Just a finder scope shoe and not a single extra hole necessary: A finder scope shoe is all you need - mounting is easy, just slide the Tri-Finder into the existing finder scope shoe. You now have 3 Vixen/Synta slots at your disposal. You can attach a finder scope, your LED finder and perhaps a laser pointer. You will ever need to grope around in the dark again, but easily be able to locate any faint object.   A holder for a mini guide scope: They look like finder scopes, but there are actually guide scopes. Astrophotographers like to use them with an auto-guider. But the best thing is that they are easy to install and fit into the Tri-Finder, so astrophotography is perhaps not child's play, but becomes a lot easier.   Use any combination of three aiming devices you wish including finder scope, red-dot reflex sights, green laser pointer brackets, mini guide scopes, and more. Attach three finder scopes or other aiming devices to your telescope quickly and easily.You'll never go back to using just one finder scope again   Accommodates three finder scopes simultaneously. Each finder is securely clamped with two screws. Using different types of finder at the same time, you can find your favourite objects easier and faster. In the end, we don't want to have to spend to long searching, we want to be observing window.adminAccountId=6003640932;