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TriBahtinov Mask for Collimation and Focus

A TriBahtinov mask operates under the same principle as the Bahtinov mask for focusing and adds the ability to collimate scopes with collimatable optics.  
The design is based on Cytan's idea, documented on his Github site here, and the sketch was made using Satoru Takagi's Mask Generator.
The mask has a raised center for an easy grip and comes in three sections that snap fit together and can be taken apart for easier storage (C5 is one piece, 14" and larger are 6 sections).  


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Priority shipping available also. International shipping calculated at checkout. Please see the shipping tab for more info.

Printed in durable, temperature tolerant PETG filament.

Instructions for use:

Please see Cytan's wiki page.  

Tribahtinov-C5 - $23
Hole dia. 50mm
Celestron 5" SCTs
TriBahtinov-M6LX65 - $24
Hole dia. 73mm
Meade 6" LX65
TriBahtinov-C8-NF - $24
Hole dia. 67mm
Celestron 8" SCT (non-Fastar/Hyperstar)
TriBahtinov-M8 - $24
Hole dia. 72mm
Meade 8" LX200/GPS/2080
TriBahtinov-CClassic8 -$24
Hole dia. 72mm
Celestron "Classic8" (specific scope only)
TriBahtinov-M8F6.3 - $24
Hole dia. 75mm
Meade 8" Model 2080 (F6.3)
TriBahtinov-C9.25-NF - $25
Hole dia. 85mm
Celestron 9.25" SCT (non-Fastar/Hyperstar)
TriBahtinov-M8LXACF - $24
Hole dia. 77mm
Meade 8" LX90ACF/GPS LX200ACF/LS90ACF
TriBahtinov-C11-NF - $31
Hole dia. 92mm
Celestron 11" SCT (non-Fastar/Hyperstar)
TriBahtinov-M10
Hole dia. 78mm
Meade 10" LX200/GPS/90/GPS/50/2120
TriBahtinov-C14-NF - $42
Hole dia. 104mm
Celestron 14" SCT (non-Fastar/Hyperstar)
TriBahtinov-M10LXF6.3 - $26
Hole dia. 85mm
Meade 10" LX200 F6.3
TriBahtinov-C6 - $26
Hole dia. 57mm/73mm
Celestron 6" SCT (Fastar, Hyperstar, EdgeHD)
TriBahtinov-M10LXACF - $26
Hole dia. 89mm
Meade 10" LX200ACF/90ACF
TriBahtinov-C8 - $27
Hole dia. 71mm/78mm
Celestron 8" SCT (Fastar, Hyperstar, EdgeHD)
TriBahtinov-M10LX600-850 - $26 Hole dia. 122.4mm
Meade 10" LX600/850ACF
TriBahtinov-C9.25 - $28
Hole dia. 91.5mm/106mm
Celestron 9.25" SCT (Fastar, Hyperstar, EdgeHD)
TriBahtinov-M10LXEMC - $26
Hole dia. 87mm
Meade 10" LX200 EMC
TriBahtinov-C11 - $34
Hole dia. 98mm/111mm
Celestron 11" SCT (Fastar, Hyperstar, EdgeHD)
TriBahtinov-M12LX200 - $36
Hole dia. 89mm
Meade 12" LX200/LX200GPS
TriBahtinov-C14 - $45
Hole dia. 116mm/127mm
Celestron 14" SCT (Fastar, Hyperstar, EdgeHD)
TriBahtinov-M12LX850 - $36
Hole dia. 126mm
Meade 12" LX850
TriBahtinov-RASA8 - $24
Celestron RASA8 (98mm hole dia.)
TriBahtinov-M14LX200 - $42
Hole dia. 130mm
Meade 14" LX200/LX200GPS
TriBahtinov-RASA11 - $30
Celestron RASA8 (115mm hole dia.)
TriBahtinov-M14LXACF - $42
Hole dia. 136mm
Meade 14" LX200ACF
TriBahtinov-CCometCatcher - $24
Celestron Comet Catcher
TriBahtinov-M14LX850 - $42
Hole dia. 136mm
Meade 14" LX850
TriBahtinov-GSO6RC - $24
GSO 6" RC (Astro-Tech, TPO, iOptron, Orion, etc.)
TriBahtinov-M16LX200 - $47
Hole dia. 115.5mm
Meade 16" LX200/LX200GPS
TriBahtinov-GSO8RC - $24
GSO 8" RC (Astro-Tech, TPO, iOptron, Orion, etc.)
TriBahtinov-M16LXACF - $47
Hole dia. 145mm
Meade 16" LX200ACF
TriBahtinov-GSO10RC - $26
GSO 10" Closed Tube RC
TriBahtinov-MSN8
Meade 8" Schmidt-Newtonian
TriBahtinov-GSO10RCT - $30
GSO 10" Truss Tube RC
TriBahtinov-MSN10 - $26
Meade 10" Schmidt-Newtonian
TriBahtinov-GSO12RCT - $40
GSO 12" Truss Tube RC
TriBahtinov-SW-MN190 - $26
Skywatcher Maksutov-Newtonian 190mm
TriBahtinov-GSO14RC - $42
GSO 14" RC (Astro-Tech, TPO, iOptron, Orion, etc.)
TriBahtinov-SW-127MAK - $23
Skywatcher SkyMax 127 Mak-Cass
TriBahtinov-GSO16RC - $47
GSO 16" RC (Astro-Tech, TPO, iOptron, Orion, etc.)
TriBahtinov-ESDOB1245 - $48
Explore Scientific 12" DOB (DOB1245)
TriBahtinov-GSO8CC - $24
GSO 8" Classical Cassegrain
TriBahtinov-ESCH152MN-$23
Explore Scientific Comet Hunter 152mm Mak-Newt
TriBahtinov-GSO8N - $24
GSO 8" F4 Newtonian
TriBahtinov-BressMN152 - $23
Bresser Messier Mak Newt 152mm
TriBahtinov-CFF250RC - $30
CFF 250mm RC
TriBahtinov-VMC200L - $24
Vixen VMC200L
TriBahtinov-Apert-CS150Newt - $24
Apertura Carbonstar 150mm Imaging Newtonian
TriBahtinov-ODOBXT12 - $48
Orion XT12i 12" DOB
TriBahtinov-O10Newt - $26
Orion 10" Newt, F3.9

Please contact me if you are unsure if your scope is Fastar/Hyperstar compatible.

Hyperstar Note:  The C6, C8, C9.25, C11 and C14 TriBahtinov Masks accommodate both Hyperstar and native Fastar/secondary mirror configurations.  The central hole is sized for the Hyperstar and the mask includes a snap fit bushing to decrease the diameter for the Fastar ring.