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| p.3 #3 · Sigma 30mm f/2.8, 19mm f/2.8 and 30mm f/1.4 |
My plastic barrel 30/2.8 focuses very quickly... takes a moment to take the shake out, but then it is ready to go. Don't like the flare behaviour, but otherwise it is a very decent optical performer... not up to Oly 45 standards, but still very decent.
The 'old' 30/2.8 and 19/2.8 were already very good optically, especially the 30/2.8. Maybe they also changed the focusing system, because from what I've heard it was very slow.
About the old 30/1.4: center sharpness was excellent, but the borders needed stopping down till diffraction kicked in...