# mk1 vs mk2
**Feature** | **mk1** | **mk2** |
Filter mount | adhesive tape (top) | adhesive tape (top or bot) |
USB Cable lock screws | No | Yes |
Soldering required | Yes | Yes |
Design | Initial | Partial redesign |
Swiss-Arca mount | No | Optional (top/bot) |
Mount | ¼” 20TPI (bot) | 4x M3 (top/bot more flexible design) |
PCB mount | Salvaged self tapping scres | M1.6 screws (easier to mount) |
Integrated tripod mount | Yes | No |
USB pcb mount | Sideways | Straight |