The Sigma 28-45mm F1.8 lens is intended to be for full-frame what the Sigma 18-35mm F1.8 lens was for crop sensors. The focal ranges aren't identical but they're pretty close (in terms of FF equivalencies).
The price difference is significant as this new lens is $1350 but there was no way it was going to be the same price. This is still a reasonable price since it can replace numerous primes (28mm, 35mm, 40mm, 45mm). We really wish it went to 50mm.
This lens features 18 Elements in 15 Groups and weighs 2.1lbs. It has 11 rounded aperture blades and a 82mm front filter diameter. We are grateful for Sigma bringing up new lenses with focal lengths and apertures different from everyone else. So far the reviews and the feedback on this lens seem to be quite positive as long as you can get past its price (which isn't unreasonable) and size and weight (which again, for its specs, are also reasonable).
The price difference is significant as this new lens is $1350 but there was no way it was going to be the same price. This is still a reasonable price since it can replace numerous primes (28mm, 35mm, 40mm, 45mm). We really wish it went to 50mm.
This lens features 18 Elements in 15 Groups and weighs 2.1lbs. It has 11 rounded aperture blades and a 82mm front filter diameter. We are grateful for Sigma bringing up new lenses with focal lengths and apertures different from everyone else. So far the reviews and the feedback on this lens seem to be quite positive as long as you can get past its price (which isn't unreasonable) and size and weight (which again, for its specs, are also reasonable).