Originally posted by BigMackCam Lens choice is paramount with any system.
Sharpness or resolution is just one measure of performance, of course... but if we use that alone as a yard-stick, there are plenty of very sharp lenses in K-mount without Pentax having to play catch-up. You just have to pick the right ones
Looking at the reviews for Panasonic lenses, I see some impressive resolution figures. On the other hand, several models show pretty serious distortion and vignetting. Those issues are usually quite easy to resolve in post-processing - but so, too, is sharpening on images from slightly-softer lenses. It depends on your priorities as to what matters more.
As for weight and bulk, micro 4/3 sensors require a considerably-smaller image circle, which allows for smaller lenses. That's definitely a nice up-side to those systems... but it's a trade-off with sensor image quality, of course - particularly as you start to increase sensitivity into higher ISO territory. So, again, it depends on your priorities.
The GX-80 does look like a fine piece of equipment, though
Yup, true. I think what impressed me with Panasonic is simply that you can pick any lens (from what I know, I haven't tried them all obviously), even a 70 Euro kit lens, and it's good. Even though if it is tiny. It may not be fast, but it's sharp, and doesn't seem to have much CA, vignetting is rather limited (but Lightroom automatically applies a profile...). I like this high quality approach. With other systems IMHO the smaller, lesser lenses are of inferior quality. If you want great quality, you'll need to shell out for the fast, expensive and huge lenses, even if you don't need their speed.
In any case, sharpness isn't that important for me. Size and weight is more so. The sensor clearly isn't as good as even the K-5 sensor. It's not a perfect camera, by no means, but I think it can nicely complement, say, a Pentax or other DSLRs. Want to do street life, want to have something in the bag just in case, want to shoot video: Panasonic. Going on a paid gig, or need good low light performance, need the highest possible quality: Pentax.
Oh, and I bought a Logitech M720 mouse. It supports Unifying (their little USB dongle) and Bluetooth, and it has a button to cycle between devices. Basically you can connect it to 3 Unifying enabled and/or Bluetooth devices and control them. Great if you use a desktop, a notebook and a tablet, for example. The shape is rather ergonomic but still compact, it's relatively quiet (more so than my old G400 gaming mouse), and it's simply pleasant to use. Sadly the refresh rate and dpi is relatively low (still good for normal mice, but a huge step down from my G400).