Pentax FA 35mm front/black focus issues?

So my FA 35mm came today and I have given it a try out. I'd read that it wasn't great at f2 but at f2.8 it was sharp so I was disappointed to be having soft images at f2.8. In fact, sharpness was only at f5.6.

I don't know a lot about focus adjustment as I have never had to do it so I went into the camera menu and located it. To make it sharper I've had to dial it in with +10 which I think is the maximum you can adjust it to.

Just wondering if anyone else has had this issue with this lens or if I'm unlucky with my copy and it needs to go back?

Thanks

No experience of that lens Gareth, but as far as AF adjustment is concerned i need a +10 on a few of mine so as long as you get accurate AF at that setting I would not be concerned.

The degree of AF adjustment needed will always depend on a camera/lens combo. A camera can be spot-on but the lens needs a lot of adjustment or vice versa. The majority of cases will fall between the two.

Whatever method you use to do the AF test make sure you do a "best out of 10" attempts before deciding on your final setting. A single AF test will not necessarily yield an accurate result.