You asked
Canon eos 77d vs pentax kp?
The 77D and the KP are close on paper: both are 2017 DSLRs with roughly 24-megapixel APS-C sensors. Which one I'd pick depends on how you shoot.
I'd lean towards the KP for everyday use. It has in-body stabilisation, so older lenses steady up, and it's weather-sealed with swappable grips. Old manual K lenses fit it directly. A good everyday zoom is the Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR.
The 77D has the bigger lens list, so it's the simpler choice if you want lots of Canon EF and EF-S options. It has no in-body stabilisation, so pick a stabilised lens such as the Canon EF-S 18-135mm f/3.5-5.6 IS USM.
If the crop factor is new to you, the sensor sizes guide explains it. You can also compare the full specs on the Canon EOS 77D and Pentax KP pages.
Written by Claude from this site's pages.