- Price Guarantee
Now there is no more tools needed to make collimation adjustments to your telescope! It's easy . . . just grab a Bob's Knob and turn. You can even collimate while looking through the eyepiece on most telescopes. What's more, you'll never drop that pesky little Allen wrench or screwdriver in the grass again. Installation is a snap with included instructions, and you can undo the modification at any time.
Bob's Knobs KNOBM8S - Meade 8 f/10 SCT with 6-Screw Secondary
Fits: Meade 8" f/10 SCT with 6-Screw Secondary. It is important that you choose the correct style Bob's Knobs for your telescope. Please note the number and type of screws on your secondary housing before ordering. The product you receive may not resemble that shown.
Meade has re-designed the secondary mirror assembly on their 8" SCT with six screws instead of three screws that appear on the older design. The three outer screws hold the secondary housing parts together, and the three inner screws are for collimation.
The 8" SCT six-screw secondary requires knobs with longer screws. Knobs for the 6-screw secondary must not be used on scopes with the 3-screw secondary. The screws are too long and they can contact the back of the secondary mirror.
Collimation By Scope Cassegrains
Collimation Tool Collimation Knobs
Manufacturer Bob's Knobs
Warranty Lifetime Warranty
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.
To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.
Our 100% Price Guarantee has some limitations:
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and buy one, get one free offers are not eligible
- The item must be in stock on the competitors website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer of the product in question
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
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