Date   
Wings of Strehl. 7 messages By Yuri ·
Planetary viewing with TEC 140 best without a diagonal? 19 messages By Terri Zittritsch ·
Finally smokeless, cloudless and moonless night. NGC 206. 7 messages By Peter Nagy ·
Measurement By TolgaAstro LLC . ·
Trifid Nebula M20 TEC180FL 4 messages By peter.rejto@... ·
A bit of history By Yuri ·
Back Focus 7 messages By Eric Davis ·
Has TEC ever produced a 300/f??? Maksutov? 24 messages By Flamsteed_ 19 ·
my first refractor- need some help on accessories for Tec 140 15 messages By Jason Zicherman ·
Spacing calculation for Canon 6D for TEC field flattener? 5 messages By Stuart Forman ·
Pictures of new APO140FL 8 messages By Yuri ·
Focus Position With TEC160 Field Flattener 2 messages By Mike C ·
Guiding TEC160FL 6 messages By Mike C ·
TEC 140 FL status? 18 messages By dan ·
What to do after (and before) retirement By Yuri ·
TEC140 FL with a Nitecrawler (Update) 32 messages By bob ·
TEC180FL + FF + KAF16200. How much curvature? 5 messages By peter.rejto@... ·
How to tell TEC140 and TEC180 FF apart??? 5 messages By peter.rejto@... ·
TEC140 FL with a Nitecrawler 9 messages By Tony Benjamin ·
OTA focuser end 2 messages By johnnyK ·