Originally posted by ScooterMaxi Jim Really, the K-3 is not an "older" model. In fact, it is current.
Sigh..... where did I claim that?
Originally posted by ScooterMaxi Jim You cited a commentary from 2009 comparing the higher-end Canon 5D with the Pentax 20D. That hardly constitutes a current argument.
I suggest you read through the entire article before replying, as I think you haven't. There is no comparison between the K20D and 5D in the article.
Quote: You've offered a lot of impressions. I had the Canon 5D, and it certainly was adequate regarding AF - but at only shot 3fps.
You know, that's actually interesting - the fps I mean. I went to a racetrack once for a motor race. I took my 8.3 fps K-3 with the high-end 60-250. 8.3 fps may sound like a lot, but in reality, I only got maybe 4 or 5 effective fps because the AF couldn't keep up. Now, that's still more than 3 fps, and yes, 3 fps is slow. But I'd much rather have a 6 fps camera where the 6 fps can be utilized because the AF (body and lens) are able to keep up, than an 8.3 fps body where the AF can't.
But, you know, let's turn it around. I gave a link to an article stating that Pentax AF is worse than Canon. You can make some arguments against the article, and you have (not that I agree with every one of them, but ok). But, if Pentax's AF really is as good as Canon's, I would think there are OPPOSITE stories as well, of e.g. a person having had both platforms and saying the Pentax focuses faster. Maybe I could shoot holes in that hypothetical article too. But I really wonder if that article exists in the first place. Because I don't think many people have that experience.
Originally posted by ScooterMaxi Jim The build and image quality above 400 ISO was better on the Pentax 20D, but the AF was so marginal shooting sports that I had at least as good an outcome shooting manual focus. That changed significantly with the K30, and further improvements are evident in the K-3. The K-3 is in every way superior to the 5D (as well it should be 6 years down the road), and that most certainly includes its ability to shoot sports - even indoors with a slow lens.
That could very well be. I've heard the 5D is not known for the fastest AF. But if you say the K-3 should be faster than the 5D, based on how old it is, wouldn't you also say the K-3 should be faster than the D700? (which in my experience it isn't, at least not with that 24-70 lens on it)
Originally posted by ScooterMaxi Jim The point is clear that for the rest of us - with lenses designed to track quick action - we have seen a huge improvement and have gathered some fine action photos. For most of us, action shooting isn't our main need. If it was, we (still) would be shooting Canon, putting up with the lousy sensors, marginal build, bulk, poor ergos - but loving the many great long optics available and AF capability.
That's another thing - the AF speed of lenses. I have touched on this earlier. I don't like the new fullframe lenses for me because of their size and weight. So for me it's APS-C all the way, but rather good-quality APS-C. So I have DA* glass. With SDM. Slow SDM. My 55-300 focuses faster than my 60-250. That does not make any sense at all.
Meanwhile, Canon and Nikon have good-quality (from what I read and saw) not-so-fast lenses (in terms of f-stop, which makes them smaller and lighter) that focus faster, like the 70-300 4-5.6 L IS USM or even the 70-300 4.5-5.6 VR. I'd love to have such a lens for Pentax, but it doesn't exist. That's why I have the 60-250, and the AF annoyances that come with it. I love my copy of the 60-250 though, because it's razor sharp. In fact, that's why I'm probably going to hold on to it. Because an excellent copy of a lens is worth something too. But the AF.... yeah not so great at all.
---------- Post added 11-14-2015 at 07:30 PM ----------
Originally posted by thibs Starbase, test your 16-50 on your older cam if you still have one.
Then convert the lens to screwdrive and test on the K3.
I bet you'll notice difference already. The 16-50 af speed is too dependant on the slow sdm drive. No camera is going to change that.
I don't have my K100D Super anymore, but I can imagine that the rotational speed won't be much different from using it with my K-3, since the motor is in the lens. However, I remember that the K100D Super used to micro-adjust more, even stopping a few times "along the way" to finding correct focus. That takes time too.
I have had my 16-50 converted to screwdrive when the SDM failed (got a fully functional 16-50 afterwards so I sold the converted one). It didn't notice any speed difference on my K-3.
---------- Post added 11-14-2015 at 07:52 PM ----------
Well, anyway, we'll see what this new technology brings (if it brings anything; at this point it's only a patent). I'm just done getting my hopes up and then finding out it's not as good as I thought it would be.