Sigma just built the fastest 135mm full-frame lens to date: the 135mm F1.4 DG Art ($1,899) for Sony E and Leica L. On E mount it faces tough rivals like Sony’s FE 135mm F1.8 GM and Sigma’s own 135mm F1.8 DG HSM Art. That F1.4 aperture is the headline, but it also brings a clear tradeoff in size and weight versus the F1.8 crowd. To show what that means in real life, we prepared a true-to-scale size comparison of the Sigma 135mm F1.4 alongside four 135mm F1.8 E-mount lenses, first standalone, and then all mounted on a Sony Alpha A7R V, so you can see exactly what you’ll be holding if you go for this special lens.
(click on the images for a larger version)
Sigma 135mm F1.4 Art Size Comparison vs Sony 135mm F1.8 GM vs Sigma 135mm F1.8 vs Viltrox 135mm F1.8 vs Samyang 135mm F1.8 Lenses
The new Sigma 135mm f/1.4 is the heaviest and widest of the group -thanks to that huge front element which takes 105mm filters compared all others' 82mm- yet both the Viltrox and Sigma f/1.8 versions are actually longer. On the other hand, the Sony FE 135mm f/1.8 GM is the shortest of the group, and the Samyang 135mm F1.8 is the lightest.
Here is the version where the lenses are attached to rhe A7R V:
Sigma 135mm F1.4 Art Size Comparison vs Sony 135mm F1.8 GM vs Sigma 135mm F1.8 vs Viltrox 135mm F1.8 vs Samyang 135mm F1.8 Lenses on Sony A7R V
And here we have a specs and feature comparison of these five lenses for further analysis: