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- Hubble Optics 5-Star Artificial Star for Testing and Collimating TelescopesOur Price: $27.00In StockFree US ShippingAdded: 21-May-10
- Farpoint Bahtinov Focus Mask for Telescopes with Dew Shield or Front End Diameter from 3.5" ...Our Price: $24.50Out of StockFree US Shipping Over $25Added: 13-Jul-10
- Farpoint Bahtinov Focus Mask for Celestron 8" Classic SCT # FP410Our Price: $28.50Out of StockFree US ShippingAdded: 21-May-10
- Bob's Knobs for Orion Secondary Set Screws on XT, SkyView & Others # CNsec30Our Price: $22.95In StockFree US Shipping Over $25Added: 09-Jul-11
- Farpoint Bahtinov Focus Mask for Celestron 8" SCT with Fastar or Hyperstar # FP410HOur Price: $28.50Out of StockFree US ShippingAdded: 12-Mar-15
- Farpoint Bahtinov Focus Mask for Celestron 11" SCT with Fastar or Hyperstar # FP412HOur Price: $36.00Out of StockFree US ShippingAdded: 22-Sep-11
- Farpoint Bahtinov Focus Mask for Meade 8" f/10 SCT # FP411Our Price: $28.50Out of StockFree US ShippingAdded: 21-May-10
- Bob's Knobs for Celestron C8 f/10 Post-1980 Secondary with Standard Collimation Screw Thread...Our Price: $18.95In StockFree US Shipping Over $25Added: 07-Jul-11
- Bob's Knobs for Celestron C6 f/10 Secondary with Metric Collimation Screw Threads # C6BOOur Price: $22.95In StockFree US Shipping Over $25Added: 07-Jul-11
- Farpoint Bahtinov Focus Mask for Celestron 9.25" SCT with Fastar or Hyperstar # FP415HOur Price: $33.50Out of StockFree US ShippingAdded: 25-Feb-17
- Farpoint Bahtinov Focus Mask for Meade 10" f/10 SCT # FP413Our Price: $37.00Out of StockFree US ShippingAdded: 21-May-10
- Farpoint Bahtinov Focus Mask for Celestron 11" Classic SCT # FP412Our Price: $36.00In StockFree US ShippingAdded: 21-May-10
- Farpoint Bahtinov Focus Mask for Celestron 9.25" Classic SCT # FP415Our Price: $33.50In StockFree US ShippingAdded: 21-May-10
- Farpoint Bahtinov Focus Mask (Unmounted) for DSLR Camera Lens w/ 77mm Filter Thread # FP443Our Price: $19.25Out of StockFree US Shipping Over $25Added: 25-Aug-15
- Bob's Knobs for C11 f/10 with “Trifid” Fastar Secondary Housing and Metric Collimation Screw...Our Price: $23.95In StockFree US Shipping Over $25Added: 27-Mar-12
- Bob's Knobs for Celestron C9.25 f/10 Secondary with Trifid Fastar Housing # C9.25fstOur Price: $23.95Out of StockFree US Shipping Over $25Added: 07-Jul-11
- Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edgBOOur Price: $22.95In StockFree US Shipping Over $25Added: 07-Jul-11
- Bob's Knobs for Celestron C8 f/10 Secondary with Metric Collimation Screw Threads (not for E...Our Price: $22.95In StockFree US Shipping Over $25Added: 07-Jul-11
- Bob's Knobs for Telrad Finder # TelradOur Price: $21.95In StockFree US Shipping Over $25Added: 10-Dec-11
- Farpoint Bahtinov Focus Mask for Celestron 6" SCT # FP409Our Price: $25.50Out of StockFree US ShippingAdded: 12-Mar-15
- Farpoint Bahtinov Focus Mask for Telescopes with Dew Shield or Front End Diameter from 7.5" ...Our Price: $32.50In StockFree US ShippingAdded: 13-Jul-10
- Bob's Knobs for Meade 10" f/10 with 3-Screw Secondary # M10-3Our Price: $21.95In StockFree US Shipping Over $25Added: 09-Jul-11
- Farpoint 2" Reflective Cheshire Collimator # FP261Our Price: $66.00Out of StockFree US ShippingAdded: 21-May-10
- Farpoint Bahtinov Focus Mask (Unmounted) for DSLR Camera Lens w/ 58mm Filter Thread # FP439Our Price: $19.25In StockFree US Shipping Over $25Added: 25-Aug-15