# mk1 vs mk2
**Feature****mk1****mk2**
Filter mountadhesive tape (top) adhesive tape (top or bot)
USB Cable lock screwsNo Yes
Soldering requiredYes Yes
DesignInitial Partial redesign
Swiss-Arca mountNo Optional (top/bot)
Mount¼” 20TPI (bot) 4x M3 (top/bot more flexible design)
PCB mountSalvaged self tapping scres M1.6 screws (easier to mount)
Integrated tripod mountYes No
USB pcb mountSideways Straight