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12-23-2016, 03:42 PM   #16
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QuoteOriginally posted by clackers Quote
The older 24mm Sigma f1.8 still gets used by me. Top pic on the K-S1, bottom on the K-1.

I have the Samyang 24mm as well, which is sharper but isn't autofocus.



looks good I read there are diff Sigma versions of 24 1.8? AF not important on 24mm

---------- Post added 12-23-16 at 11:44 PM ----------

QuoteOriginally posted by dfp771 Quote
Shanti, Yes, my first copy of the Samyang 24mm was/is fine. I'm not saying the colors are bad- just different. I also always shoot RAW and later process with Lightroom & DxO Optics Pro. Yes, the Rokinon 135mm is the same/re-branded Samyang. In the studio I use all four full-frame lenses I own with the same lighting setup- (Samyang 24mm, Sigma 35mm, Pentax 77mm, and the Rokinon 135mm). The Pentax 77mm has more reds and blues. The Samyang & Rokinon have more greens & browns. And the Sigma seems to have more yellows. I'm sure if a buy a passport color checker I can adjust the RAW images in Lightroom so they reflect the true color of the scenes. One would definitely need to adjust the color based on the camera/lens combo... The Rokinon 135mm F2.0 is probably my sharpest lens I own, even at F2.0. I'm just saying that one should be aware that every lens handles color slightly differently. For fashion photography, besides doing white balance, color adjustments so the final finished photo reflects the true color of the fabric/material are mandatory.
sounds good..quality control works there i guess... iI will use mostly for landscapes & PS & go for realistic colors

---------- Post added 12-23-16 at 11:47 PM ----------

QuoteOriginally posted by Sandy Hancock Quote
FA*24 is excellent stopped down, and has *character* wide open. If you want technically perfect and boring, it's not the lens for you.

I reckon the DFA15-30 is better @ 24mm the than the DFA24-70.
so harp for landscapes with PS on K1 then? the 15-30 has no filter mount I think?? would love to try somewhere but this ain't Pentax land here in Denmark!!

---------- Post added 12-23-16 at 11:49 PM ----------

QuoteOriginally posted by banep Quote
DFA 24-70mm is excellent lens and much better than Sigma 24-105mm.
At my local Sigma dealer 24-105 is 799€:
24-105 / 4

ART HSM
HSM
82
Torba
C N S P
799

I ve'heard that Sigma lens have a lot of vignetting on full frame cameras and it is optically not better than Pentax D-FA 28-105 except it is wider and a little bit faster on tele end.
If you want cheap and very good lens in that range get yourself good copy of second hand Pentax F 24-50mm f/4.
I am very impressed with F24-50. Usable at f/4.5, excellent at f/5.6 and great at f/8, f/11.
It is not weather sealed, construction is typical for F series lenses but image quality on K-1 is great.
have not seen SIgma 24-105 for K mount? where did you
must check ebay for the F24-50

12-23-2016, 11:44 PM   #17
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QuoteOriginally posted by Shanti Quote
looks good I read there are diff Sigma versions of 24 1.8? AF not important on 24mm

---------- Post added 12-23-16 at 11:44 PM ----------



sounds good..quality control works there i guess... iI will use mostly for landscapes & PS & go for realistic colors

---------- Post added 12-23-16 at 11:47 PM ----------



so harp for landscapes with PS on K1 then? the 15-30 has no filter mount I think?? would love to try somewhere but this ain't Pentax land here in Denmark!!

---------- Post added 12-23-16 at 11:49 PM ----------



have not seen SIgma 24-105 for K mount? where did you
must check ebay for the F24-50
Lens is available at price list of official importer of Sigma products for my country.
24-105 f/4 ART HSM with 82mm thread bag included for 799€. C N S P means Canon, Nikon, Sony, Pentax.
Unfortunately for some reason cannot be ordered now just like 150-500mm in which I was also interested.
Sigma is a synonym for a disappointment to me for a very long time.
Currently my lenses of choice in that range are F24-50 f/4 and A35-105 f/3.5.
For 150-500 with 1000€ budget I don't have any options because my longest full frame lens is 300mm.
12-24-2016, 05:38 AM   #18
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15-30 can be fitted with all filter holders that fit Tamron 15-30. And there are some options, like Wonderpana or Haida 150mm kit. I have the Wonderpana collection which I originally bought for Canon 17mm TS-E lens.
12-24-2016, 06:48 AM   #19
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24 is pretty much the sweet spot for the 15-30 in terms of sharpness. The contrast is also amazing. Of the lenses I have that get to 24 in full frame (24-90 FA, 12-24 DA, 19-35 Cosina ) there is just no comparison.

12-24-2016, 07:14 PM   #20
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QuoteOriginally posted by banep Quote
Lens is available at price list of official importer of Sigma products for my country.
24-105 f/4 ART HSM with 82mm thread bag included for 799€. C N S P means Canon, Nikon, Sony, Pentax.
Unfortunately for some reason cannot be ordered now just like 150-500mm in which I was also interested.
Sigma is a synonym for a disappointment to me for a very long time.
Currently my lenses of choice in that range are F24-50 f/4 and A35-105 f/3.5.
For 150-500 with 1000€ budget I don't have any options because my longest full frame lens is 300mm.
I must check again here
found the SIgma 24 1.8 on Amazon ,but guess not good one??
I have a 50-150 fro my Nikon which is very good..Live view AF not so good on D500,but sharp & good contrast

check out fotolooman.nl best prices I found in EU so far

---------- Post added 12-25-16 at 03:16 AM ----------

QuoteOriginally posted by Pentax Syntax Quote
24 is pretty much the sweet spot for the 15-30 in terms of sharpness. The contrast is also amazing. Of the lenses I have that get to 24 in full frame (24-90 FA, 12-24 DA, 19-35 Cosina ) there is just no comparison.
OK so 15-30 is sharper than even 24-70? must start saving
12-26-2016, 09:13 PM   #21
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QuoteOriginally posted by banep Quote
Lens is available at price list of official importer of Sigma products for my country.
24-105 f/4 ART HSM with 82mm thread bag included for 799€. C N S P means Canon, Nikon, Sony, Pentax.
Unfortunately for some reason cannot be ordered now just like 150-500mm in which I was also interested.
Sigma is a synonym for a disappointment to me for a very long time.
Currently my lenses of choice in that range are F24-50 f/4 and A35-105 f/3.5.
For 150-500 with 1000€ budget I don't have any options because my longest full frame lens is 300mm.

No Pentax here on Sigma?? what country are you in?

https://www.sigmaphoto.com/24-105mm-f4-dg-os-hsm-a
01-05-2017, 07:31 PM   #22
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QuoteOriginally posted by Shanti Quote
No Pentax here on Sigma?? what country are you in?

https://www.sigmaphoto.com/24-105mm-f4-dg-os-hsm-a
I'm afraid "Pentax" is NOT one of the options appearing in the "Choose Mount" pull-down menu of the site.

12-28-2017, 04:11 AM   #23
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I have a FA 24-90, a nice lens, but it has it drawbacks.

I have Tokina zoom 20-35 3.5, quite sharp at the center an stepped down in the corners too.

But the one I prefer is my old companion that was kind of glued to my LX in the film era is the -
A 24mm F2.8.

It outperforms both above zooms hands down, a lot sharper in the corners and almost no vignetting.
The colors and contrast are better too.

In the roadmap of Pentax lenses they are showing an ultrawide prime lens. I wonder what that would be. A 24mm or wider like a 20mm?


Bert van Es, K-1, K-3, A24, FA31, FA43, FA50, FA24-90, F70-210, DFA100, F300
12-29-2017, 02:43 AM   #24
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QuoteOriginally posted by Shanti Quote
I see SIgma did a 24 1.8 for Pentax a few years ago,but is it sharp in the corners?
I have the sigma 24 1.8 and for cropped it was not too bad, but on FF its not the best in the corners, even when stopped down

I would look at another option before going with the sigma, the 15-30 2.8 is a very sharp lens and really puts to shame the sigma prime

If you can find the sigma 24mm 2.8 macro and depending on what you are wanting to shoot it might be a better option to go with, I have only used the lens on a cropped body and found it to be better in the corners than a lot of the 24mm primes of its day it might be something to look at.

smc FA* 24mm f/2 on cropped


sigma 24 2.8 macro

a person can only speculate on how it would handle in the corners but even on cropped you can see an improvement over other lenses
12-31-2017, 05:10 PM   #25
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QuoteOriginally posted by MJKoski Quote
I would get 25mm Zeiss ZK f/2.8. It has unique rendering at close distance and it is usable stopped down for landscapes (some field curvature).
The 25mm Distagon is one of my favorite lens. It is way better than my K24mm f2.8, and I am a big fan of K lens!
01-20-2018, 03:42 AM   #26
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QuoteOriginally posted by Shanti Quote
Hi now I got another K1, after the 1st one was defective..
what options for a min 24mm wide angle lens is there? I know the DFA 24-70 should be good, but only need 24-35mm or so? I see SIgma did a 24 1.8 for Pentax a few years ago,but is it sharp in the corners?
has anyone heard of Sigma doing a 24-105 ART lens for K mount?
thanks for any help
I had the Sigma 1.8/24 some time ago as well as the 1.8/20 and just hated the colour fringing. Lenses were not really sharp at any reasonable aperture - no comparison to the performance of current Sigma Art and similar lenses. The 24-70 is probably your best choice between 24-35 mm.
2.8/24 was a nice lens in film days - probably better than the f/1.8 series. The MF was quite OK mechanically, the AF version felt horrible. I used both versions, but only on film.
01-20-2018, 09:57 AM   #27
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QuoteOriginally posted by zapp Quote
I had the Sigma 1.8/24 some time ago as well as the 1.8/20 and just hated the colour fringing. Lenses were not really sharp at any reasonable aperture - no comparison to the performance of current Sigma Art and similar lenses. The 24-70 is probably your best choice between 24-35 mm.
2.8/24 was a nice lens in film days - probably better than the f/1.8 series. The MF was quite OK mechanically, the AF version felt horrible. I used both versions, but only on film.
I got a 24 2.8 MF oldie..but not so impressed..it was my main lens for B&W 35yrs ago..but for digital?? the 24-70 I read is not sharp near 70..& too heavy as want a prime..if Pentax ever comes with one
01-21-2018, 12:36 AM   #28
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QuoteOriginally posted by dfp771 Quote
I have the Samyang 24mm F1.4. It's a manual focus lens. It's very sharp, very contrasty. Colors are slightly different than Pentax but still a very nice lens.
According to reviews and MTF charts the Samyang should be the best choice at the moment.
Optical performance should be in the same league as the Zeiss 25mm. The build and feel of the lens should not match the Zeiss, though.
I'm waiting to have the Sammy in my hands, I found a second-hand example in the USA that looks like new. Hopefully it will not be decentered...
I already have the Sigma AF Ultra-Wide II 2.8/24mm, I don't know if it has the same optics of the Sigma 24mm Macro mentioned in this thread. Any clue?
I also own the FA 24-90mm and the Tokina AF 20-35mm. The former has never been used on the K-1, but has too wide a range to allow for great expectations, and the latter is quite good but not outstanding.
The best MF lens should be the early K version (3.5/24mm), but I have no personal experience.
The second K and the A versions have the same optics. There are worse 24mm's, many of them, especially older ones, but it's not considered among the best Pentax designs.
Two cheap options are the older Sigma Ultra-Wide (same design as the AF version) and the Tokina/Soligor C/D. Both should be more than fine, but I can't vouch for them because some old pictures on film are not enough to express any meaningful opinion.
The Kiron 2/24mm was at the top of the charts with the best brand names at its time. Though I have no idea how it performs on digital full frame. If it works well on a Nikon FF, it should work more or less the same on the K-1.

Both the FA* and the Sigma EX f/1.8 are expensive, I'm not entirely sure they deserve such important amount of money. So I never pulled the trigger. I have plenty of lenses and if I invest good money in a new one I want to be fairly certain that it would be much better than what I already own.
If I don't mind carrying a bulky, somewhat fragile monster (which is not the case most of the time...) my current go-to zoom, a Sigma EX DG HSM 34-70mm, performs more than Okey even at its lowest focal, and works very well in AF with the K-1.
The Samyang is not exactly small either, but is two stops faster, has no complicated system of cams/sleeves that can easily get out of whack, and is supposedly one step better: stopped down a little should be vignetting-free, have negligible distortion, and show high resolution across the entire frame.
Considering the impressive performance of its 1.4/35mm sibling, I have high expectations. I'm keeping my fingers crossed because there have been consistency issues with Samyang lenses.
I took the risk because it's hard to find a cheap second-hand one in Pentax mount.
If you are fine spending a little more, I'd suggest buying one from a vendor with a no-question-asked return policy.

Cheers

Paolo

Last edited by cyberjunkie; 01-21-2018 at 12:56 AM.
01-21-2018, 02:21 AM   #29
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I am using Pentax-K 24/2.8. I am quite satisfied with the image quality
01-21-2018, 07:51 AM   #30
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FA* 24mm is available cheaper than FA 31mm 1.8 Limited or FA 20mm 2.8.
Sharpness is good to very good.

There is also a new wide angle large aperture prime lens on the Pentax 35mm full frame format lens roadmap for 2018.

QuoteOriginally posted by Shanti Quote
what options for a min 24mm wide angle lens is there?
thanks for any help
DA 12-24mm covers 35mm full frame image circle from 18-24mm.
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