I have made some milky way photos and I like to do more of night shooting. I used my 18-200 tamron kit lens, as well 35 mm 1.4 (this didn't gave me enough wide angle) I am looking on the market what is available and what can I get. I was thinking some white angle lens with smallest F stop possible according to the cash provided. What would you use? by the way, can somebody tell me if the nikkon 1 lens can be used on nikon DX cameras...one of those can be something too, or no?