Collimation & Focusing Tools
- 3D Astro Bahtinov Focus Mask - 42mm ID # BM-S-42Our Price: $7.25In StockFree US Shipping Over $25
- Farpoint Bahtinov Focus Mask for Celestron 8" RASA # FP410-RASAOur Price: $28.50In StockFree US Shipping
- 3D Astro Bahtinov Focus Mask - 52mm ID # BM-S-52Our Price: $8.50In StockFree US Shipping Over $25
- 3D Astro Bahtinov Focus Mask - For ZWO SeeStar S50 Smart TelescopeOur Price: $9.50In StockFree US Shipping Over $25
- Bob's Knobs for Celestron C5 f/10 Secondary with Standard Collimation Screw Threads # C5stdOur Price: $18.95In StockFree US Shipping Over $25
- Maxell LR44 1.5 Volt Alkaline Battery (Pack of 2 Batteries)Our Price: $2.00 As low as $1.80In StockFree US Shipping Over $25
- Farpoint Bahtinov Focus Mask for Celestron 14" SCT with Fastar or Hyperstar # FP418HOur Price: $57.00In StockFree US Shipping
- HoTech Advanced CT Laser Collimator for 1.25" FocuserOur Price: $499.00Out of StockFree US Shipping
- Bob's Knobs for Celestron C11 f/10 with Flat Secondary Housing and Metric Collimation Screw ...Our Price: $22.95In StockFree US Shipping Over $25
- Bob's Knobs for Celestron C8 f/10 Secondary with Hyperstar and Metric Collimation Screw Thre...Our Price: $22.95In StockFree US Shipping Over $25
- On SaleBob's Knobs Springs for Meade Lightbridge (8", 10" & 12") f/5 Primary # CNsprSale Price: $15.95 Our Price: $18.95Out of StockFree US Shipping Over $25
- Howie Glatter 650nm Standard Brightness Red Laser Collimator - 1.25" (New Version)Our Price: $210.00Out of StockFree US Shipping
- Rigel Systems Aline Telescope Alignment Eyepiece / Collimation Cap - 2"Our Price: $14.95In StockFree US Shipping Over $25
- Bob's Knobs for SkyWatcher 5", 6", 8" & 10" Newtonian Primary # SWpriOur Price: $27.95Out of StockFree US Shipping
- Howie Glatter 635nm High Brightness Red Laser Collimator - 1.25" & 2" (New Version)Our Price: $320.00Out of StockFree US Shipping
- Discontinued3D Astro Bahtinov Focus Mask for Sharpstar 61EDPHII / Radian Raptor Telescope # BM-91Our Price: $17.50Out of StockFree US Shipping Over $25
- Farpoint Bahtinov Focus Mask (Unmounted) for DSLR Camera Lens w/ 82mm Filter Thread # FP444Our Price: $19.25Out of StockFree US Shipping Over $25
- Bob's Knobs for Meade 8" f/10 with 4-Screw Secondary # M8-4Our Price: $18.95In StockFree US Shipping Over $25
- 3D Astro Bahtinov Focus Mask - 100mm ID # BM-S-100Our Price: $14.50In StockFree US Shipping Over $25
- Bob's Knobs for Celestron C8 f/10 Pre-1980 Orange-Tube Secondary # C8orgOur Price: $22.95In StockFree US Shipping Over $25
- Howie Glatter 635nm High Brightness Red Laser Collimator - 1.25" (New Version)Our Price: $220.00Out of StockFree US Shipping
- Bob's Knobs for Celestron C9.25 f/10 Secondary with Standard Collimation Screw Threads # C9....Our Price: $21.95In StockFree US Shipping Over $25
- Bob's Knobs for Meade 12" f/10 with 3-Screw or 4-Screw Secondary # M12-3Our Price: $21.95In StockFree US Shipping Over $25