Updated on: 19 Apr 2018

1.25" Ha 3nm round mounted filter . . . HK$3,890 (accepting order 接受订货)

1.25" SII 3nm round mounted filter . . . HK$3,890 (accepting order 接受订货)

1.25" OIII 3nm round mounted filter . . . HK$3,890 (accepting order 接受订货)

1.25" Ha 5nm round mounted filter . . . HK$2,650 (in stock 現貨)

1.25" SII 5nm round mounted filter . . . HK$2,650 (in stock 現貨) 

1.25" OIII 5nm round mounted filter . . . HK$2,650 (in stock 現貨)

1.25" Tru-Balance Gen 2 E-series LRGB round mounted filters . . . HK$3,790 (back ordered 訂貨中)

1.25" Tru-Balance Gen 2 I-series LRGB round mounted filters . . . HK$3,790 (accepting order 接受订货)

36mm Ha 3nm round unmounted filter . . . HK$5,140 (accepting order 接受订货)

36mm SII 3nm round unmounted filter . . . HK$5,140 (accepting order 接受订货) 

36mm OIII 3nm round unmounted filter . . . HK$5,140 (accepting order 接受订货)

36mm Ha 5nm round unmounted filter . . . HK$3,490 (in stock 現貨)

36mm SII 5nm round unmounted filter . . . HK$3,490 (in stock 現貨)

36mm OIII 5nm round unmounted filter . . . HK$3,490 (in stock 現貨)

36mm Tru-Balance Gen 2 E-series LRGB round unmounted filters . . . HK$5,350 (in stock 現貨)

36mm Tru-Balance Gen 2 I-series LRGB round unmounted filters . . . HK$5,350 (accepting order 接受订货)

50mm Ha 3nm round unmounted filter . . . HK$7,820 (accepting order 接受订货)

50mm SII 3nm round unmounted filter . . . HK$7,820 (accepting order 接受订货) 

50mm OIII 3nm round unmounted filter . . . HK$7,820 (accepting order 接受订货)

50mm Ha 5nm round unmounted filter . . . HK$5,750 (accepting order 接受订货)

50mm SII 5nm round unmounted filter . . . HK$5,750 (in stock 現貨)

50mm OIII 5nm round unmounted filter . . . HK$5,750 (accepting order 接受订货)

50mm Tru-Balance Gen 2 E-series LRGB round unmounted filters . . . HK$7,480 (accepting order 接受订货)

50mm Tru-Balance Gen 2 I-series LRGB round unmounted filters . . . HK$7,480 (accepting order 接受订货)

* Please ask for all other Astrodon items