Hello there. I wonder if you can help (I'm new to this so please don't shoot me down in flames if this has been asked before!). I'm after a pair of lightweight binoculars for walking - I currently have Opticron poro lense 10 x 42 (I think) which are fab but give me neck ache after a while. I have a budget of approx £300 - £350 to spend. Any ideas? Thanks