The action of the push pull zoom and twist focus is smooth and positive.
Sigma 28-80mm Zoom Lens 1:3.5-5.6 Macro Canon EOS fit
Sigma High-Speed Zoom Lens Multi Coated Black 200mm 1:3.5 F=80-200mm untested
Sigma Video Tele Zoom Converter Lens VZ- 2 With Case
SIGMA 18-50mm f/2.8 DC DN Zoom Lens for Sigma Mount, 55mm Filter
Sigma UC Zoom 28-70mm 1:3.5-4.5 Zoom SLR Camera Lens + Carry Case Retro
Sigma Zoom AF-β 60-200mm f/4-5.6 Zoom Lens Auto/Manual Focus Nikon Z
