The Kowa TSN-VA2 adapter allows you to use the Kowa 60mm, 61mm, 66mm, 77mm & 82mm spotting scopes for digiscoping purposes without using your existing eyepiece! This is very useful for two purposes: it reduces the effective magnification on the scope's side of the equation, and allows significantly more eye relief to prevent vignetting of the imagery with the digiscope combination.
All ventures in the world of digiscoping require the use of a sturdy tripod, first and foremost. You must take great care to keep vibrations during exposure to an absolute minimum. Employing a cable release, electronic release or remote control for tripping the shutter is absolutely necessary. And while it is not necessary per se, the TSN-DA3 Mounting Bracket will do wonders to reduce vibrations of your rig.