Yes. That was the basis of my post above.

Not my findings. The year before last I went to Shoreham and a few other shows with the DA*300 and the Sigma 150-500. If I could fill the frame with the 300 then it did produce a better picture than the Sigma, but if the subject was smaller or further away by a significant amount then the Sigma came into it's own. For example, the Lancaster is very large and will easily fill the 300 frame as she passes, but a more interesting picture can be taken as she turns at the end of a pass. This is the most obvious chance to get a bit of "topside".

There is also the consideration that the Sigma has the versatility of a zoom, so if something interesting appears very close, you don't end up with a picture of the pilot's nostrils.

The third advantage of the Sigma is that it focuses faster than Pentax lenses (mine does anyway).

Try both and see which is better for you. I started learning on seagulls as well.

I use AF-S on the K20 as AF-C is just not up to the job. I gather this has got better on the K7 and K5.

[Heretic] All very well, but look at the first comment.

Without the lenses, the best body will come to nought. [/Heretic]

I don't think the 4-5.6 is available with HSM in Pentax fit Techno. It doesn't suffer much for not having it though.

I trust you are receiving one for the excellent way you look after us Chris.

Good man. I think that was the idea. In Ireland many years ago they started charging 10p each and the number used dropped by something like 90%.

Last year I got the perfect position half way down the runway right on the rails (I paid handsomely for the privilege). Result?


[IMG]http://i217.photobucket.com/albums/cc222/Oggy3323/IMGP8224a.jpg[/IMG]

I think you committed a tactical error Tony. Had you avoided the child as I did you would be able to afford Waitrose. Saying that they are sadly going down market having developed their own "cheap and nasty" range at the expense of some of their nice things. I still think their business model is more ethical than other large businesses. It's a shame no-one wants quality any more.


(Looks around me bench) Not as far as I am aware.

That's only once too many.