The 17-70mm is well known for developing the same fault. That problem is the SDM motor.

Chris did say in his website post something major is coming in April.

I saw the filter, I just think 99% of people will click on Pentax lenses and see everything jumbled up.

Just looks a bit messy to me.

Can I make a suggestion Chris ... the 645 lenses either need their own section or grouping together at the end. Just looks a bit messy to me.

I sold my 18-135mm to buy this. Much better lens in every way IMO.

But then I would say that as I'm the one selling it

Pentax HD PENTAX-DA 16-85mm F3.5-5.6 ED DC WR Lens in excellent (dare I say mint) condition, not used as I no longer have a crop Pentax body and from the looks of it I'm not likely to have another.

Comes with front/rear caps, hood and box (which is a bit tatty) £320 incl UK postage.

I'm pretty sure the lens correction data is written to the raw files which is why I have them switched off, they definately slow things down.

Like that a lot .....

First thing I do with a new camera is turn off everything that involves some sort of in camera processing because it slows down fps/af speed/read/write speed. Personally I think ISO 6400 is pushing any crop body, infact my K-1 is limited to 6400 except on rare occasions.

I have found the latest noise reduction programmes such as topaz and DXO (which I use for my processing) can help a lot with noise these days.

Enjoy your K-3II though, you will find it far better than the K-5 although it's a shame about the K-3 (III) although not entirely unexpected.

Well my next aquisition certainly won't be a used DFA 24-70mm f/2.8