K5 vs. D7000 & EOS60D

LINK .. none of those have glass in them.

Compared with the high ISO performance, I'm much more concern about the focusing speed and accuracy of K5.

Agreed as seen Mike but what about infinity focus?

Need to let this thread get back on topic?

One thought, if people wanted to use Pentax lenses on Nikon or Canon etc. It means no lens coupling and is only any good for Pentax lenses with aperture rings.

Why not just buy the Carl Zeiss manual lenses with the right mount?

Best regards

Almost any lens will fit on a Canon because it's registration distance is small at 44mm.... Pentax is 45.46mm so no correction lens needed.

Nikon is 46.5mm so a correction lens is needed for infinity focus with Pentax lenses.

Good stuff. So the Minolta registration must be such that it needs a lens.

That's sorted then. Only leaving the question of why would anyone want to use Pentax glass on a Nikon, Canon or Sony?

With the exceptions of my 70-200 EX Mk1 and Bigma I don't use third party glass on my DSLR's.

Best regards

Been out with the Bigma on the K-5 this morning.
AF is still slow but then its a big slow lens anyway ..

Minolta shouldn't need a lens for Pentax stuff. Minolta AF is 44.6mm
It does need a lens to use Minolta MD lenses they were 43.72mm.
The last one I saw was about £200 Ouch!!!!

is your bigma slow then mike.

You can compare them now http://www.dpreview.com/reviews/canoneos60D/page19.asp

The K5 does do it better than the D7000 but the photos look softer.
The 60D looks sharper then those two and the 50D looks even sharper.
Might it be the lens that's lacking?

Also the file size of the JPG from the K5 is very strange.
It's even smaller then the 50D....

there have been some bannings, and disputes goin on between depressing review and the other pentax forums...
one thing I read was a complaint that dpreview skewed thier test in canons favor by shooting thier tests at different apertures that had the canon shooting images where (previous dp reviews tested) the lens was at it's best aperture, and the Pentax and Nikon were shot at different apertures where dpreviews previous testing showed the lenses were not at thier best...
Who knows?

Yeah you're correct, they used f/8 on the Canon and f/9 on the other lenses.
I believe the use the FA 50 f/1.4 that one peaks at f/5.6 and then gets worse.
The nikon 50mm seems to preform better at higher f-numbers.

They should have used the Sigma 30mm or 50mm and on the same f-number for the test.

failing that, they should have shot each lens at the f-stop where thier own testing shows the lens's best image quality... or even just split the difference and shot them all at the same aperture part way in between so they all had the same handi-cap like say f 6.3.

If you download the Pentax and Canon JPEG's and have a close look there's some strange stuff going on. Some detail is simply missing on the Canon image! Corner sharpness is also better than some stuff in the middle on the Canon?

I need to re-look at mine when I get back at Xmas, maybe I was sold a duffer? Bought it from Tri-State back in 2004.

Best regards

Well the limited lenses are unique I can see why Nikon, Canon or Sony might want to use a FA limited.

I believe only for leica Pentax made the 43mm limited.