Sigma 500mm f/4.5 EX DG APO HSM Autofocus Lens for Pentax Accessories
~~This Sigma 500mm f/4.5 EX DG APO HSM lens is an Apochromatic ultra-telephoto lens with a fast f/4.5 maximum aperture, and it incorporates two ELD (Extraordinary Low Dispersion) glass elements to reduce chromatic aberration to a minimum. Internal focus enables responsive and fast autofocus speed. The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. By adding the optional Sigma APO teleconverter, you can use this lens as a 700mm f/6.3 MF ultra-telephoto lens with a 1.4x EX teleconverter, or as a 1000mm f/9 MF ultra-telephoto lens with a 2x teleconverter. Powerful and silent Hyper Sonic Motor enables fulltime manual focus override. EX lens series denotes excellence of engineering and new
Lens Construction |
11 Elements in 8 Groups |
Angle of View |
5º |
Number of Diaphragm Blades |
9 |
Mininum Aperture |
f32 |
Minimum Focusing Distance |
400cm / 157.5in. |
Filter Size (mm) |
46mm (drop-in type) |
Maximum Magnifications |
1:7.7 |
Dimensions
(Diameter x Length) |
123mm x Length 350mm / 4.8in. x 13.8in. |
Weight |
3,150g / 111.1oz. |
Front Slip-on Lens Cap
Rear Lens Cap
Lens Hood
Soft Case
Two 46mm Rear Drop-In Filters:
Circular Polarizer
Normal (UV)
Brand New Factory Fresh Import Model