Borg telescope updated on: 16 Mar 2022
Optical Tube Assembly (OTA)
35ED OTA (6037) . . . HK$2,350 (accepting order)
- Focal length 200mm (f/5.6), 209g, 45mm tube diameter
- Objectives only, 70g (2037) . . . HK$1,890 (accepting order)
50 objectives only (2050) . . . HK$740 (accepting order)
- Focal length 250mm (f/5)
- Main tube and draw tube not included
55FL OTA (6255) . . . HK$6,580 (accepting order)
- Focal length 250mm (f/4.5), 533g, 60mm tube diameter
- Objectives only, 205g, (2555) . . . HK$4,380 (accepting order)
90FL f/3.9ED OTA . . . HK$30,500 (accepting order)
90FL OTA (6291) . . . HK$14,520 (accepting order)
- Focal length 500mm (f/5.6), 2kg, 80mm tube diameter, camera not included
90FL OTA (6490) . . . HK$20,320 (accepting order)
- Focal length 500mm (f/5.6), 2.4kg, 80mm tube diameter, dew shield diameter 127mm
- Parts included 2591, 7875, 7070, 7700, 7507, 7000, 2x7085, 2x7020, 3200, 3125 as shown in photo, camera not included
- Objectives only, 950g (2591) . . . HK$13,020 (accepting order)
107FL CR set (6207) . . . HK$25,700 (accepting order)
- Carbon fiber main tube, rack & pinion focuser, fluorite lens, 2 elements in 2 groups
- Focal length 600mm (f/5.6), 3.7kg (2.8kg OTA only), 80mm tube diameter, dew shield diameter 127mm
- Including pair tube rings with base, 6x30 finder, diagonal, 9mm and 20mm eyepieces
- Parts included 2107, 7120, 7026, 7801, 9850, 7508, 7522, 7317, 7779, 8909, 8920, 2x7085, 2x7020, 3200, 3125, 0610 & 0630 as shown in photo
107FL BU-1 set (6209) . . . HK$24,400 (accepting order)
- BU-1 helical focuser, 95mm moving range
- Focal length 600mm (f/5.6), 3.4kg, 80mm tube diameter, dew shield diameter 127mm
- Including all items as shown in photo, except the camera and camera mount
- Parts included 2107, 9000, 7603, 7000, 3200, 3125
107FL CH set (6210) . . . HK$24,300 (accepting order)
- Carbon fiber drawtube, heavy duty high quality helical focuser
- Focal length 600mm (f/5.6), 3.2kg (2.8kg OTA only), 80mm tube diameter, dew shield diameter 127mm
- Including all items as shown in photo, except the camera and camera mount
- Parts included 2107, 7875, 7070, 7700, 7507, 7602, 7000, 2x7085, 2x7020, 3200, 3125
107FL f/3.9ED OTA . . . HK$33,500 (accepting order)
- High quality carbon fiber tube, including 21" long carrying bag
- 6-element advanced petzval optical system, 4.3kg, 115mm tube diameter
- Equipped with Feather Touch true 3" FTF3215B-A focuser, covers up to 55mm diagonal sensor
107FL f3.9 conversion kit . . . HK$19,300 (in stock 現貨)
- Convert your existing f/5.6 107FL to f/3.9
Heavy duty helical focuser (7875) . . . HK$3,820 (in stock 現貨)
- 646g, 30mm moving range
Feather Touch focuser FTF2008B-57mm . . . $4,400 (in stock 現貨)
- With two M57 female thread adapter
- 16mm travel range, path length same as 7835 helical focuser
** Main tube adapter as shown in photo is optional
Tube Ring
60mm tube ring, one piece (7065) . . . HK$520 (accepting order)
80mm tube ring, one piece (7085) . . . HK$580 (in stock 現貨)
0.8x Reducer DGQ55, 261g (7880) . . . HK$4,350 (accepting order)
0.85x Reducer DG, 75g (7885) . . . HK$1,890 (in stock 現貨)
0.72x Quadruplet super reducer, 270g (7872) . . . HK$4,280 (in stock 現貨)
- Specifically designed for the 90FL and 71FL objectives
1.08x DG flattener, 225g (7108) . . . HK$2,980 (in stock 現貨)
1.4x Tele-extender, 220g (7215) . . . HK$2,950 (in stock 現貨)
- For 500mm ~ 1000mm focal length refractors
M36.4 to 1.25"/T2 helical focuser (7315) . . . HK$680 (in stock 現貨)
- Ocular will not rotate during focusing, 10mm adjusting range
Other stocked items:
1601, 1606, 1620, 31012, 3125, 3200, 4013, 4603, 5003, 5005, 5007, 5011, 5013, 5017, 5504
7000, 7026, 7050, 7051, 7061, 7070, 7085, 7101, 7130, 7151, 7316, 7362
7401, 7403, 7425, 7458, 7459, 7502, 7504, 7505, 7506, 7507, 7508, 7509, 7517, 7522
7601, 7602, 7603, 7615, 7616, 7700, 77531, 77532, 7777
7921, 7922, 7923
* Please ask for all other Borg items
