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Lumicon, Thousand Oaks & TeleVue DS filters - spectrum transmission tests
I've added to my webpage
http://home.freeuk.com/m.gavin/grism2.htm perhaps the first independent tests of the spectral transmission of eight deepsky filters that include OIII planetary neb filters by Lumicon, Thousand Oaks and TeleVue and Lumicon UHC, Swan [comet] and DS filters. The H-beta [emission neb] and twin OIII lines referenced and HPS, LPS, mercury lamps. I'd be interested in feedback. Maurice Gavin Worcester Park Ob - UK |
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Lumicon, Thousand Oaks & TeleVue DS filters - spectrum transmission tests
Hi Maurice,
This is excellent information and really shows the differences between different filters. I'd be interested to see the new Contrast Booster from Baader and also Astronomik's UHC and OIII filters if you know anyone who has them? Keep up the good work. Very best wishes and clear, dark skies. -- /Paul B, York, UK. www.buglassweb.btinternet.co.uk/astrohome.htm "Maurice Gavin" wrote in message ... I've added to my webpage http://home.freeuk.com/m.gavin/grism2.htm perhaps the first independent tests of the spectral transmission of eight deepsky filters that include OIII planetary neb filters by Lumicon, Thousand Oaks and TeleVue and Lumicon UHC, Swan [comet] and DS filters. The H-beta [emission neb] and twin OIII lines referenced and HPS, LPS, mercury lamps. I'd be interested in feedback. Maurice Gavin Worcester Park Ob - UK |
#3
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Lumicon, Thousand Oaks & TeleVue DS filters - spectrum transmission tests
Hi Maurice,
This is excellent information and really shows the differences between different filters. I'd be interested to see the new Contrast Booster from Baader and also Astronomik's UHC and OIII filters if you know anyone who has them? Keep up the good work. Very best wishes and clear, dark skies. -- /Paul B, York, UK. www.buglassweb.btinternet.co.uk/astrohome.htm "Maurice Gavin" wrote in message ... I've added to my webpage http://home.freeuk.com/m.gavin/grism2.htm perhaps the first independent tests of the spectral transmission of eight deepsky filters that include OIII planetary neb filters by Lumicon, Thousand Oaks and TeleVue and Lumicon UHC, Swan [comet] and DS filters. The H-beta [emission neb] and twin OIII lines referenced and HPS, LPS, mercury lamps. I'd be interested in feedback. Maurice Gavin Worcester Park Ob - UK |
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