Updated on:  16 Nov 2018

 

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$1,750 (accepting order)

  

50 objectives only (2050) . . . HK$650 (in stock 現貨)

 

- Focal length 250mm (f/5)

- Main tube and draw tube not included

 

55FL OTA (6255) . . . HK$5,350 (accepting order)

 

- Focal length 250mm (f/4.5), 533g, 60mm tube diameter

- Objectives only, 205g, (2555) . . . HK$3,980 (accepting order) 

 

89ED OTA (6187) . . . HK$9,280 (accepting order)

 

- Focal length 600mm (f/6.7), 2.1kg, 80mm tube diameter, camera not included

- Objectives only, 860g (2589) . . . HK$7,900 (accepting order)

 

90FL OTA (6291) . . . HK$13,200 (accepting order)

 

- Focal length 500mm (f/5.6), 2kg, 80mm tube diameter, camera not included

 

90FL OTA (6490) . . . HK$15,900 (in stock 現貨)

- 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$11,500 (in stock 現貨)

 

107FL CR set (6207) . . . HK$19,700 (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$18,900 (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$19,700 (in stock 現貨)

 

- 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$30,700 (in stock 現貨)

 

 

- 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$18,300 (in stock 現貨)

- Convert your existing f/5.6 107FL to f/3.9

 

107FL objectives only, 1.9kg (2107) . . . HK$17,200 (in stock 現貨)

 

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$590 (in stock 現貨)

 

 

80mm tube ring, one piece (7084) . . . HK$390 (in stock 現貨)

  

0.85x Reducer DG, 75g (7885) . . . HK$1,790 (in stock 現貨)

 

 

0.85x Reducer DGL (7887) . . . HK$2,280 (in stock 現貨)

 

  

0.72x Quadruplet super reducer, 270g (7872) . . . HK$3,920 (in stock 現貨)

 

- Specifically designed for the 90FL and 71FL objectives

 

1.08x DG flattener, 225g (7108) . . . HK$2,780 (in stock 現貨)

 

 

1.4x Tele-extender, 180g (7214) . . . HK$2,050 (in stock 現貨)

 

- For 300mm ~ 640mm focal length refractors

 

1.4x Tele-extender, 220g (7215) . . . HK$2,780 (in stock 現貨)

- For 500mm ~ 1000mm focal length refractors

 

M36.4 to 1.25"/T2 helical focuser (7315) . . . HK$660 (in stock 現貨)

 

- Ocular will not rotate during focusing, 10mm adjusting range

 

Other stocked items:

1601, 1606, 1620, 31012, 3125, 3200, 4013, 5003, 5005, 5007, 5011, 5013, 5017, 5504

7000, 7020, 7026, 7050, 7051, 7061, 7070, 7084, 7101, 7130, 7151, 7316, 7318, 7362

7401, 7403, 7423, 7425, 7458, 7459, 7502, 7504, 7505, 7506, 7507, 7508, 7509, 7517, 7518, 7519, 7522

7601, 7602, 7603, 7604, 7615, 7616, 7700, 77531, 77532, 7757, 7777

7801, 7923

 

* Please ask for all other Borg items