Canon EF 20mm f/2.8 USM on Canon EOS 7D vs Sigma 17-50mm F2.8 EX DC OS HSM Canon on Canon EOS 7D vs Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Canon on Canon EOS 7D

SÉLECTION (3 produits max.)
Canon EF 20mm f/2.8 USM
Canon EF 20mm f/2.8 USM

Score DXOMARK
Optimale à f=20mm & f/4 [?]
13

Valeurs clés

Piqué [?]
8 P-Mpix
Transmission [?]
3.1 TStop
Distorsion [?]
0.5 %
Vignettage [?]
-1.2 EV
Aberration chr. [?]
10 µm
Sigma 17-50mm F2.8 EX DC OS HSM Canon
Sigma 17-50mm F2.8 EX DC OS HSM Canon

Score DXOMARK
Optimale à f=21mm & f/2.8 [?]
16

Valeurs clés

Piqué [?]
8 P-Mpix
Transmission [?]
3.1 TStop
Distorsion [?]
0.3 %
Vignettage [?]
-0.7 EV
Aberration chr. [?]
11 µm
Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Canon
Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Canon

Score DXOMARK
Optimale à f=24mm & f/3.2 [?]
15

Valeurs clés

Piqué [?]
9 P-Mpix
Transmission [?]
4 TStop
Distorsion [?]
0.4 %
Vignettage [?]
-0.7 EV
Aberration chr. [?]
6 µm