It is really important that the word KoaSound is not broken up and must have a capital K and S.
I really like the idea of a very 'urban' look to the logo, but please avoid using the camera iris as a concept, there's loads of photographic logo that look like that.
Think about street art, urban decay, rust, splash brushes, stencils, vintage, faded and hipster styles as an influence on your design. If the logo looks a little aged, that'll be cool.
I've selected a lot of logos I like in the brief, but it would be cool to see 2D and maybe 3D designs.
A version will need to be created for Favicon, Instagram and Facebook.
Please visit the site http://www.koasoundphotography.com. You'll see that I use a Canon 5D Mark iii and a 50mm lens and this is the classic photography combination that gives the work a lot of 'bokeh'.
If you have any questions, get in touch.
I've found a few online logos I like, i hope that will help with the creative process.