Phone Mount for Astrophotography Polar Alignment on NOMAD/MSM Trackers Here are some common situations when you would like to use it: in countries like Australia and Switzerland where laser pointers are mostly banned when buildings, mountains, etc. blocking the sky ahead of you that you could not point to Polaris in locations such as airports and observatories where laser pointers are not allowed For polar alignment with phones, the Phone Mount is adjustable, easy to use, and light-weight, with the phone-holder part free to rotate. free to rotate the phone-holder part extendable grip enabling to adjust the phone-holder part for your phone size soft padding to securely holds your device fit for both 3/8"-16 and 1/4"-20 screws Specifications Wide Compatibility: 60-93mm, 2.36-3.66" Arca-Swiss Compatible: Yes Max Load: 2kg Item Weight: 0.352lbs (0.16kg) Material: Aluminum Alloy Instructions How to mount for NOMAD: Choose the option of phone mount + phone mount adapter Remove the red camp on the backside of NOMAD first Attach the phone mount adapter to the backside of NOMAD by the red cap Slide the phone mount holder and tighten it by the nylon screw Attach your phone to the mount, align the edges of the phone to the edges of NOMAD Use apps like Stellarium or Photopills to find the alignment target Polaris/NCP or SCP Follow the arrow guide of the app then adjust the setup for polar alignment For MSM Tracker: Please use the 3/8" screw included with the tracker to attach the phone mount to the bubble level side of your MSM.