VISHAY M64Y503KB40 Trimmer Potentiometer, 50 kohm, 500 mW, ± 10%, 64Y Series, 21 Turns, Through Hole Tiffen 5650CGTO3S Consider them a pinnacle amongst

Consider them a pinnacle amongst studio tripods

This does not affect the function of the lens

Comparable 35mm Focal Length: 200 - 600 mm Aperture Maximum: f/4 - 5

For 300" Screen: 29

VISHAY M64Y503KB40 Trimmer Potentiometer, 50 kohm, 500 mW, ± 10%, 64Y Series, 21 Turns, Through Hole Tiffen 5650CGTO3S Consider them a pinnacle amongstThe Vishay 64 series are cermet, through hole trimming potentiometers. These potentiometers are multi turn, small size with PC board mounting. Available in five versions (P, W, X, Y, Z) which differ by the position of the control screw in relation to the PC board plane and by the spacing of the terminals. Excellent operational stability is provided by the use of a cermet element. 10mm square potentiometer, industrial grade Sealing is IP67 rated (fully