Originally posted by tduell I predominately shoot birds with a K-1 and a K-3 II, using the D FA 150-450 almost always with the DA AF Rear converter 1.4x AW. This means wide open is f/8.0 hence the shutter speeds needed for these subjects often require higher ISO.
I love the IQ and low noise of the K-1 and the reach and frame rate of the K-3 II, but quite often find the noise level of K-3 II more than I would like.
What I would really like is a K-3 II with the low noise/IQ of the K-1 but perhaps that's just wishful thinking.
I note that the KP is reported to have improved noise levels, but have not seen anything that allows a comparison with the K-1. Is there any info/data that allows such a comparison?
I guess what I'm really looking/hoping for is the K-3 II successor to go a long way towards bridging that gap.
Cheers,
Terry
Your lens setup is very large and heavy. The KP is compact and an excellent 2nd body to the K-1 as a general rule. It is also compact in the bag to carry along. In my case, like others, when it comes to large lenses I do much of the handling by holding mainly the lens to support the ensemble anyway, so a compact body is still ok. With the KP, you might possibly be happier with the additional battery grip, which offers better balance with large lenses. But it does not have the grip's top overhang like the K-3 due to the vertical front finger dial. I bought the BG and found handling balance improved with my FA* 300mm f/4.5 lens, which is not as heavy as your D FA 150-450mm. But it does add size and weight. If using a tripod, it should matter little. I have yet to put mine on a tripod, but someone wrote that the BG was preferred when using one with a large lens attached. But then, your lens has its own tripod foot anyway. Holding and body preferences do vary with individuals. The KP is a great camera, but If you'd prefer a body like the K-3 II you might consider waiting for its replacement.
I would have thought that f/5.6 being wide open at full zoom, that with your 1.4x TC it would be a bit under f/8 but that would still greatly compromise AF if not eliminate it.
Last edited by mikesbike; 09-22-2017 at 10:03 AM.