Ralf, I have a Tenba messenger bag like this... http://www.helixcamera.com/CameraBags/Tenba/messenger/638234.html
It is nice for travel as it can carry a laptop (not needed for your field work). It has a closing flap, but zipper access thru the top and plenty of pockets. I have it about half full (60%) with a Voightlander 125/2.5 macro, F70-200/4-5.6, DA16-45/4, and AF540FGZ plus instruction books, spare batteries & charger, and all the other paraphernalia I can think of. There's still room for the K20 as a back-up body and the Sony laptop on the plane. I don't usually wear it, and surely wouldn't with the laptop in it (too heavy). But I have worn it and worked out of it with a lightened load. The top zipper gives great assess to the whole bag. Regards, Bob S. 2009/7/15 Ralf R. Radermacher <[email protected]>: > I'm looking for something to carry the K-7 and 3 to 4 prime lenses plus > the usual selection of accessories, batteries and what have you. > > I'm beginning to have back troubles with my normal photo bags and I > don't like backpacks, especially since, where I take my photos, there's > often no way of putting something down on the ground without soaking it > in mud and oil sludge. > > That's why I'm currently looking at the Slingshot series of bags or > anything similar from any other manufacturer, as I understand, that > these are carried like backpacks but can be accessed without putting > them down on the ground. > > Anyone here having practical experience with this kind of bags? > > Ralf > > -- > Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany > Blog : http://the-real-fotoralf.blogspot.com > Audio : http://aporee.org/maps/projects/fotoralf > Web : http://www.fotoralf.de > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

