Thanks Dave, the 16-45 dosnt really appeal. As I think I have most of the range covered by my kit lens. Which for the record I feel takes superb images. When I get it right. Also Nice to know the build quality is spot on.

Got to say I also find the K7 to be useless above iso 800. But I would not swap it for anything else. I love it.

Thanks Milamber. I had no doubts on the likelyhood of it being a great lens. I was wondering if people considered the faster lens with HSM a worthwhile upgrade to it. From what I have read it is silent focusing. I think I could live with noisy. For a saving of approx £100

Thanks John. Thought you would suggest that one. I had looked at it. Im sure its a superb lens. But discounted it. On the grounds of its £800 price tag.

Hi all. Just thought I would consult the knowledge database available here. After trying to use my kit lens at its 18mm wide point. I have found that this is not really wide enough. So Im in the market for a wide angled lens. Not having any experience of these. Im at a bit of a loss. I want to use it to photogragh buildings and general architecture. The one I have been considering is the Sigma 10 - 20. This as you know come in two forms. The faster Hsm version and the cheaper ex version. Does anyone have any experience of these in terms of image quality ? Is the Hsm version worth the extra expense? Do you think there are any other lenses I should be considering ?

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Nope ive never adjusted AF either. But I thought about it...

Thats such a big well done for Shaun.

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I have over the past year or so. Read the argument many times. I think it is now time for someone to prove that the Pentax battery. At more than seven or eight times the cost. Is indeed any better a performer than a cheaper third party one. Thus giving justification to its price. Rather than just stating that because the competition are cheap they must be inferior. I own both have have not witnessed any discernable differences between the two. I quite often take my camera out on a day shoot firing many shots. Or leave it a while before returning to it. In my opinion only the foolhardy or rich, would look to the Pentax brand when replacing.

Though I will add i rarely use live view, but quite often use the lcd screen to view results of images,