M_J_Helin
Well-Known Member
I've owned this lense for about a year and a half. Some observations:
Firstly, it's heavy. Roughly one kilogram. So beware using this lense with a light tripods. Also the camera plate should be a stiff one, preferably an l-bracket. Otherwise the system might start to creep when shooting vertical photos.
Image quality is great. The center is tac sharp already at f1,4. I usually use the lens for astro photography and it's good at that. There is a little coma in the borders from 1,4 to 2,8, but nothing drastic. When used at f5,6 to 10 the sharpness and lack of ca around the frame is very good indeed.
Cons, I don't know. The coma, perhaps, although it's not a big deal and can be reduced by using live view and focusing using stars in the corners. Other than that, no complaints.
Some photos with this one:
F1,8
F2,2, seven frame panorama
F1,4
100%
Firstly, it's heavy. Roughly one kilogram. So beware using this lense with a light tripods. Also the camera plate should be a stiff one, preferably an l-bracket. Otherwise the system might start to creep when shooting vertical photos.
Image quality is great. The center is tac sharp already at f1,4. I usually use the lens for astro photography and it's good at that. There is a little coma in the borders from 1,4 to 2,8, but nothing drastic. When used at f5,6 to 10 the sharpness and lack of ca around the frame is very good indeed.
Cons, I don't know. The coma, perhaps, although it's not a big deal and can be reduced by using live view and focusing using stars in the corners. Other than that, no complaints.
Some photos with this one:
F1,8
F2,2, seven frame panorama
F1,4
100%
