Bob's Knobs: Replacement Collimation Thumbscrews

Simple, Effective Upgrade

Easy to install, enabling for collimation without the need for taking a screwdriver anywhere near the corrector plate. Was able to find them quickly, on the website and, as usual check-out was easy and delivery was fast!

Outstanding Service

I am new to astronomy and any expert advice will be most helpful! Thanks to the staff at All-star Telescope.

So handy!

These are the handiest little things for collimating. Being able to run two screws at once makes things so much faster. For a dobsonian just measure the thickness of the block at the end of your spider vanes if you're not sure of the length of screw you need.