Pentax DA 1.4x rear converter on K1?

I have ordered a Pentax DA 200mm f2.8 (I blame David Trout who always produces such great images from his). At some point I may want to pair this with a 1.4x converter. Will this combination give me FF coverage?

The official answer is no but..................

I don't have a DA*200 but I do have a Sigma APO EX 70-200 f2.8. and a H-DA 1.4x and a K1

Quick and dirty through kitchen window.

PEF exported from LR with no processing:



PEF exported from LR with Shadows and Whites at 100 and Clarity at 50:



Possibly get it better with some more work in LR and/or PS.

Hope this helps.

Thanks Brian. That's exactly what I wanted to find out. I was aware that the 1.4x is officially APS-C but in practice it looks to be useable on FF. A bit of 'vignette correction' should do the job, I would think. Or a fairly modest crop.