Originally posted by jsherman999 Focus errors are usually more clearly seen on aps-c (same # of pixels) because the same image is magnified more.
At any rate I do think the D800 left AF-point issue is clearly seen here.
This also highlights another peripheral purchase (SW) largely made by FF shooters - a snapshot into a demographic Pentax is still, for some reason, waffling on.
It's not like we aren't used to it. It's not like they've been a decisive, out front innovative company for the last 40 years. My buddy was showing me images taken with AF at 6 fps on his F4, almost before Pentax had even released an AF camera. The sad thing to me, was that they tried to release an FF, failed and gave up for 10 years. The technical issues they couldn't solve, had been completely resolved 2 years later, the 8 years since then, it's hard to make an excuse for them.
I guess for a lot of us, we are with Pentax because we've grown used to waiting for stuff, that everyone else has, and don't feel any urgency. For guys like me, it's FF, ho hum... I might buy one, I might not... definitely not enough of a concern to change brands for. The question for me is, is Pentax creating that kind of customer among the younger generation.
What demographic is that? IS it the "patient beyond belief", or the "stubborn beyond belief " demographic.
How exactly do you court that demographic? I'm lucky, APS-c is good for me.
---------- Post added 10-29-14 at 11:49 AM ----------
Originally posted by ElJamoquio That was the point.
---------- Post added 10-29-14 at 08:32 AM ----------
That's a convoluted, misleading, and false statement IMO.
What's your thought process?
Mine would be that the further you project from the optical centre, the more magnified any mis-alignment will be. Do I need to draw a diagram, or can you conceptualize that?
Think of a mis-aligned lens tilting the focal plane. Then picture the focal plane as containing one APS_c sensor inside a full frame sensor. in the area beyond the edges of the APS-c sensor, the effect of mis-alignment will be more pronounced because the light is travelling further from the optical centre of the lens.
Unless of course your lens is designed so that all light comes out of the rear element completely at right angles to the focal plane. I've never seen a lens like that but I suppose it's a theoretical possibility. Naw, it still wouldn't matter. Misalignment will still be more pronounced at the edges.