As an aid to focus pullers
When the switch set is separated from each other the contact is broken and triggers an alarm
With better frequency characteristics than metal particles
5/8" 27 Thread Male Coupling Adapter (Brass)
overly washed out images shot in bright light
QuikLok LPH-003 Free Standing Tripod Base Laptop Holder Magnus VT-QRP300 As an aid to focusAdjustable Height, Tilt, & Swivel Pull Out Mouse Tray The LPH 003 Free Standing Tripod Base Laptop Holder from Quiklok is an adjustable stand that is designed to support a notebook computer. The stand can accommodate any size laptop, without blocking access to ports, expansion slots, or the optical drive. A pull out mouse tray, which can be positioned on either side of the stand, retracts for easy storage. The stand supports height, tilt, and swivel