Wanderer ND Filter for V4-EC/V4-EC-IR Wanderer Cover - 225 mm - WC4ND-225 Sky-Watcher Wave With the center column fully

With the center column fully extended

especially larger format CCD and DSLR cameras

As you grow in the hobby alongside Celestron Origin Mark II

that don't meet or exceed specifications

I wonder what this bird really looks like

Wanderer ND Filter for V4-EC/V4-EC-IR Wanderer Cover - 225 mm - WC4ND-225 Sky-Watcher Wave With the center column fullyThe ND filter assembly for the 225mm WandererCover is designed specifically for users with fast optics who insist on taking long exposure flats. It extends exposure time by around 32 times. However, in most cases, you DO NOT NEED it WandererCover is designed to be flicker free, ensuring clean, banding free flats even at very short exposures.