Limitations of AVCHD?
Having for a long time used 3 chip HDV cameras with the material burned onto BDs with good results I moved on to considerably cheaper P&S AVCHD cameras (the HX100 &HX9 from Sony) also replacing my bulky DSLRs.
In 1080 50p mode and good light I did not really lose any quality, but in poorer light conditions the AF seemed to be hunting within the shallower DOF a bit more which a bespoke AVCHD video camera might not have done but I do appreciate the ability to only carry one camera for both purposes. The new crop of large sensor still/AVCHD cameras might respond better in low light but on the other hand have an even shallower DOF.
Any thoughts/experiences regarding this area? 4K is possibly approaching, but so far AVCHD/BD compatibilty for 4K seems very unclear.