Addendum - Tables

EAF Focus Table TSO 203/1624 RC with TS-Optics 2.5" Rack and Pinion Focuser

updated: 2023-09-22

Review Required (currently two divergent measurements)

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 Range on TSO 203/1624 Telescope

Focuser Position on Scale


EAF Step Position 

MIN (totally in, position 0.0 mm)

00000

MAX (totally out, position 102.4 mm)

35083

Optimal (calculated)

14733 (steps)

43 mm

Focuser Gear Ratio (EAF)

  • 342.60742 EAF steps / mm
  • or 0.0029187 mm / step

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