Like to thank Pablo, Joseph, and Shun for their responses for the post I wrote yesterday. First of two parts: I am disappointed with Nikon for not having the fast primes (f/1.4 and f/1.8)that would work on my D50 in the lengths I am looking for (20mm, 24mm, &28mm). I have the Nikon 50 f/1.8 lens and have had great success taking indoor pictures without using ths flash. I want my next lens to be close to a 35mm film lens in length. I looked at the f/2.8 lens and I am afraid I will be disappointed with their speed compared to the 50mm 1.8 lens. Tell me if I am wrong that with all of the DSLR's Nikon is selling they are missing out on a growing market as newbies like me start to demand needs in this area. I keep reading the same statement; The lens is more important than the camera! There, now I feel better. 2nd part: If anyone out there has one of the "Superspeed Sigma Trio Lens" in the following lengths (20mm f1.8 EX DG AF), (24mm f/1.8 EX DG AF), and (28 mm f/1.8 EX DG AF) please give me your opinion on the lens you own. The 24mm because it fits my requirements in length (film 35mm) would be the one I prefer but have read enough concerning Sigma quality problems that I would buy one of the other two if they are a better quality lens. Sorry Nikon!