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HSM
HSM "HyperSonic Motor", in-lens ultrasonic motor, analogous to Nikon AF-S or Canon USM
Sigma's HSM lenses are similar to Nikon's own AF-S (Silent Wave Motor) type lenses. Only certain model Nikon AF cameras can use this type lens and maintain AF function. These cameras include: F5 series, F4, F100, N90S, N90, N80, N75, N70, N65, N55, D1, D1H, D1X, and D100. Models like the N60, N50, N8008, N6006, etc. can only be used for manual focus, with this type lens. However, all other functions (metering, exposure, etc.) will be normal with this, and other Sigma HSM lenses.
HSM "HyperSonic Motor", in-lens ultrasonic motor, analogous to Nikon AF-S or Canon USM
Sigma's HSM lenses are similar to Nikon's own AF-S (Silent Wave Motor) type lenses. Only certain model Nikon AF cameras can use this type lens and maintain AF function. These cameras include: F5 series, F4, F100, N90S, N90, N80, N75, N70, N65, N55, D1, D1H, D1X, and D100. Models like the N60, N50, N8008, N6006, etc. can only be used for manual focus, with this type lens. However, all other functions (metering, exposure, etc.) will be normal with this, and other Sigma HSM lenses.
Guide created: 12/05/07 (updated 09/28/09)
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