So far I've had the Pentax Z750, A20, T30 and now P70. All have been fine, but with the caveat that it takes quite a bit of care to get the maximum quality out of compact cameras.

This was also true of Fuji compacts I have had in the past.

There is no rule about re-using a picture, but there is one about not replacing a picture once we have posted.

The reason is to not have someone replace their entry in the light of viewing those that come afterwards. It would be very unfair to have someone upgrade their entry near the end of the competition week, for example.

However, it is up to this week's judge to judge and/or exclude any entries as he or she feels fit, within the spirit of the guidline rules.

Was it a delay in sending or a delay in the post? Does your 10 days include weekends or did you mean 10 working days?

For most people, these issues will never arise, but when we look very closely at the output from these cameras they do have very different characteristics. Just taking noise in isolation, if that is the primary concern then the K-x will be a better bet that the K7. In its day the K100D would have been better as regards noise than the K10D, and Pentax happily said so.

By the same token a 7MP compact will have less noise than a 12MP one.

This is no big deal really IMHO as there are other factors involved that may be more important to a given buyer. As I'm very happy with our K20D bodies we don't currently feel the need to upgrade at all, but if we did then the K7 would be the choice.

Our priorities do not involve noise - it's low enough in all the options - but we would need to replace the two K20D and the K10D camera at the same time, because working ergonomics are very important. All the cameras (and accessories such as batteries) need to be the same. The K10D and K20D fit together seamlessly, but the K20D and K7 do not.

So when we can afford three K7 bodies.....

There are so many competitions now that I wouldn't be surprised if some images are repeated. Just as competition themes might be. Always better to find something new if possible though.

I don't really see a bit of additional information as an issue.

http://www.srb-griturn.com/index.asp

The definitive adapter supplier, either off-the-shelf or custom made (at a cost) they will be able to advise you what is possible.

Hope that helps!

It's relevant to any new users who may not realise that.

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Ultimately you can't. Normally 8 bits/channel will be fine. From a quality point of view, image libraries like fotoLibra do not want 16 bit images, but prefer 8 bit images because they say the potential difference in quality is not visible in practice.

You can do some manipulation in 16 bit, but eventually will have to revert to 8 bit anyway.