opinions of DA12-24mm; vs Rokinon 10mm

sheld · 01-31-2020, 04:35 PM

Originally posted by kh1234567890

Mine was second hand ...

Flickriver: Photoset 'SMC Pentax DA 12-24mm f4 ED AL (IF) Set' by kh1234567890

Those are great DA12-24mm example photos! Also, lots of other great photos too; thanks for posting! Here are a couple of examples showing UWA 12mm rectilinear distortion which I would like to see through my own camera's viewfinder. It would seem that 12mm is plenty wide enough; no need for a 10mm Rokinon.
Reflections | SMC Pentax DA 12-24mm f4 ED AL (IF) | kh1234567890 | Flickr
Exchange Street | SMC Pentax DA 12-24mm f4 ED AL (IF) | kh1234567890 | Flickr

kh1234567890 · 02-01-2020, 03:04 AM

Originally posted by sheld

Those are great DA12-24mm example photos! Also, lots of other great photos too; thanks for posting! Here are a couple of examples showing UWA 12mm rectilinear distortion which I would like to see through my own camera's viewfinder. It would seem that 12mm is plenty wide enough; no need for a 10mm Rokinon.
Reflections | SMC Pentax DA 12-24mm f4 ED AL (IF) | kh1234567890 | Flickr
Exchange Street | SMC Pentax DA 12-24mm f4 ED AL (IF) | kh1234567890 | Flickr

Thanks. It is not the smallest or lightest of lenses - and I don't usually bother using the wide hood - but having a zoom is nice because shooting everything at 12mm can get boring. My copy was second-hand. I was a bit apprehensive of buying used but the seller kindly sent me shots taken with it beforehand and I'm glad that I'd bought it.

I find it perfectly useable even wide open, unlike my DA15 Ltd.

As for it not being a portrait lens :

Or maybe not

sheld · 02-03-2020, 08:48 AM

what about the Tamron 10-24mm?

**luftfluss** · 02-03-2020, 09:29 AM

Originally posted by sheld

what about the Tamron 10-24mm?

Have you checked out the comparison review?

DA 12-24mm vs Sigma and Tamron 10-24mm Comparison Review - Introduction | PentaxForums.com Reviews

**mikesbike** · 02-03-2020, 05:29 PM

I've had the Pentax DA 12-24mm for many years now, and have always had a very high regard for it. I've heard it is being discontinued, as now the fine DA* 11-18mm f/2.8 is here with quiet AF and WR- quite expensive though.

After spotting the price offered at B&H for the wider-angle Sigma 10-20mm f/3.5 EX DC HSM, I got one last summer. I really like it, and have found the wider 10mm over 12mm to be noticeable. It is very well-designed, a half stop faster than my Pentax and with quiet AF. It is then only a half stop slower than the expensive DA * 11-18mm lens. The Sigma has a handy MF/AF switch on the lens in a good location. Quite a bargain for such a fine lens. Distortion figures are decent for such wide angle, though the 10mm prime lens you are considering might be lower. But then you don't have the advantages of having the versatility of a zoom lens. Distortion (linear as lab-measured) with this Sigma at mid FL's, like the Pentax, is near non-exisitant.

sheld · 02-05-2020, 10:05 AM

Originally posted by tokyoscape

I was in the same boat late last year. I used to have the DA15 and now use a lot of 10-17. I was looking at 12-24, Samyang 10, Irix 11 (FF lens).... So I go back to I ask myself why do I want a new ultra-wide?
I want a non fisheye 10-17 + WR, that is what I want. But then look at the 10-17, I can defish it at 10mm if I want to. With the right post-processing technic, it is still good enough for me. And all the other option comes with no WR but only DA11-18. I am not going to carry something that heavy. ....

Yeah, DA15mm + Pentax 10-17mm fisheye seems like an UWA winner since I already own both. I'm experimenting with defishing more; I discovered painshoppro gets rid of PF/CA pretty well which is the primary weakness of the 10-17mm fisheye.

Pentax mount 2nd hand copies of the Rokinon/Sigma10-20mm are rare and over priced and this is just a hobby for me and I have a bias towards more compact lenses. I have the same conclusion as tokyoscape; and the UWA showdown conclusion!

Originally posted by tokyoscape:

So what is my conclusion? I am still stuck with 10-17!

Quote:

Rokinon 8mm vs. 10mm vs. Sigma 8-16mm vs. Pentax 10-17mm Ultra-wide Showdown Review
It's hard to pick an overall "winner," and even going by the numbers we have an apparent tie. At the end of the day, if you could only afford one (and you aren't an overly demanding and professional pixel peeper), our choice lies in the Pentax 10-17mm fisheye zoom. Aside from the Rokinon 10mm, our reviewer has personally owned the rest of the lenses for over three years each, and yet all he has left is the Pentax after streamlining his kit...

kh1234567890 · 02-05-2020, 03:35 PM

Originally posted by sheld

Yeah, DA15mm + Pentax 10-17mm fisheye seems like an UWA winner since I already own both. I'm experimenting with defishing more; I discovered painshoppro gets rid of PF/CA pretty well which is the primary weakness of the 10-17mm fisheye.

The problem with defishing is that, unless you have a very good imagination, what you see in the viewfinder is not what you'll end up with. IQ wise the DA12-24 is much better than a defished DA10-17.

02-03-2020, 05:29 PM	#20
mikesbike Site Supporter Join Date: Dec 2016 Location: Southeastern Michigan Posts: 4,551	I've had the Pentax DA 12-24mm for many years now, and have always had a very high regard for it. I've heard it is being discontinued, as now the fine DA* 11-18mm f/2.8 is here with quiet AF and WR- quite expensive though. After spotting the price offered at B&H for the wider-angle Sigma 10-20mm f/3.5 EX DC HSM, I got one last summer. I really like it, and have found the wider 10mm over 12mm to be noticeable. It is very well-designed, a half stop faster than my Pentax and with quiet AF. It is then only a half stop slower than the expensive DA * 11-18mm lens. The Sigma has a handy MF/AF switch on the lens in a good location. Quite a bargain for such a fine lens. Distortion figures are decent for such wide angle, though the 10mm prime lens you are considering might be lower. But then you don't have the advantages of having the versatility of a zoom lens. Distortion (linear as lab-measured) with this Sigma at mid FL's, like the Pentax, is near non-exisitant. Last edited by mikesbike; 02-03-2020 at 05:43 PM.

02-05-2020, 10:05 AM	#21
sheld Senior Member Join Date: Apr 2010 Location: Austin, TX Photos: Albums Posts: 164 Original Poster	Originally posted by tokyoscape I was in the same boat late last year. I used to have the DA15 and now use a lot of 10-17. I was looking at 12-24, Samyang 10, Irix 11 (FF lens).... So I go back to I ask myself why do I want a new ultra-wide? I want a non fisheye 10-17 + WR, that is what I want. But then look at the 10-17, I can defish it at 10mm if I want to. With the right post-processing technic, it is still good enough for me. And all the other option comes with no WR but only DA11-18. I am not going to carry something that heavy. .... Yeah, DA15mm + Pentax 10-17mm fisheye seems like an UWA winner since I already own both. I'm experimenting with defishing more; I discovered painshoppro gets rid of PF/CA pretty well which is the primary weakness of the 10-17mm fisheye. Pentax mount 2nd hand copies of the Rokinon/Sigma10-20mm are rare and over priced and this is just a hobby for me and I have a bias towards more compact lenses. I have the same conclusion as tokyoscape; and the UWA showdown conclusion! Originally posted by tokyoscape: So what is my conclusion? I am still stuck with 10-17! Quote: Rokinon 8mm vs. 10mm vs. Sigma 8-16mm vs. Pentax 10-17mm Ultra-wide Showdown Review It's hard to pick an overall "winner," and even going by the numbers we have an apparent tie. At the end of the day, if you could only afford one (and you aren't an overly demanding and professional pixel peeper), our choice lies in the Pentax 10-17mm fisheye zoom. Aside from the Rokinon 10mm, our reviewer has personally owned the rest of the lenses for over three years each, and yet all he has left is the Pentax after streamlining his kit... Last edited by sheld; 02-05-2020 at 10:13 AM.

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01-31-2020, 04:35 PM	#16
sheld Senior Member Join Date: Apr 2010 Location: Austin, TX Photos: Albums Posts: 164 Original Poster	Originally posted by kh1234567890 Mine was second hand ... Flickriver: Photoset 'SMC Pentax DA 12-24mm f4 ED AL (IF) Set' by kh1234567890 Those are great DA12-24mm example photos! Also, lots of other great photos too; thanks for posting! Here are a couple of examples showing UWA 12mm rectilinear distortion which I would like to see through my own camera's viewfinder. It would seem that 12mm is plenty wide enough; no need for a 10mm Rokinon. Reflections \| SMC Pentax DA 12-24mm f4 ED AL (IF) \| kh1234567890 \| Flickr Exchange Street \| SMC Pentax DA 12-24mm f4 ED AL (IF) \| kh1234567890 \| Flickr

02-01-2020, 03:04 AM	#17
kh1234567890 Veteran Member Join Date: Sep 2010 Location: Manchester, UK Photos: Gallery Posts: 2,653	Originally posted by sheld Those are great DA12-24mm example photos! Also, lots of other great photos too; thanks for posting! Here are a couple of examples showing UWA 12mm rectilinear distortion which I would like to see through my own camera's viewfinder. It would seem that 12mm is plenty wide enough; no need for a 10mm Rokinon. Reflections \| SMC Pentax DA 12-24mm f4 ED AL (IF) \| kh1234567890 \| Flickr Exchange Street \| SMC Pentax DA 12-24mm f4 ED AL (IF) \| kh1234567890 \| Flickr Thanks. It is not the smallest or lightest of lenses - and I don't usually bother using the wide hood - but having a zoom is nice because shooting everything at 12mm can get boring. My copy was second-hand. I was a bit apprehensive of buying used but the seller kindly sent me shots taken with it beforehand and I'm glad that I'd bought it. I find it perfectly useable even wide open, unlike my DA15 Ltd. As for it not being a portrait lens : Or maybe not

02-03-2020, 08:48 AM	#18
sheld Senior Member Join Date: Apr 2010 Location: Austin, TX Photos: Albums Posts: 164 Original Poster	what about the Tamron 10-24mm?

02-03-2020, 09:29 AM	#19
luftfluss Site Supporter Join Date: Jun 2011 Location: NJ Photos: Gallery \| Albums Posts: 11,619	Originally posted by sheld what about the Tamron 10-24mm? Have you checked out the comparison review? DA 12-24mm vs Sigma and Tamron 10-24mm Comparison Review - Introduction \| PentaxForums.com Reviews

02-05-2020, 03:35 PM	#22
kh1234567890 Veteran Member Join Date: Sep 2010 Location: Manchester, UK Photos: Gallery Posts: 2,653	Originally posted by sheld Yeah, DA15mm + Pentax 10-17mm fisheye seems like an UWA winner since I already own both. I'm experimenting with defishing more; I discovered painshoppro gets rid of PF/CA pretty well which is the primary weakness of the 10-17mm fisheye. The problem with defishing is that, unless you have a very good imagination, what you see in the viewfinder is not what you'll end up with. IQ wise the DA12-24 is much better than a defished DA10-17.