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Features:
- Super Multi-Layer Coating reduces flare & ghosting
- Excellent image quality thanks to two ELD glass elements
- Internal focusing for ease of handling
- Great for filters with a rear filter holder
- Hyper Sonic Motor delivers fast, silent autofocus Super Multi-Layer Coating The Sigma 300 mm f/2.8 EX DG APO HSM has a special coating that reduces internal reflection & minimises flare & ghosting, resulting in sharper, high contrast images. Excellent image quality Two ELD (Extraordinary Low Dispersion) glass elements keep chromatic aberration to a minimum to deliver brilliant results. Internal focusing An internal focusing system means the overall length of the lens stays the same while focusing for convenient handling & fast autofocus. Great for filters in addition, this lens features a rear drop-in 46 mm filter holder, which can be rotated to facilitate the uses of filters such as a polarizing filter. Hyper Sonic Motor The HSM (Hyper Sonic Motor) operates fast, silent autofocus, which is ideal when shooting video, while full-time manual focus override means you don't have to manually switch modes.