Originally posted by tuco The D810 has base ISO of 64, FYI. That's not even an extended mode. If all these people at this photo excursion had 645D/Z cameras, would the OP get on here and say, gee whiz, all these cropped sensor medium format people are going to make fun of my cropped sensor small format camera. No, he wouldn't, I believe. So why do Pentax owners have such a complex over their gear when when it comes to other brands, I wonder.
I don't think there's any secret to it: they mix with the wrong sort of people.
Seriously, some Canon and Nikon owners do get a superiority complex about their 35FF gear, even subconsciously. If you look in the photography sections of your local newsagent's you'll see dedicated publications for Canon and Nikon users, which deliberately promote the idea that they're using the only brand that matters. That's a bit like the Porsche-only (or Mercedes-only etc) magazines that are ostensibly about getting the best from your choice, but are really about excluding all other options from your thinking. It's called propaganda. Pentax Forums could be like that, too, but there are enough dissenters here to keep us thinking more broadly, or at least reflecting on our choices.
And even the nicest Canon or Nikon users can subtly push you, with questions or statements like: "Don't you find that crop is limiting?" or "I really like the way my 50mm lens makes my images pop on FF" etc, etc. The not-so-nice ones will patronise you with comments like: "Pentax don't make a full frame, do they?" I've always got a comeback ready (generally satirical and often feigning servility - if you've ever watched Blackadder, you'll know what I mean), and I've been even less inclined to let things pass since I got my K-3 and a collection of good lenses, not to mention having the Pentax 35FF appear on the horizon.
In its own way, all that is a form of bullying, subtle though it often is, and like any sort of bullying, you have to stamp on it when you see it, so I wouldn't minimise it by dismissing it as "having a complex". Helping others to deal with it is a far more useful thing to do.