Sigma
Sigma 10-20mm f/3.5 EX DC HSM, Canon AF
For digital use only
Sigma 105mm F2.8 EX DG OS HSM Macro, Canon
1:1 Macro, minimum Aperture F/22, low dispersion glass
Sigma 105mm F2.8 EX DG OS HSM Macro, Nikon
1:1 Macro, minimum Aperture F/22, low dispersion glass
Sigma 52mm Protector Filter
Thinner frame, clear glass filter to protect the lens
Sigma 55mm Protector Filter
Thinner frame, clear glass filter to protect the lens
Sigma 55mm WR Circular Polarising Filter
Water and oil repellent, Thinner frame
Sigma 55mm WR Protector Filter
Water and oil resistant (WR), thinner frame, clear glass filter
Sigma 58mm Protector Filter
Thinner frame, clear glass filter to protect the lens
Sigma 58mm WR Circular Polarising Filter
Water and oil repellent, Thinner frame
Sigma 62mm WR UV Filter
Water and oil resistant (WR), thinner frame, clear glass filter
Sigma 67mm Digital EX DG UV filter
Reduces ultraviolet light, optimized for digital SLR
Sigma 67mm Protector Filter
Thinner frame, clear glass filter to protect the lens
Sigma 70-300mm f4-5.6 DG Macro S 2, Nikon AF
For film or digital
Sigma 72mm Digital EX DG UV filter
Reduces ultraviolet light, optimized for digital SLR
Sigma 77mm Digital EX DG UV filter
Reduces ultraviolet light, optimized for digital SLR
Sigma 77mm Protector Filter
Thinner frame, clear glass filter to protect the lens
Sigma 82mm Protector Filter
Thinner frame, clear glass filter to protect the lens