That is clearly not what is being argued, so do please at least quote accurately.

As for SD cards, I would like to see tests on card errors to see if larger capacity cards do lose more sectors than lower capacity ones. All cards have errors to some degree. I'd also like to see some data as to whether faster cards have more errors than slower ones. As far as I can see there isn't any research easily findable.

Now ken is being misquoted and I think it's safe to assume he takes more than one battery on a job.

FWIW, I use three Pentax batteries per camera. These are rotated strictly in order, so the 1000 or so cycle life of each battery gives quite a long lifespan to the set of three.

On a week's holiday I might expect to start on the second battery with the K20D and just maybe the third with the K-5, the latter seeming a bit more power hungry.

On a wedding I would be unlikely to break into the second, but there's plenty of reserve backup there if needed.

Belt and braces is not scaremongering, it's assessing risk sensibly. There are no excuses if we are being paid for work.

Ken beat me to it, so +1 on that.

Try SRB Griturn who make all the adapters known to mankind, and probably some unknown as well.

The predjudice isn't against RAW shooting, it's against people being made to feel they have to because they're doing something inferior. The "serious photographers shoot RAW" is clearly not true, but more importantly leads some to areas that detract from their enjoyment. They don't need it, but are made to feel guilty that they aren't doing the right thing.

It's a trap of digital photography and it takes confidence to stand up and say "I shoot JPEG" or "I use Pentax" or "I enter competitions with images I like and if the judge agrees that's just a bonus". The rest of the world can do its own thing with pleasure, but let's understand why we do what we do.

As for Aura, she asks basic questions, but has come along leaps and bounds over the past months, producing far better images than when she started. Developing that skill might be more fun that becoming distracted by RAW processing.

I'll give you an example. Our friend was a beginner and she became a good photographer very quickly, as she has a good eye. Then she started trying to double guess what judges would like. She'd not take pictures she wanted because she thought the judge might not like them. All the fun and spontinaety went out of her photography. Until she realised what she was doing and stopped. Then it came back and she now has a CPAGB and AFIAP to her name. She eventually came out of that trap.

So let's not assume that Aura needs RAW capture, perhaps now she could tell us what she thinks, now that the opinions have been hammered into the thread?

www.ephotozine.com has general forums covering all marques. We specialise here on Pentax.

It looks very good indeed, a perfect partner for those lenses.

When it was tested, only the Pentax batteries actually met the specification. I wouldn't use anything else as without battery power the cameras are useless.

At worst, if a battery leaks or overheats (Lithium is having a hard time at the moment in terms of safety) then a non-Pentax battery would certainly invalidate warranty.

Some low cost batteries may be fine, but we have no means of telling which ones.

I think we're straying from the point. The question was in the context of the OP's requirements.

We need to think of what will suit the OP rather than get into yet another RAW vs JPEG discussion.

Depending upon what they are, they might surprise you.