You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar

Astrophotography and Sketching >> Solar System Imaging & Processing Previous   Index   Next   Threaded

Pages: 1 Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Baader C filter       #5664906 - 02/06/13 10:04 AM Edit   Reply   Quote Quick Reply   Hi all, I was reading on Facebook that an ASI120 user had screwed a Baader C filter into the camera body as a way (successfully it appears) to keep dust off the sensor. I am not sure which Baader C filter he used. Baader sells a 1.25" and 2" model. Seems like the 1.25" would be too small and the 2" would be too big. I think the camera body thread is 42 or 43mm. Does anyone have any ideas? Thanks! Paul Post Extras:       dobsoscope sage Reged: 05/24/06 Re: Baader C filter [Re: Sunspot]       #5664965 - 02/06/13 10:46 AM Edit   Reply   Quote Quick Reply   The FB post shows the 1.25 inch version https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash4/404799_2851083492532_1... Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: dobsoscope]       #5664977 - 02/06/13 10:56 AM Edit   Reply   Quote Quick Reply   Thanks! It was there all along and I didn't see it. Paul Post Extras:       dobsoscope sage Reged: 05/24/06 Re: Baader C filter [Re: Sunspot]       #5665002 - 02/06/13 11:09 AM Edit   Reply   Quote Quick Reply   Here is a "clearer" image http://oc.agenaastro.com/media/catalog/product/cache/9/image/9df78eab33525d08... But why cannot one use the supplied uv/ir cut filter instead? Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: dobsoscope]       #5665354 - 02/06/13 02:08 PM Edit   Reply   Quote Quick Reply   Rats!!! Absolutely correct.. Quote: Here is a "clearer" image http://oc.agenaastro.com/media/catalog/product/cache/9/image/9df78eab33525d08... But why cannot one use the supplied uv/ir cut filter instead? Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: dobsoscope]       #5666062 - 02/06/13 09:32 PM Edit   Reply   Quote Quick Reply   I just found out why the supplied filter is useless...it's an IR blocked filter which makes the 685nm IR filter useless. From the link it looks like the Baader filter is also IR blocked. Always something! Paul Quote: Here is a "clearer" image http://oc.agenaastro.com/media/catalog/product/cache/9/image/9df78eab33525d08... But why cannot one use the supplied uv/ir cut filter instead? Post Extras:       Freddy WILLEMS Postmaster Reged: 11/13/05 Loc: Hawaii, Honolulu Re: Baader C filter [Re: Sunspot]       #5666075 - 02/06/13 09:42 PM Edit   Reply   Quote Quick Reply   Can you just not install a clear filter that works with all the other filters ? Post Extras:       dobsoscope sage Reged: 05/24/06 Re: Baader C filter [Re: Sunspot]       #5666415 - 02/07/13 02:46 AM Edit   Reply   Quote Quick Reply   The second message here says otherwise http://www.cloudynights.com/ubbthreads/showflat.php/Cat/1,2,3,4,5,8/Number/4943328/Main/4943042 Quote: I just found out why the supplied filter is useless...it's an IR blocked filter which makes the 685nm IR filter useless. From the link it looks like the Baader filter is also IR blocked. Always something! Paul Quote: Here is a "clearer" image http://oc.agenaastro.com/media/catalog/product/cache/9/image/9df78eab33525d08... But why cannot one use the supplied uv/ir cut filter instead? Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: dobsoscope]       #5666701 - 02/07/13 09:32 AM Edit   Reply   Quote Quick Reply   That's what was so confusing. The container in the link you posted earlier says IR-blocked, but the vendor assures me that it is not blocked so I'm going with that. I'll report back later on my observations. Thanks for the help. Paul Quote: The second message here says otherwise http://www.cloudynights.com/ubbthreads/showflat.php/Cat/1,2,3,4,5,8/Number/4943328/Main/4943042 Quote: I just found out why the supplied filter is useless...it's an IR blocked filter which makes the 685nm IR filter useless. From the link it looks like the Baader filter is also IR blocked. Always something! Paul Quote: Here is a "clearer" image http://oc.agenaastro.com/media/catalog/product/cache/9/image/9df78eab33525d08... But why cannot one use the supplied uv/ir cut filter instead? Post Extras:       John Boudreau professor emeritus Reged: 04/06/08 Loc: Saugus, MA Re: Baader C filter [Re: Sunspot]       #5666706 - 02/07/13 09:35 AM Edit   Reply   Quote Quick Reply   Here's the transmission curve for the Baader clear filter: http://www.baader-planetarium.de/sektion/s43b/bilder_43b/c-filter_gross.gif Looks like it will still allow use of a UV-Venus filter in addition to near-IR longpass filters. Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: Freddy WILLEMS]       #5666707 - 02/07/13 09:36 AM Edit   Reply   Quote Quick Reply   Freddy, That's what I hope the Baader clear filter will do for me...more later when it arrives. Paul Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: John Boudreau]       #5674806 - 02/11/13 09:07 PM Edit   Reply   Quote Quick Reply   John, Thanks! That is more re-assuring. I just got the filter today and put it on the ASI camera. Of course it is cloudy and rainy tonight so I won't be able to test it until tomorrow night. Thanks again. Paul Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: Sunspot]       #5676647 - 02/12/13 09:47 PM Edit   Reply   Quote Quick Reply   Done with this. The Baader C filter does exactly what I'm looking for...over and out... Paul Post Extras:       dobsoscope sage Reged: 05/24/06 Re: Baader C filter [Re: Sunspot]       #5677319 - 02/13/13 09:52 AM Edit   Reply   Quote Quick Reply   Some are suggesting to simply remove the black foam surrounding the chip.. it does no harm. Post Extras:       Rankinstudio Carpal Tunnel Reged: 04/05/08 Loc: Southern UT Re: Baader C filter [Re: dobsoscope]       #5677386 - 02/13/13 10:38 AM Edit   Reply   Quote Quick Reply   Very useful information, thanks Paul Post Extras:       Sunspot Post Laureate Reged: 03/15/05 Loc: Surprise, AZ Re: Baader C filter [Re: dobsoscope]       #5677413 - 02/13/13 10:49 AM Edit   Reply   Quote Quick Reply   Thanks. I was wondering about that because after yesterday's adventures, it seems like that is where a lot, if not most of the motes are coming from. Quote: Some are suggesting to simply remove the black foam surrounding the chip.. it does no harm. Post Extras:       Pages: 1

Previous   Index   Next   Threaded

Extra information 7 registered and 14 anonymous users are browsing this forum. Moderator:  Boot, bilgebay  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 531 Jump to *Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Celestial Events*General Astronomy* -----   Beginners Forum   General Observing and Astronomy   Outreach   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   NEO   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Speciality Forums* -----   Arizona Science and Astronomy Expo   NEAF (Northeast Astronomy Forum) and NEAIC (Northeast Astro Imaging Conference)   AstroArt   Astronomy Clubs and Star Parties   Astronomy Software & Computers   AstroWebsites   Science! Astronomy & Space Exploration, and Others   Space Rocks   Stellar Media*Swap and Shop* -----   Shop and Swap Audio Components*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements*International Year of Astronomy 2009 - Forums are now closed.* -----   IYA Archive Info

CN Forums Home