Hello paulkane1, and welcome to the forum.
Out of curiosity I googled "Bosina" just in case there was a place called Bosina which I hadn't heard of, but it just came up with 'Bosnia-Herzigovina".
I tried on Yandex, (which is a search engine I found out about a couple of months ago), it came up with several "Basina's", but it did come up with "Robiola Bosina" which seems to be a type of cheese.
I don't think you'll be visiting a cheese, so I presume you mean Bosina-Herzigovina. I've googled 'good camera stroes in bosnia', and I've got a link for you, but I've no idea if the info is any
good or not. You'll have to judge that yourself when you get there.
http://welovebudapest.com/shops.and.services.1/ultimate.guide.to.budapest.s.best.camera.shops.and.photo.servicesHope it helps.