03:45
Gecko preys a small fish
00:37
Timelapse Halong Bay in Vietnam
00:32
Timelapse Halong Bay in Vietnam
00:29
Made Aluminum telescope mirror
01:28
Ronchi Test Aluminum telescope mirror D=400mm f3.8 3.7KG。 Astigmatism needs to be addressed
00:26
130mm binoculars
12:27
Home made Vacuum chamber 2.0 for telescope coating mirror
03:33
Peeping Nest
04:35
Vacuum chamber recoating mirror big binoculars
04:11
DIY Vacuum chamber for telescope coating mirror03
02:23
Vacuum chamber for telescope coating mirror
01:52
DIY Vacuum chamber for telescope coating mirror 02
03:33
DIY Vacuum chamber for telescope coating mirror
01:20
250mm Big Binocular Observation moon 01
01:24
250mm Big Binocular Observations moon
12:21
Home made 203mm (8inch) big binoculars
07:21
Home made 203mm (8inch) big binoculars mount.mp4
04:05
250mm Big binoculars Observation 20111210 Total Lunar Eclipse (Time-laspe).mp4
02:09
2008 total solar eclipse in China Xinjiang Time Lapse.mp4
04:13
Home made Equatorial Mount Gear
02:32
Home made Equatorial Mount Groove
02:11
Home made Equatorial Mount 02
02:46
Home made Equatorial Mount 01
08:57
Eight minutes installation 250mm big binoculars
03:32
Time Lapse China Emei Shan Sunrise
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