Sigma 30mm f/1.4 thoughts and examples

GregX999 · 12-22-2011, 08:53 AM

Would anyone be able to take a photo of this lens sitting on a table next to an FA31 and one or two DA Limited primes? And a photo of it mounted to a K-7 or K-5?

Anvh · 12-22-2011, 11:43 AM

Originally posted by GregX999

Would anyone be able to take a photo of this lens sitting on a table next to an FA31 and one or two DA Limited primes? And a photo of it mounted to a K-7 or K-5?

photozone.de has tested them on the K10D at least so that would give you an idea.

But the DA limited, FA31 and Sigma 30mm are all different lenses so i don't know what you want to gain.

The DA35mm is noticably different and those lenses f/2.4 and f/2.8 macro limited arent that fast as the Sigma or the FA31.
And if you look at the DA21mm that's even more different, that's a wide angle lens while the other lenses are normal lenses, so what is it that you're looking at???

GregX999 · 12-22-2011, 02:26 PM

Originally posted by Anvh

photozone.de has tested them on the K10D at least so that would give you an idea.

But the DA limited, FA31 and Sigma 30mm are all different lenses so i don't know what you want to gain.

The DA35mm is noticably different and those lenses f/2.4 and f/2.8 macro limited arent that fast as the Sigma or the FA31.
And if you look at the DA21mm that's even more different, that's a wide angle lens while the other lenses are normal lenses, so what is it that you're looking at???

I'm trying to get an idea of how large the Sigma is. I know how large the FA31 and many of the DA Ltds. are. I want to keep my kit small (for traveling) so I'm trying to figure out the trade-offs of going with a smaller-slower lens vs. a larger-faster lens. I know the Sigma is larger than the others, but I'd like to see it next to some of those others.

TOUGEFC · 12-22-2011, 02:45 PM

This might help

joakimfors · 12-22-2011, 02:56 PM

Heh, TOUGEFC was a bit quicker.

From left:
DA* 50-135
DA* 55
Sigma EX 30
DA 18-55 WR
K 50/1.2
M 50/1.7
DA 70 Limited
DA 15 Limited

So yeah, the Sigma is quite a beast… almost as fat as the 50-135.

Anvh · 12-22-2011, 03:03 PM

Photozone.de has photo with the Sigma 30mm fitted on a k10d in their review about the lens, they have the same photo with the other lenses fitted so look at their site.

www.photozone.de/pentax

nah · 12-22-2011, 04:55 PM

I was so torn about this Sigma 30 f1.4 or the Sigma 28 f1.8 and in the end I chose the 28 because of the macro capabilities, the fact it's a FF lens (future FF, hoping!), and it was cheaper. I do how ever give up the physical size and speed of the 30.

It was really a tough decision.

cali92rs · 12-22-2011, 10:50 PM - **1 Like**

Just got this lens a few days ago, so I am getting used to its tendencies. All these were taken at f1.4. My dog Bentley and my Cockatiel Rosa. Oh and ignore the fat arm, lol.

This is going to be a fun lens

GregX999 · 12-23-2011, 12:13 AM

Thanks TOUGEFC, joakimfors and Anvh!

Those photos and that link are very helpful.

creampuff · 12-23-2011, 09:03 AM - **1 Like**

My eager chihuahua hoping for some cherries...

K-5 Sigma 30mm f/1.4 1/60sec at f/1.4, ISO 2000

Frogfish · 12-23-2011, 09:58 AM

Ha ha - that made me laugh Denis !

AKum8 · 12-24-2011, 12:04 PM

Some examples of K20D + Sigma 30mm

f/1.8 1/40

f/1.4 1/50

f/1.8 1/50

AKum8 · 12-24-2011, 12:06 PM

One more example:

K20D - Sigma 30mm - f/4 1/4000 ISO100 - pp with Lightroom

"Hand painting" by AKum8 on 500px

TOUGEFC · 12-24-2011, 04:37 PM

Merry Christmas!

sheld · 12-24-2011, 06:22 PM

Originally posted by AKum8

Some examples of K20D + Sigma 30mm

f/1.8 1/40
....

I think F/1.8-F/2.0 is the ideal aperture for the 30mm Sigma. The images are sharp, and the focus is good, and contrast is good. At F/1.4, I have more trouble getting sharp in focus photos, and the contrast isn't as good. This one is F/2.0 at 1/50th of a second, ISO1600, Pentax K-x. Austin, TX, 37th street stroll the other night. The longer I own this lens, the more I like it! I'm realizing that this lens can take some photos that no other APS-C lens can (except presumably the 31mm F/1.8). For awhile, I thought about getting the lighter 35mm F/2.4, but now I've decided to stick with the Sigma 30mm and the Pentax DA15mm as my main prime lenses, although I would like to eventually get a 50mm F/1.7, or even better, a 77mm F/1.8. I've also compared my Tamron 28-75mm with the Sigma 30mm F/1.4, and at F/2, the Sigma is sharper, and has better contrast than the Tamron at 28mm at F/2.8; both are superb stopped down to F/4.

Another one from the same walk, 1/25th, F/2.0, ISO1600

- Shel

12-22-2011, 03:03 PM	#261
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Photozone.de has photo with the Sigma 30mm fitted on a k10d in their review about the lens, they have the same photo with the other lenses fitted so look at their site. www.photozone.de/pentax Last edited by Anvh; 12-23-2011 at 12:25 PM.

12-24-2011, 06:22 PM	#270
sheld Senior Member Join Date: Apr 2010 Location: Austin, TX Photos: Albums Posts: 164	Originally posted by AKum8 Some examples of K20D + Sigma 30mm f/1.8 1/40 .... I think F/1.8-F/2.0 is the ideal aperture for the 30mm Sigma. The images are sharp, and the focus is good, and contrast is good. At F/1.4, I have more trouble getting sharp in focus photos, and the contrast isn't as good. This one is F/2.0 at 1/50th of a second, ISO1600, Pentax K-x. Austin, TX, 37th street stroll the other night. The longer I own this lens, the more I like it! I'm realizing that this lens can take some photos that no other APS-C lens can (except presumably the 31mm F/1.8). For awhile, I thought about getting the lighter 35mm F/2.4, but now I've decided to stick with the Sigma 30mm and the Pentax DA15mm as my main prime lenses, although I would like to eventually get a 50mm F/1.7, or even better, a 77mm F/1.8. I've also compared my Tamron 28-75mm with the Sigma 30mm F/1.4, and at F/2, the Sigma is sharper, and has better contrast than the Tamron at 28mm at F/2.8; both are superb stopped down to F/4. Another one from the same walk, 1/25th, F/2.0, ISO1600 - Shel Last edited by sheld; 12-24-2011 at 06:44 PM.

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12-22-2011, 08:53 AM	#256
GregX999 Forum Member Join Date: Jan 2010 Location: South SF Bay, CA Posts: 71	Would anyone be able to take a photo of this lens sitting on a table next to an FA31 and one or two DA Limited primes? And a photo of it mounted to a K-7 or K-5?

12-22-2011, 11:43 AM	#257
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Originally posted by GregX999 Would anyone be able to take a photo of this lens sitting on a table next to an FA31 and one or two DA Limited primes? And a photo of it mounted to a K-7 or K-5? photozone.de has tested them on the K10D at least so that would give you an idea. But the DA limited, FA31 and Sigma 30mm are all different lenses so i don't know what you want to gain. The DA35mm is noticably different and those lenses f/2.4 and f/2.8 macro limited arent that fast as the Sigma or the FA31. And if you look at the DA21mm that's even more different, that's a wide angle lens while the other lenses are normal lenses, so what is it that you're looking at???

12-22-2011, 02:26 PM	#258
GregX999 Forum Member Join Date: Jan 2010 Location: South SF Bay, CA Posts: 71	Originally posted by Anvh photozone.de has tested them on the K10D at least so that would give you an idea. But the DA limited, FA31 and Sigma 30mm are all different lenses so i don't know what you want to gain. The DA35mm is noticably different and those lenses f/2.4 and f/2.8 macro limited arent that fast as the Sigma or the FA31. And if you look at the DA21mm that's even more different, that's a wide angle lens while the other lenses are normal lenses, so what is it that you're looking at??? I'm trying to get an idea of how large the Sigma is. I know how large the FA31 and many of the DA Ltds. are. I want to keep my kit small (for traveling) so I'm trying to figure out the trade-offs of going with a smaller-slower lens vs. a larger-faster lens. I know the Sigma is larger than the others, but I'd like to see it next to some of those others.

12-22-2011, 02:45 PM	#259
TOUGEFC Veteran Member Join Date: Nov 2009 Location: Brisbane Photos: Gallery Posts: 3,561 Original Poster	This might help

12-22-2011, 02:56 PM	#260
joakimfors Senior Member Join Date: Jan 2009 Location: Lund, Sweden Posts: 237	Heh, TOUGEFC was a bit quicker. From left: DA* 50-135 DA* 55 Sigma EX 30 DA 18-55 WR K 50/1.2 M 50/1.7 DA 70 Limited DA 15 Limited So yeah, the Sigma is quite a beast… almost as fat as the 50-135.

12-22-2011, 04:55 PM	#262
nah Senior Member Join Date: May 2008 Location: New Westminster, Canada Photos: Gallery Posts: 282	I was so torn about this Sigma 30 f1.4 or the Sigma 28 f1.8 and in the end I chose the 28 because of the macro capabilities, the fact it's a FF lens (future FF, hoping!), and it was cheaper. I do how ever give up the physical size and speed of the 30. It was really a tough decision.

12-22-2011, 10:50 PM - 1 Like	#263
cali92rs Veteran Member Join Date: May 2011 Location: Long Beach, CA Posts: 3,354	Just got this lens a few days ago, so I am getting used to its tendencies. All these were taken at f1.4. My dog Bentley and my Cockatiel Rosa. Oh and ignore the fat arm, lol. This is going to be a fun lens

12-23-2011, 12:13 AM	#264
GregX999 Forum Member Join Date: Jan 2010 Location: South SF Bay, CA Posts: 71	Thanks TOUGEFC, joakimfors and Anvh! Those photos and that link are very helpful.

12-23-2011, 09:03 AM - 1 Like	#265
creampuff Veteran Member Join Date: May 2007 Location: Singapore Photos: Gallery Posts: 3,953	My eager chihuahua hoping for some cherries... K-5 Sigma 30mm f/1.4 1/60sec at f/1.4, ISO 2000

12-23-2011, 09:58 AM	#266
Frogfish Veteran Member Join Date: Dec 2009 Location: Shanghai Posts: 4,490	Ha ha - that made me laugh Denis !

12-24-2011, 12:04 PM	#267
AKum8 Forum Member Join Date: Jul 2010 Location: Milan Posts: 89	Some examples of K20D + Sigma 30mm f/1.8 1/40 f/1.4 1/50 f/1.8 1/50

12-24-2011, 12:06 PM	#268
AKum8 Forum Member Join Date: Jul 2010 Location: Milan Posts: 89	One more example: K20D - Sigma 30mm - f/4 1/4000 ISO100 - pp with Lightroom "Hand painting" by AKum8 on 500px

12-24-2011, 04:37 PM	#269
TOUGEFC Veteran Member Join Date: Nov 2009 Location: Brisbane Photos: Gallery Posts: 3,561 Original Poster	Merry Christmas!