ISO 160 - that shot is straight unedited. I should be able to pull shadow detail out of that pretty bloody easily but on every shot there's this posterisation, I have never come across it before and I spend most days editing pics from my K5. I really am baffled

Seriously John, that isn't the question I asked is it? This shot is an out-take from a photoshoot but best exemplified the effect I was talking about.

I have taken over 3000 shots with my K5 recently in and out of the studio and I have never seen anything like this before.

I did a few shots of a young lad today with his Grandma and I was very unhappy with the results.

The set up was very basic, a single flash off camera and a Pentax K5 with the Tamron 17-50mm F2.8 lens and shot in RAW 16mp.

The picture attached is a 100% crop from part of one of the photos - as you can see in the right of the photo in the shade is huge blocks of single colour i.e. dark red. How on earth did this happen in a RAW file and the bit depth that they have? I have shot thousands of photos in the last couple of years and not one has had this effect on it. The trouble is, from today's shoot, EVERY photo has this effect in it within the shadows, what on earth is going on?

Any help gratefully received.... bewildered.

Hi, my mate went today buy apparently it's shut down.

Thanks John.

So can anyone tell me a decent repairer please? Preferably local to Yorkshire.

Fatspider, it says No Memory Card when you switch it on without a card.

We have tried several different cards of different brands.

Yes we have tried both those things. Any more ideas?

My friend's K10D says Memory card Error when you switch it on. We have tried various different memory cards. Upon googling the problem it seems that it is usually associated with dropping or banging the camera, this didn't happen in this case.

He was shooting some outdoor shots and when he took the last one it gave a message saying that the image failed to save and after that all he got was memory card error.

I have read somewhere that there is a switch inside the memory card holder that detects if the memory card is set to locked or not and that this switch can sometimes stick in the locked position and can be freed with a prod with a cocktail stick.... is this true?

In the worst case scenario and it's a hardware issue where is the best place to send it (Yorkshire area if possible,) my mate isn't working and cannot afford expensive repairs by Pentax etc...

Thanks for any advice.

Jay

The exposure on the 2nd (non-flash photo) according to Lightroom data was 1/160th sec at f4.0 and ISO 1600

The lens was the Tamron 17-50mm f2.8 (not the Sigma as I mistakenly stated earlier)