Originally posted by Winder Because the K-mount is built for a FF sensor and lens. The Fuji X-mount is built for APS-C from the ground up.
I wouldn't recommend putting your DA primes up against the Fuji. 14mm? Fuji definitely wins. 21/23mm Fuji definitely wins. 56mm/55mm Fuji definitely wins. Pentax wins with the 31/35mm, but that's about it. I haven't tried the Fuji 18mm, 27mm, or the 60mm, but the ones I have tried have had fantastic IQ. The Fuji bodies are not as good as the K-3, but Fuji has better glass.
Without sample images, such posts are nonsense. Each person needs to decide for themselves what image they like best, or if they like the Pentax rendition. It's a disservice to all to post such (lack of) data. If you can't bother showing us what you're talking about, why post? Everyone needs to have the chance to look at the images, and decide for themselves, I can live with Pentax, or I should have a Fuji, or even if they agree with your analysis, at all.
I mean really sharper than this 1:1 pixel peeper?
Uncropped image...
Ok, I gotta ask.. in what way better? This is an 18-135 image, and i don't see a lot of room for improvement, you can count every hair if you want, and where you can't, it's the limits of the sensor, and the DoF, not the limits of the lens... but I'm open, enlighten me. Show me what you're talking about.