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Post by davy on Dec 27, 2014 10:25:30 GMT
Hi folks. bored again..so the grey matter needed to get in gear again..I had an idea that I havent read about to my knowledge. .I bought an off axis guider and with still dabbling in astrophotography I thought it a great buy at £40..my idea is to fit two video cameras to the one scope via the off axis guider..anybody tried this.. once I get some cash together im looking to get a lodestar and try lodestar live .the loadstar can be used via the off axis as its intended guide cam for a/p but I wondered what would I get using two video cams recording to a four channel dvr at diff integration. . Apologies to other vendors for this choice but if I had the cash I would buy them all ...donations welcome
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Post by Dragon Man on Dec 27, 2014 14:21:10 GMT
Davy, just be aware that any camera attached to the Guiding side of an Off Axis Guider will receive very little incoming light. The small reflective surface is very small, but just large enough to allow a camera to see bright stars to guide on. As for seeing things with a Video camera, you'll see stars, and that's about all No Nebula, No galaxies, No fainter stars. But worth a try
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Post by davy on Dec 27, 2014 16:23:55 GMT
Yeah had thought that ken..the lodestar and lodestar live would be on the guider side and thats the conundrum what will it do..the lodestar and ll well documented in sgl at what it can achieve .. either way its a win win for me..
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Post by Rick in NWArk on Dec 31, 2014 18:37:30 GMT
Hadn't thought of this with just one scope, Davy, but as I have a 4-chan DVR, I had thought about using it for outreach. Specifically, a piggy backed scope with white-light solar on one and H-alpha on other, with maybe a cam on the setup. I could switch between the channels showing the difference between the sun features shown by the different light.
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Post by Deleted on Jan 1, 2015 7:41:04 GMT
Hi Davy, If you're going to get a Lodestar and want to run two cams at the same time, here's something I concocted with my finder scope and a Lodestar X2. I also use a narrow band Ha filter so the setup only works well on emission nebulae. I think it's necessary though with the finder to cut down the star bloat. The linked post also has some example captures. stargazerslounge.com/topic/231385-wide-fov-wlodestar/?p=2506006Don
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Post by davy on Jan 1, 2015 11:21:03 GMT
Hi don yeah ive read your posts in sgl ..nice set up on the finder.. I had seen the concept on a tutorial video from orion on their mini guider set up ,i had a look at modding my finder scope on the ed80 but it was too new at the time to mod i thought..but I always had the notion that If the off axis giuider Is not obtrusive for a/p would it be ok in av..I had thought about the point ken brought up about the size of the pick up mirror for field view..my thought on this was we use a 6mm eye piece to represent what the camera sensor can see so at 8mm x 8mm of the guider would give me leeway.. the lodestar is a guide camera by design so ideal cam as small as an eyepiece but best bit is adding pauls lodestar live thats where i think it gets intresting.. i waited long and weary till i snagged the guider for £40.. if it dosent work the set up will work great as an a/p guider or a separate lodestar av camera..but what if idoes work two lot's of data from one ed80 scope
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Post by davy on Jan 1, 2015 11:41:15 GMT
Ah rick man after my own heart..you force my hand..my next step in av evolution is to further the concept of the array and its use..the lodestar with the ed80 and off axis guider if it worked ok..the idea expands..I may get an injury compensation claim soon and if it's a good offer I was looking at getting an heq5 or eq6 .. mounting twin scopes ed80 and st102 these would be fitted as follows ed80 samsing scb 2001and lodestar on off axis guider..st102 fitted with an scb2000 and a scb2000 mounted on scope ring with a lens these would send av to the portable array box consisting of 4ch dvr and built in monitor. .looking at a grand for this project. .now thats a video rig
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Post by Deleted on Jan 1, 2015 18:20:27 GMT
Davy,
I just bought the Orion mini guider. The FL is 162mm which should be wider than I had with the ES finder. I want to get the NA and Eta Carinae nebulae. Eta gets high enough here in Hawaii, but Tarantula is pretty low and I think I'll be blocked. I may be able to set up my portable on our lanai to see it.
Look forward to seeing how your OAG idea works out. I have one that I never use, so if it works for you, I might give it a try.
Don
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Post by Deleted on Jan 1, 2015 19:01:00 GMT
Davy, just be aware that any camera attached to the Guiding side of an Off Axis Guider will receive very little incoming light. The small reflective surface is very small, but just large enough to allow a camera to see bright stars to guide on. As for seeing things with a Video camera, you'll see stars, and that's about all No Nebula, No galaxies, No fainter stars. But worth a try For what it's worth I guide with either a Mallincam VSS+ or an Xtreme. Generally there is a star visible but if not I will take the gain up to 6 and sense up as high as 24. The graph says I'm always within 1 pixel. With an over weight Meade LX200 that's nothing to complain about. All the best in 2015 and thanks to the upside down half of the globe for finally letting the comet go.
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Post by davy on Jan 1, 2015 20:49:36 GMT
Hi don worst thing about these ideas ..you have to buy to try .lol
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Post by davy on Jan 1, 2015 20:51:31 GMT
Hi ldb.. are you using an off axis guider fitted to the mallincam davy
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Post by Deleted on Jan 2, 2015 19:57:01 GMT
Hi ldb.. are you using an off axis guider fitted to the mallincam davy No I guide with separate lenses and cameras. I replied to mention that it is possible to use integrated video to guide with much fainter stars. Integration would work with an off axis guider as well.
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Post by davy on Jan 2, 2015 21:32:53 GMT
so im not completley off my rocker..nice to know.. so using the loadstar on the off axis guider as a video camera and not a guide camer a option ,,nice..cheers ldb...davy
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Post by Rick in NWArk on Jan 7, 2015 16:33:19 GMT
Ah rick man after my own heart..you force my hand..my next step in av evolution is to further the concept of the array and its use..the lodestar with the ed80 and off axis guider if it worked ok..the idea expands..I may get an injury compensation claim soon and if it's a good offer I was looking at getting an heq5 or eq6 .. mounting twin scopes ed80 and st102 these would be fitted as follows ed80 samsing scb 2001and lodestar on off axis guider..st102 fitted with an scb2000 and a scb2000 mounted on scope ring with a lens these would send av to the portable array box consisting of 4ch dvr and built in monitor. .looking at a grand for this project. .now thats a video rig Heck yeah, that sounds very nice. And not just for solar. You could do the multi-view with different filters too. Look at a single object thru H-alpha and then flip to H-beta on the other scope. Would be a great educational / demonstration setup!
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