Addendum - Tables |
EAF Focus Table TSO 203/1624 RC with TS-Optics 2.5" Rack and Pinion Focuser |
updated: 2025-02-27 |
Review Required (currently two divergent measurements)
see also: ZWO Electronic Automatic Focuser EAF Advanced
Optimal EAF Focuser Start Positions for the Main Camera
|
Label |
Old Label |
Active |
Specifier |
L: Scope or Lens |
L: Tube Length [mm] |
L: FoL [mm] |
C: Camera |
E: Tube Ext. [mm] |
O: Other |
T: Tail Length [mm] |
V: Focuser Point [mm] |
V: EAF Focus [steps] |
EAFMax [steps] |
Max Travel Distance [mm] |
|
TS1624cAS294 |
Config41 |
Y |
TS1624cAS294E100T53 |
TSO RC 203/1624 |
1370,00 |
1624,00 |
ASI294MC-Pro |
100,00 |
|
53,06 |
9,94 |
4355 |
21907 |
50 |
|
TS1624cAS294-R |
|
Y |
TS1624cAS294R67 |
TSO RC 203/1624 |
1370,00 |
1624,00 |
ASI294MC-Pro |
0,00 |
TSO 0.67 Reducer |
0,00 |
163,00 |
Invalid |
21907 |
50 |
|
TS1624rAS294 |
|
Y |
TS1624rAS294E75T77 |
TSO RC 203/1624 |
1370,00 |
1624,00 |
ASI294MC-Pro |
75,00 |
|
77,95 |
16,05 |
5502 |
35105 |
102,4 |
EAF Focuser Characteristics on TSO 203/1624 Telescope
Focuser Position on Scale |
EAF Step Position |
|
EAF MIN Position |
00000 steps |
|
EAF MAX Position focuser totally out, position 102.4 mm |
35083 steps |
|
Optimal (calculated) |
depending on optical configuration |
|
Measured Backslash |
140 steps (see also: EAF Backslash Compensation) |
|
Focuser Gear Ratio |
303.5 steps / mm (or 365 EAF positions / cm) or 0.003295 mm / step |
|
Measurement inaccuracy |
0.45% steps (see also: EAF Performance ) |
Created with the Personal Edition of HelpNDoc: Free EBook and documentation generator