Fits any Standard shutter button with a threaded hole.
All release buttons are now equipped with an o-ring around the threaded shaft which creates friction between the soft release and shutter, preventing loss.
Most users of our thumbrests find that the new position places the first joint of the shutter finger over the shutter button when the hand is relaxed. Our soft release buttons are shaped to nestle comfortably under the index finger first joint, enabling a softer shutter release and allowing lower shutter speeds without shak