THE HELIOS 80mm f5 REFRACTOR & EQ1 MOUNT
A Helios 80mm short tube refractor on an Eq1 equatorial mount and fitted with a single speed RA drive was purchased second hand (£100 with one eyepiece and 90deg diagonal) with a view to it forming the basis of the Portable Imaging System
Helios 80mm f5 + Eq1 mount and RA drive
Vital Statisics
Weights (Kg)
|
Optical Tube Assembly |
1.26 |
|
Finder with bracket |
0.22 |
|
Diagonal and eyepiece |
0.18 |
|
Mount including RA drive |
2.11 |
|
Counterweight |
2.15 |
|
Table top tripod |
0.68 |
|
TOTAL |
6.6 |
Dimensions
|
OTA length (including caps but excluding adapter) |
370mm |
|
Distance from axis of OTA to RA shaft |
150mm |
|
Number of teeth on RA ring gear |
100 |