picked up a new lens yesterday for the K-1, a Sigma 12-24. This is a full frame lens and does work on the K-1. It does vignette wide open but Lightroom has a lens profile that takes care of it so no big deal. I went to the sculpture park today to give it a test run. Can not think of a better place plus the sun was out today.

All of these are at 12mm on the K-1 and range from f11 - f16.

















This one is at 24mm.


Here I wanted to see how it could handle a high contrast shot. The sun is right to my right and the right side of the statue was extremely bright.

[bladerunner6]

I picked up a new lens yesterday for the K-1, a Sigma 12-24. This is a full frame lens and does work on the K-1. It does vignette wide open but Lightroom has a lens profile that takes care of it so no big deal. I went to the sculpture park today to give it a test run. Can not think of a better place plus the sun was out today.

All of these are at 12mm on the K-1 and range from f11 - f16.

















This one is at 24mm.


Here I wanted to see how it could handle a high contrast shot. The sun is right to my right and the right side of the statue was extremely bright.

That is some nice work at the Gardens.

[Scorpio71GR]

That is some nice work at the Gardens.

Thank you, I just picked up this Sigma 12-24 from The Camera Shop in Muskegon. So far I am pleased with it. It was weird buying something in an actual size camera store.

[schnitzer79]

Fun day with the family at the zoo. Sigma 17-50 f2.8

[kengoh]

K1 + Sigma 10-20


K1 + Sigma 500 F4.5

[Scorpio71GR]

K-1 and Sigma 12-24. Still trying to figure this lens out. The exposure is really different. So much area to on that sensor at 12mm.

24mm, 5s, f11, ISO200


12mm, 3s, f11, ISO100. I am actually standing right in front of the sculpture which is about 10 feet or 3 meters high. i had to use the self timer and walk away from the camera to keep my shadow out of the frame. I keep forgetting the K-1 has wifi.

[Scorpio71GR]

K-1 with the Sigma 12-24 again at 12mm FF.

[Scorpio71GR]

A couple of K-1 shots tonight with the Sigma 12-24 at 12mm.
1st one is F6.3 ISO 500 1/30s


2nd one is f11 ISO 100 121 second exposure in Bulb mode.

[kengoh]

K1 + Sigma 500 F4.5 + Pentax 1.4x TC


K1 + Sigma 10-20 F4-5.6

[AldaCZ]

30 A

[mohb]

Sigma 17-70 (old version) &K3

[Scorpio71GR]

Sigma 12-24 on the K-1 @ 12mm.