Pre-Ebay bump now at £42 delivered. It will be more on Ebay

Not sure if I can link to another forum, but this thread seems to be about the most comprehensive on the subject. Actual test shots rather than just speculation, though I realise different cameras might affect the results.

http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/31629-da-lens-full...

Thanks Algi

Interesting, but has to be taken with a pinch of salt. In his conclusion he says that "there are five primes and one zoom that can be used" when his chart lists eight primes which are compatible and no zooms. He also says that "the latest DA zoom, the DA 55-300, has shown to be usable on Full Frame" when his chart, and every other test I have seen says it isn't.

It's actually quite an important discussion. Unless prices (and camera size) drop dramatically I doubt I will ever get a FF camera, but if the murmurings about the potential demise of APS-C ultimately prove to be true then I won't want to have invested in a series of expensive lenses that I might not be able to use at some point in the future. I realise it's not the only factor in the buying decision, but given the choice of two lenses I think I would now opt for the one which is FF compatible over one that is not.

If it is, two-thirds of my three lens collection will be compatible

Sold to John. Thanks for looking.

Hi John. No need to feel obliged - happy to answer questions. I ask enough myself

I've just sent a pm

Will do

Hi John

I'm not absolutely certain about how rain resistant the outside would be. I'm assuming that it's not completely waterproof or there wouldn't be a separate cover included. It's well made with a shiny feel to the material so guess there would be a certain amount of protection from light rain/drizzle. It certainly rained a bit in Singapore last year and I didn't feel the need to put the cover on. I can't think of another occasion when it has rained when I've been out with it so I haven't tested it that much.

I've never had to use the cover either. I've just tried it without a camera in the bag and it was very easy to deploy. I don't have a lens the length of your 17-70 any more, but with the Sigma 10-20mm attached to the camera I can still reach in and pull the cover out with the camera in-situ. I'd still want to do this in advance of any heavy rain, though!

I think the newer version 2.0 has the rain cover taking up one of the pockets on the outside, if this is important to you.

I've wanted one of these for a long time, but typically haven't got the cash at present

Hi John

I used it with a Pentax K-r with Pentax 18-250mm attached and it fitted really well. I don't have a 17-70mm, but according to the specs your lens is only 8mm longer so it would fit fine. The holster does extend quite a long way if you unzip the base so would accommodate a much longer lens as well. Not sure about the diameter of the 17-70, can't find that on the specs, but the 18-250mm had a diameter of 75mm and fitted well. My Sigma 10-20mm has a diameter of 83.5mm and it also fits fine, if snugly, but the case is well padded.

It has room for a camera and lens attached of a total of about 20cm unextended and around 28cm extended so if you measure your camera plus lens from back to front that should give you an idea. My K-r plus the 18-250 was fine and I sometimes left the lens hood on and it still fitted. A shorter lens won't rattle about either as it's very well designed and takes the weight of the camera on an internal bolster.

It has a comfortable shoulder strap and also a very secure velcro closing belt loop - I've used it both ways.

It's a great holster, just no longer needed as I don't have a long lens any longer (just bought the 40mm pancake!)