Bob's Knobs for GSO made 6" Classical Cassegrain (Astro-Tech, TPO, Apertura, Orion)
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Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.
US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.
International Customers:
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Collimate your Catadioptric or Newtonian reflector style telescopes without tools!
It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Part: GSO6CC
Fits: GSO 6" Classical Cassegrain telescope
Knobs: Black plastic, 15 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- If the dust cover cannot be installed because of knob height, you can use a shower cap in its place.
| Product Banner Type | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Collimate your Catadioptric or Newtonian reflector style telescopes without tools!
It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Part: GSO6CC
Fits: GSO 6" Classical Cassegrain telescope
Knobs: Black plastic, 15 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- If the dust cover cannot be installed because of knob height, you can use a shower cap in its place.
| Product Banner Type | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Bob's Knobs for GSO made 6" Classical Cassegrain (Astro-Tech, TPO, Apertura, Orion) # GSO6CC