Well, my younger brother let my dad borrow his E-M5II for a few days & my dad liked it immediately. He looked at the E-M1 & PRO lens deal on B&H & ordered it. So now there are 2 Olympus shooters in the family.
I got my hands on my dad's newly acquired Olympus OMD E-M1 & Olympus 12-40mm f/2.8 PRO lens. All I can say is that it's pretty awesome. I'm testing it side by side with my K-50 & so far, this little m43 camera can definitely hang with the K-50 all the way up to ISO 12800. The IQ starts falling apart rapidly past ISO 12800 compared to the K-50, but I never really shoot past ISO 6400 most of the time anyway, so it's kind of irrelevant. It's definitely a bit faster & more accurate at autofocusing. It can actually track moving subjects a bit faster & more accurate in low light than what my K-50 can. I'll usually have to resort to flipping the focus switch to M on my K-50 a good chunk of the time when shooting moving subjects in low light. I'm going to guess that the K-3/3II AF performs a little better than the E-M1 in low light. The 5-axis IBIS lets me shoot at lower ISO a lot easier than the SR in my K-50. I can take a 1 second handheld shot that still looks pretty decent, compared to the K-50 at 1 second.
My only gripes are the funky menu system in the camera & the cheap ass lens cap that seems to pop off too easily. Someone at Olympus should be flogged for that. This PRO lens is amazing, but the cap feels so cheap that it's almost ridiculous. My Pentax caps feel like their hand crafted to the highest degree, compared to the Olympus cap. It's ridiculous. Hahaha! The lens hood feels decent, but given the all-metal construction, it should have been metal too.
The overall build of the camera & lens is amazing. It's far better than my K-50 & lenses that I own. I'm also going to guess that the K-3/K-3II has similar or better build than the E-M1. I don't have any Pentax limited lenses, but my guess is that they'll be similar to the Olympus PRO lenses as far as build quality goes.
But yeah. I'm comparing an "apple" to an "orange" here. I guess if I had a K-3/K-3II with some better glass, it would be a different story.
I'm really anxious to find out what Pentax is doing with their upcoming APS-C flagship, but it looks like we're not going to see anything in that respect before April 2017 at the earliest, but I'm thinking more like the end of 2017 & maybe not even until 2018 now. That B&H deal for $1299 is pretty great. It's like you pay $999 for the lens & they throw in the E-M1 for only $300. That or you buy the body for $1099 & they throw the lens in for $200.
It's so tempting. However, I don't know if I would still jump on that deal, since my dad has that lens & I could borrow it at any time. The E-M5II & E-M1 bodies alone are a bit pricey too. On the other hand, the K-3II could get an even bigger price cut next year. Hmmmm....
I'm gonna wait it out a bit. There are going to be a lot of discounts & incentives this coming holiday season. Maybe I can get some more Pentax glass or even a K-3II. That or an insanely good deal on an older Olympus body & borrow my family's glass. I'll see what's up. Thanks for the feedback!