I don't know why you are assuming I was focusing in the dark!

I am not taking that dark! I'm on about in my kitchen with all the lights on!!

Haven't got time to read all that now but I read the "Conclusion" and it pretty much says it all.

I am already on 1.03 and therefore it hasn't cured the problem. Googling it finds loads of people with the same issue. Proper cheesed off right now.

Is that a firmware that is yet to be released or one that has already been released? I am on 1.03

Had my K5 for a few months now but haven't used it a great deal compared to my previous camera. I have noticed that I have struggled to focus on poorly lit subjects.

I've spent the last 4 hours with the camera on a tripod and photographing the same sheet of newspaper over and over again. My K5 tends to front focus on all my lenses apart from the SMC FA 1.4 50mm. I fine tuned the focus so that it was focusing correctly but when I apply a brighter light source to the subject rather than the tungsten it now back focuses.

I'm really peed off about it and feel like selling up and moving to Canon.

How can I get round a problem that changes under different light intensities?

thanks Chris, could I trouble you for the high res copy?

Well I have just tried a different laptop and firstly I have to say that on the jpg images I have posted on here the effect is not as noticeable as on my other laptop (calibrated screen apparently.)

However when I load the RAW into Lightroom the effect is still there but bizzarely disappears when fill light is added. The shadows aren't clipped in the areas I am talking about and I can presume that a RAW file will not run out of colours even in shadow areas so I can only come to the conclusion that it's a problem that monitors have in that colour range. I just have never seen it before.

By the way, these were outtakes before I had the flash and ambient light balanced in correctly but I liked a couple of the poses so was seeing if I could salvage them.

I have uploaded a RAW file here:

link

Another example - large block of solid red colour under the eye.