Updated on: 17 Nov 2018

1.25" Ha 3nm round mounted filter . . . HK$4,390 (accepting order 接受订货)

1.25" SII 3nm round mounted filter . . . HK$4,390 (accepting order 接受订货)

1.25" OIII 3nm round mounted filter . . . HK$4,390 (accepting order 接受订货)

1.25" Ha 5nm round mounted filter . . . HK$2,960 (in stock 現貨)

1.25" SII 5nm round mounted filter . . . HK$2,960 (in stock 現貨)

1.25" OIII 5nm round mounted filter . . . HK$2,960 (in stock 現貨)

1.25" Tru-Balance Gen 2 E-series LRGB round mounted filters . . . HK$4,270 (back ordered 訂貨中)

1.25" Tru-Balance Gen 2 I-series LRGB round mounted filters . . . HK$4,270 (accepting order 接受订货)

36mm Ha 3nm round unmounted filter . . . HK$5,830 (accepting order 接受订货)

36mm SII 3nm round unmounted filter . . . HK$5,830 (accepting order 接受订货) 

36mm OIII 3nm round unmounted filter . . . HK$5,830 (accepting order 接受订货)

36mm Ha 5nm round unmounted filter . . . HK$3,900 (in stock 現貨)

36mm SII 5nm round unmounted filter . . . HK$3,900 (in stock 現貨)

36mm OIII 5nm round unmounted filter . . . HK$3,900 (in stock 現貨)

36mm Tru-Balance Gen 2 E-series LRGB round unmounted filters . . . HK$6,160 (in stock 現貨)

36mm Tru-Balance Gen 2 I-series LRGB round unmounted filters . . . HK$6,160 (accepting order 接受订货)

50mm Ha 3nm round unmounted filter . . . HK$8,930 (accepting order 接受订货)

50mm SII 3nm round unmounted filter . . . HK$8,930 (accepting order 接受订货) 

50mm OIII 3nm round unmounted filter . . . HK$8,930 (accepting order 接受订货)

50mm Ha 5nm round unmounted filter . . . HK$6,780 (back ordered 訂貨中)

50mm SII 5nm round unmounted filter . . . HK$6,780 (in stock 現貨)

50mm OIII 5nm round unmounted filter . . . HK$6,780 (in stock 現貨)

50mm Tru-Balance Gen 2 E-series LRGB round unmounted filters . . . HK$9,260 (back ordered 訂貨中)

50mm Tru-Balance Gen 2 I-series LRGB round unmounted filters . . . HK$9,260 (accepting order 接受订货)

* Please ask for all other Astrodon items