My new K-x is front focusing, now what? - Page 2

*skid2964* · 10-31-2009, 04:45 PM

Originally Posted by jerrymouse

Heh, I rarely have the text in focus with my FA 50/1.4. Yours is almost spot on. Be glad

Im a damn OCD perfectionist type.... trying not to be a slave to it!

*Andi Lo* · 10-31-2009, 10:19 PM

That degree of FF is okay. Try it out with different focal lengths on the kit lens and see what happens

**Marc Sabatella** · 11-01-2009, 01:03 AM

Originally Posted by ytterbium

LOL i was about to point out that the skid2964 has obviously cropped the image to show the text/scale part better, but Marc was actually right and the test was performed incorrectly.

My clue, BTW, was the perspective of the vertical lines.

mcjm78 · 11-01-2009, 04:01 AM

I just adjusted my Kx with -20um, as I was getting a bit of FF from my Tamron 70-200mm at 200mm f2.8.

I used Sigma 50 1.4 to adjust focus. Was initially going for -30um, but when I use f2.8 on the 50, it BF instead. So -20um is the best solution so far, and I still get a slight FF at that adjustment. Then tried the 85 1.4, and it still looks spot on.

Testing using wide aperture lens is most effective I find.

EricT · 11-01-2009, 11:16 AM

Looks spot on to me! Another test you can do is taking three books or DVD covers, and set them up like this:
\
| <-- Camera
\

This will remove the need to have 45 degree angle, and I have found it easier to adjust focus this way. By the way, does the debug mode work with K-x as well? I'm using it on my K10D with great success.