I would like to know which lens is better to buy for me needs. I have a nikon d750 and only a 50mm prime. I find my self lacking of field of view inside or when I am close to subjects. I would like to take photos of indoors and landscape. The 20mm has a arger angle of view but is rated less sharp than the 24mm 1.8g which one do you advise me? I was also considering the 18-35 3.5-4.5g but i find my self in low light situations at time where the 1.8g seems usefull. Dxomark rated the 24mm 1.8g with better transmission than the 20mm 1.8g. please tell me which one do you think is the best suited for my need. I will be imencely greatfull for your advise.