Sigma 200-500mm F2.8 APO EX DG
by henrywong
| 
150mm f/2.8 APO Macro EX f/5.6
by vsk
| 
Sigma 150mm F2.8 EX DG OS HSM APO Macro
by Liz Bickel
| 
APO-LANTHAR 90mm F3.5 SL (M42 mount)
by koji kawakami
| 
MACRO APO-LANTHAR 125mm F2.5 SL (F mount)
by koji kawakami
|
DG vs non-DG TCs
by Miljenko Devcic
| 
Sigma 70-200mm F2.8 EX APO
by hyperplanar
| 
Sigma 150mm f/2.8 APO EX DG Macro HSM
by Liz Bickel
| 
Torenvalk - Common Kestrel
by Richard Diepstraten
| 
APO-LANTHAR 35mm F2 Aspherical
by koji kawakami
|
