I have the Sigma 18-250, which is built like a tank and has a zoom lock to stop lens creep. It needs to be at f8 to get the best from it, but it gives better results IMO than the kit zooms, which I have now sold. It is a touch soft however around 135mm, and at 250mm. At 18mm it's very good, but needs lens correction software to correct distortion. It's also quite heavy. However, I use it quite a lot, and when I am at work it tends to be the only lens I take with me. The inbuilt stabilisation is great at longer focal lengths as it gives you a stable image in the viewfinder. just remember to switch of the SR if you use the lens stabilisation.

Love the mono shot

First impressions are you could do with a wider lens.....

Well exposed though, apart from the third one

Lovely set, #'s 3 and 6 are my favourites. You should venture into the city more often!! Seems you have an eye for more than just the birds...

Thanks, I have done a bit of research, and it seems unfixable, as Pentax have changed the resistance on the centre pin. It seems a lot of different makes of flashes have this problem on the K5.

Hey ho, yet another K5 glitch to add to the ever-expanding list!

I have a Humax TTL flash, which worked fine on my K7, but when I put it on the K5, in TTL mode, it goes mad and keeps flashing, often before I have fired the shutter. It then keeps flashing like a crazy set of disco lights until I turn it off. Sometimes it seems to work normally (ie as a PTTL flash on its normal setting) when set to first curtain synch. It does not work in manual at all. It could be the flash, or perhaps operator error (I don't use the flash much; perhaps I am setting the cmaera up wrongly?), or is there perhaps something different about the K5? Any advice appreciated, we are having a party tonight and I would like to use the flash without inducing any epileptic fits!

Nice set, #4 is my favourite. NYC is a great place for mono shots

Had to look on Flickr to see it, great shot, love the colours.

Great shot, I agree about the crop.

I was given one of these lenses a few day, ago. It had a bit of fungus which I managed to get rid of, and it seems a really good lens. I am taking it up to the lakes today, so hopefully the weather will allow me to try it out properly!