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09-25-2022, 03:04 PM   #1
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Zoom Lens for K-1ii

I would like to know if I should purchase the DFA 24-70 2.8 or the DA* 16-50 PLM 2.8 to use with with my K-3 and K1ii. What is your experience using the DA* 16-50 2.8 on the K1ii? Thanks

09-25-2022, 04:42 PM   #2
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QuoteOriginally posted by bscott Quote
I would like to know if I should purchase the DFA 24-70 2.8 or the DA* 16-50 PLM 2.8 to use with with my K-3 and K1ii. What is your experience using the DA* 16-50 2.8 on the K1ii? Thanks
The 16-50mm is a crop lens, so you'd essentially be losing out on that wide-angle coverage when using it on the K-1. Starting at 22mm, it fully covers the corners but only in 1:1 crop mode. Before that it's only usable in APS-C crop mode.

Given that the 24-70mm is essentially the full frame version of the 16-50mm, I'd pick the former if you use your K-1 for wide-angle shooting, but that makes a lot of assumptions. What are your main use cases for each camera?

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09-25-2022, 04:44 PM   #3
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Hello. I would not recommend the DA 16-50 on your K-1II per Full frame coverage of the new DA* 16-50mm F2.8 PLM - PentaxForums.com.

The DFA 24-70 is a wonderful lens and has not let me down for wedding photography purposes.

In order to give you a more thorough answer, what/how/where do you shoot (what is the anticipated usage)?
09-26-2022, 01:02 AM   #4
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The DFA 24-70mm would be more the ideal for use with both your APS-C K-3 and your FF K-1 II, compared with the DA* 16-50mm which is designed for APS-C use only. On APS-C, the DFA lens's 24mm short end still can provide some wide angle while it offers greater "reach" at he long 70mm end. Like a lens of 35-105mm f/2.8 would be on your K-1 II. On your K-1 II, the 24mm setting would provide an even greater wide angle FOV. It would be very useful on both. Image quality on either would be excellent.


Last edited by mikesbike; 09-26-2022 at 01:09 AM.
09-26-2022, 01:39 AM   #5
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The DFA 28-105 is also worthy of consideration, as well as being lighter and cheaper. If you can do without the f/2.8, it's a great walk-around zoom.
09-26-2022, 07:22 AM   #6
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My favorite 3 lens for my k1 Mkll is Pentax 15-30mm, Pentax 28-105 (practically lives on it) & 70-200mm. Only aps-c lens I kept was my Pentax 35mm macro. If I need a narrower field of view I just use crop mode with any of those. I can live with approx. 15mp photos.
09-26-2022, 11:53 AM   #7
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QuoteOriginally posted by Paul the Sunman Quote
The DFA 28-105 is also worthy of consideration, as well as being lighter and cheaper. If you can do without the f/2.8, it's a great walk-around zoom.
I agree with this also. We are speaking here of a versatile zoom lens that can deliver both wide angle and shorter telephoto shots, for all around use. This lens can provide very high-quality imaging and has more tele available at the long end. It is a very useful lens, well-made yet still quite compact.

I have both this lens for when I'll NOT be needing the larger f/2.8 aperture, preferring it for its compactness plus added zoom range, AND my old Tokina 28-70mm f/2.6-2.8 Pro II l for times when having the larger aperture is very important. As an alternative, I also have my long-time Sigma 24-60mm f/2.8 when wider angle is more important. When the larger aperture of these lenses is needed, nothing else will do.


Last edited by mikesbike; 09-26-2022 at 02:21 PM.
09-26-2022, 02:01 PM   #8
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The 16-50 (latest version) would be appropriate for the K-3. The 24-70 would be appropriate for the K-1 II. If it were me and I had to choose, I would choose the 24-70 due its full frame capability and the way that it would make use of the K-1 II full frame sensor.

I have the Pentax K-1 II and the images I get using it are amazing.
09-27-2022, 08:32 AM   #9
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Thanks for all of your suggestions and I usually shoot nature or landscape. I don't have a short zoom lens and use single lens from 24 mm to 50 mm. I'm thinking a zoom in this range would be more convenient for shooting.
09-27-2022, 08:41 PM   #10
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I used K-1 + DFA24-70 for 5 years

Now I'm using K-3III + HD*16-50PLM

HD*16-50PLM is very close to DFA24-70mm in terms of dimensions and weight

It is totally pointless to mount the HD*16-50PLM on FF body, unless you want the PLM speed, which K-1 and K-1II isn't good at

But of coz, the image quality of HD*16-50PLM is exceptional

Last edited by Hayashi; 10-02-2022 at 03:58 PM.
09-29-2022, 04:41 PM   #11
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QuoteOriginally posted by bscott Quote
Thanks for all of your suggestions and I usually shoot nature or landscape. I don't have a short zoom lens and use single lens from 24 mm to 50 mm. I'm thinking a zoom in this range would be more convenient for shooting.
I can definitely understand your thinking. A zoom lens having a short tele range along with 24mm at the short end would serve both your APS-C and your FF cameras very well. And it can be a very useful thing at times to have that large f/2.8 aperture available.
09-30-2022, 11:31 AM   #12
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I really enjoy the speed and responsiveness of K3iii. The 16-50 is a Pentax design and I would rather walk around with it and K3. The 24-70 on K1 is also a nice combo, but honestly I sold it, preferring fixed focal length lenses. So, the 16-50 will be no hood on K1, but much fun on K3. I am waiting for a *35 for K1. Next would be a snappy K1iii… Pentax has two lines of cameras and lenses, currently the apsc line is ahead in some areas.
10-01-2022, 01:08 PM   #13
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QuoteOriginally posted by zapp Quote
I am waiting for a *35 for K1
Well, it is not a new * lens having an advanced, quiet AF and WR construction along with an attending high price, but have you tried the new HD FA 35mm f/2 lens? It is an outstanding performer, especially at its price point. I like it very much on my K-1 II. Very compact, lightweight, and easy-carrying. A very versatile FL for FF use.
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