See the edited version. Refresh!

G

There are innumberable threads on this issue, if you care to search.

But briefly, all Pentax K lenses fit on all Pentax DSLRs.

The K10D will work with all of them, but has problems metering with the early lenses (M & K), and has to be used in manual exposure mode.

The good Pentax K lenses are marked SMC Pentax, and then there is a suffix as follows:

K - Manual focus, manual aperture
M - Manual focus, manual aperture
A - Manual focus, auto or manual aperture
F - Auto focus, auto or manual aperture
FA - Same as F
D FA - Same as F, optimised for digital
FAJ - Auto focus, auto aperture
DA - Auto focus, auto aperture, digital only

I suggest you stick to F and downwards, unless you are happy with manual focus, in which case try A. If buying a zoom, the more modern the better, though there are one or two good, old zooms.

G

PS: Please note that by convention the earliest K-mount lenses are called K lenses, but in fact do not say K on the lens.

PPS: http://stans-photography.info/

PPPS: http://www.bdimitrov.de/kmp/

PPPPS: Of all the Pentax AF long lenses, the best value is the F 1:4.5 300mm

PPPPPS: http://www.digital.pentax.co.jp/en/lens/ Look at the roadmap.

Thanks Matt!

I'm just off to the airport and will be away until Sunday. Although I wil have email access by Wednesday (I hope - I have a job to do here) I won't have access to my machine and some details will need to be looked up.

So I'll send a pic and some details in a week.

Cheers

G

On my machine, the stripes usually occur on the same images (PEFs in Silkypix), and when processed will appear on the resulting JPEGs.

But if you load Silkypix on another day, the stripes will have changed colour and position.

Someone suggested bad memory. The machine is three years old, so if I change the memory I might upgrade the motherboard and processor at the same time.

What I need is the massive mind of Matt to be applied to this problem. I don't really want to upgrade the machine if it's not necessary.

G

Well, problem solved - or at least narrowed down, and the K10D would appear to be innocent.

This thing has been troubling me for months. I have been using my *istD while scratching my head. I didn't return the K10D because a small voice told me that the problem might lie elsewhere, and I didn't have time to really troubleshoot things properly.

Anyway, I decided that when I got my 16-50, I would get a second K10D body. I like to have an identical back-up body, and at today's prices, the time had come.

Imagine my horror when the new body produced the same problem. The chance of me being the only person in the world with this particular problem, and for it then to appear in a second body, was pushing coincidence too far. So I did what I should have done all along, and loaded Silkypix onto my work laptop.

And, no problem.

So I now suspect something within the guts of my main machine. When the lines appear in Silkypix, they are saved to a JPEG. But I've also discovered that the lines don't always appear when viewing a particular PEF.

So it's weird. At least it's not the camera.

G

None yet. I've been rather constrained for the past couple of months, and haven't yet got my act together sufficently to get the wretched camera back to SRS.

However, I have established one thing. The problem only affects PEFs (and perhaps DNGs, haven't tried). JPEGs are fine. I have upgraded the firmware, and have ruled out problems with card readers, etc., by using different ones.

Memo to self; get down to the PO.

And thanks for asking.

G

I've been so busy with a certain Manx music festival that I haven't had time to return the camera to SRS. However, I am about to do so, having tried new SD cards and a new SD card reader, and still got the same result.

Thanks for asking; I'll keep you posted.

G

I haven't yet been able to do any further tests, but will report back when I do.

Thanks for the suggestions.

G

I would suspect that too if the stripes were always in the same place. But they are not.

G

Thanks for these suggestions.

At the moment I can't find my camera PC cable (never used it, or expected to), and nor can I find another reader. A faulty reader is not something I expected. Is it likely?

I haven't tried with JPEG, though I suppose if it makes a difference it might suggest that the fault is within the camera. I shall check that.

I also need to check with my other card, but haven't been able to lay my hands on it yet. It's somewhere in the huge pile of unpacked stuff, along with cable and reader.

The problem occurs in both portrait and landscape mode.

And amazingly I don't have go-faster stripes painted on my 31 Ltd, so at least I can rule that out.

G