That's ver interesting as it looks as though there is a flange that extends proud of the mount and locks into the lens release pin. This would mean that the lens release would be operable, unlike the Pentax Adapter K.

However, this is not really very useful on two counts.

Firstly, the lens will be mounted further away from the film/CCD so infinity focus will be lost.

Secondly, whilst it's tempting to think that oone of these would convert a lens to K bayonet and mean it could be attached and detached more easily, I suspect the lens will tend to unscrew rather than the bayonet turn. So we would be no better off.

IMHO you would be better off buying a Pentax Adapter K, available new for about £15 GBP and probably on eBay for similar prices.

Hope that helps.

The obvious conclusion.

I did have a Tamron 90mm f2.5 Macro at one point. It was manual focus.

The only problem was that compared to the pentax lenses it was so enormous and so heavy. Quite out of context with all my other lenses, so I sold it on.

In terms of performance though it has an excellent reputation. I know a professional who for a long time bought a new one every couple of years. He basically wore them out. He never had to replace his Nikon or Olympus lenses though, so I suppose that tells us something.

Yes, that is unfortunate, but I did not want to point the finger at any individual, so the whole thread went as a consequence.

It's very rare that any intervention of this sort is necessary.

As far as I am aware only two threads have ever been deleted and it has never been necessary to ban any member.

Compared to the incredible sensitivity of some other forums, where almost any deviation is jumped on instantly and temporary bans are routine, things are very relaxed around here.

I can't be definitive about the particular heads you have purchased, but I have always used a simple non-dedicated hotshoe adapter.

It should be possible to pick one up for just a few pounds. There are probably dozens of them at camera fairs, and maybe something on eBay - I haven't had time to check but it must be worth a look.

I've just deleted a thread because the comments were getting to be just too personal and we don't need that.

Do please remember that we all deserve proper consideration and if we get too over excited it can cross the line from being reasonable criticism to being personal.

There is a difference between being honest and crossing that line and degenerating into personal attacks.

I've made the point and am not going to debate moderation.

It is not acceptable to try and restate the criticisms here in the guise of such a debate. Therefore I have deleted some of this thread and have closed it.

Excellent judging and excellent winning picture, well done!

Lilly, please start a new thread for your Weekly Competition, actually #9, doesn't time fly?

Pentax *istDS
SMC Pentax-DA 50-200mm