Good idea, Sam. I checked the price for a ND filter to fit my 105mm diameter camera lens - £219! It sounds as if I'd be better off trying to hook up my camera to hubby's telescope and buying a £15 telescope ND filter instead.
There's a local
astronomy group near us, although when I say 'near', nowhere in Lincolnshire is actually near anywhere else. It's all relative. Anyway, I might visit them and see what they have to say.
Just for the record, I am most definitely
not getting into astronomy - I just want to take pretty pictures.