Impressive....

A beautiful set of Tim Bobbins....

If you liked the 10-20, you'll love the 8-16!

Super crisp set of images...

I like the framing, it suits the photograph well...

Fabulous photo's, especially the Long Tailed Tit...

Or how about this:-https://www.pentaxuser.com/forum/topic/pentax-smc-da-18-250mm-37821 link looks like a good buy!

This might help link

Regards.....

Hello 456, I hope you won't mind or take offence if I suggest an alternative. Like yourself I wanted a smallish shoulder bag for convenience instead of lugging a rucksack around which isn't always convenient or easy to access quickly. I happened on this link which at £14.99 delivered is just fantastic value and the bag itself I think is just superb. At that price it won't break the bank either, plus, you get to keep your 400aw for when your wrist mends and If you don't like it you can always return it.

Best wishes.

PS I don't have shares in that company....

For several weeks I contemplated the purchase of a Sigma 10-20 but was also drawn to the Sigma 8-16. After reading umpteen reviews and feedback from other users, I went for the 8-16 and at the price SRS currently have it on offer at it's a steal. I love it and have had no regrets whatsoever about buying it and my feelings about it seem to mirror those of other owners. I visit lots of churches where it comes into it's own and opens awesome opportunities. However, it is very much a horses for courses lens that represents a substantial investment and therefore not something I would recommend just for occasional wide shot.
If wide is your thing then you can't currently get wider I believe than the 8-16. If you haven't done so already, take a look at the Sigma 8-16 lens club over at 'Pentaxforums.com' link I'm sure here you will find some inspiration. My other recommendation would be to go along to a camera shop that sells these (such as SRS if you live close) and try one on your camera, or better still, hire one for a week for first hand experience.

Just my thoughts! Good luck.....