The Nikon 20mm f/1.8 G is shaping up to be the best astro-landscape lens ever!

I’ve been watching as the reviews start to come in for this exciting new lens from Nikon.  So far, the results are extremely promising!  Consensus being: this lens is highly optimized for astro-landscape work, as it ought to be, with very low vignetting and almost zero coma, the two things were almost every other lens falls flat on its face.  The one thing remaining for me to determine is, how this lens handles field curvature at infinity (star) focus.  Pretty much every lens ever made wider than 50mm has at least some issues with field curvature, either right out of the box or at least after a year or two of heavy use. Continue reading