[dmjjr]

Really considering the K1ii with 28-105 kit from B & H. All my lenses are are APS-C & if I buy this kit I can’t buy any FF lenses for a while. Am I gaining anything? Currently using K3-ii

[bertwert]

It depends on what DA lenses you have - some offer pretty good coverage on FF: Full Frame Coverage of DA Lenses: Comprehensive Test - Gear Guides | PentaxForums.com

Of course you can also use the K-1 in crop mode, where you'll lose some resolution compared to the K-3ii but gain in dynamic range, high iso, etc. You also gain any benefits of user interface of the K-1. A good question to ask - why are you interested in the K-1?

[SelrahCharleS]

Depends on what lenses you have currently. Some of the APS-C lenses work OK on the K-1.

[ramseybuckeye]

Really considering the K1ii with 28-105 kit from B & H. All my lenses are are APS-C & if I buy this kit I can’t buy any FF lenses for a while. Am I gaining anything? Currently using K3-ii

I have neither camera, but why not use the camera comparison tool? Offhand I would say the big advantage is the moveable screen, better autofocus, other improvements with newer technology, but on the other hand it's heavier and can take less shots per second. Using the camera comparison you can go though and rate what is important to YOU. Of course you can also use legacy lenses at full frame.

[ehrwien]

Photographic Equipment
DA 18-55. DA 16-45, DA 50-200,
DA 55-300, DA 40 2.8 Ltd, DA 15 Ltd, , DA 70 Ltd
DA 21 3.2 Ltd

The DA 40 and DA 70 will work quite well. 15 and 21 not so much. Not sure about the zooms.

But you can always either use crop mode in-camera right away, so the angle of view you get from the resulting images will be the same as if used on a crop camera - or shoot in full frame mode and crop the resulting images yourself, which will give you a little more to work with than using crop mode in-camera

[aaacb]

I had a k3ii for four years before getting the k1ii kit during significant holiday discounts two years ago. My reasons were that I wanted a tilting screen, and I had the fa 43 and fa 100 macro so I thought they'd work better for me without crop (they do).

Initially it felt a lot larger, and it really is, despite being quite small for a full frame camera of this high quality. For a while I thought a KP would have been the better choice. But then I got interested in older manual lenses, which make most of my collection now.

I ended up selling all my DA lenses, starting with the zooms. For me it was too much of a compromise to have visible vignetting in the viewfinder, but if you are ok with that, they do work just fine in crop mode and the viewfinder shows a frame. In live view of course there's no degradation in experience. But some lenses work well, I had the DA 40 and 70 as mentioned above Full Frame Coverage of DA Lenses: Comprehensive Test - Gear Guides | PentaxForums.com

[wadge22]

If your long term goals are to go full frame, I wouldn't be to worried about making that move now despite not yet having a full bag of FF lenses. For one thing, as others pointed out, you can use your current lenses with K1ii in crop mode just fine, and some may work well on full frame already. Add to that the fact that 28-105 is an extremely versatile lens, and I'd say you'll likely be satisfied with that for some time. Then upgrade to full frame lenses as needed / as funds allow.

If you aren't specifically planning on getting a full frame camera, and are just interested in upgrading generally, I would consider a body only K3iii instead. It looks to actually be cheaper than the K1ii kit w/ lens.
That camera is newer (and from everything I read, very impactfully so), and won't (necessarily) send you down a LBA hole like the full frame might.

If you aren't sure whether you should prefer FF or APSC, a good use of the search bar should reveal tons of threads helping people make that very decision.
Not that there's anything wrong with going over it again with your particulars in mind (especially since everyone is trying to up their post counts for the current contest). If that's the case, maybe drop a little more info on what sort of shooting you do or would like to do.

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Last edited by wadge22; 12-19-2021 at 12:23 PM.

[dmjjr]

Lenses-Ltd’s-15, 21, 40, & 70. DFA 100 2.8 Macro, DA 50 1.4. DA 55-300 PLM.
Camera’s-Ist DS, K5iis & K3ii.
Been shooting Pentax since 1990 (Super Program). Just trying to get the best possible image

[C_Jones]

I have a Pentax K-1 II with a Pentax 70-200 on it. Both are amazing. With the Pentax 28-105 on a K-1 II you would be giving yourself a large window of opportunity to use the K-1 II in its full frame format. I think you might be surprised at what the K-1 II performance capabilities are.

[wadge22]

Lenses-Ltd’s-15, 21, 40, & 70. DFA 100 2.8 Macro, DA 50 1.4. DA 55-300 PLM

I'd double check that DA50/1.4
It may well be the much more common D Fa* 50 1.4, Fa 50 1.4, Da* 55 1.4, or Da 50 1.8 versions.
I don't think there actually is a DA50/1.4
The first two are already full frame lenses, and the Da*55 looks like it covers full frame very well when stopped down.

[seventhdr]

Lenses-Ltd’s-15, 21, 40, & 70. DFA 100 2.8 Macro, DA 50 1.4. DA 55-300 PLM.
Camera’s-Ist DS, K5iis & K3ii.
Been shooting Pentax since 1990 (Super Program). Just trying to get the best possible image

Only your DA 15 and 21 will show significant Vignetting on a K-1.

The others DA 40, 70, 55-300 and 50 1.8 probably wont show anything.

While the DFA 100 macro is already a full frame lens.

So what you are going to miss is something on the wide to ultra wide side, which is currently covered by the 15 and 21 lenses, which you can add a full frame lens to later.

Your standard and telephoto lenses look just fine.

Regards

Chris

[kiwi_jono]

The DFA 28-105 is a good lens and I suspect you will find it a go to lens. Also the DA70 works pretty well on the K-1 and is relatively fast at f2.4. The DA 40 can be used too (although its not perfect, it probably good enough for most uses).

Also if you want a fast lens and don't mind manual focus there are loads of fast 50s that work really well on the K-1.
I have used my K-1 in crop mode with a Sigma 10-20 f3.5 for wide angle work and while you lose resolution, the quality is pretty good (I would rate it slightly better than my K-5).

[Oldbayrunner]

And don't forget you can pick up some of the Pentax F lens fairly cheaply. Two I own are well thought of and I have used on both my apsc and now K1 both the F 35-70 & the F 70-210 take lovely pictures.

[dmjjr]

One more question-does the crop mode give you the 1.5 factor for the PLM?

[ehrwien]

One more question-does the crop mode give you the 1.5 factor for the PLM?

Yes, but you will also have resolution reduced down by 1.5² to about 16mp. In crop mode you're just using the central portion of the full frame sensor that is as big as an aps-c sensor. Using the same lens to light the same area, the angles will be the same