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16-02-2010, 12:16 AM
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stumblebum
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Join Date: Mar 2008
Location: Maroochydore
Posts: 765
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Hi Jen
You need a T ring adaptor which is camera specific and a T mount which is basically a tube the size of an eye piece. Screw ring onto T mount and then attach to camera like a lense and away you go.
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16-02-2010, 12:33 AM
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Waiting for next electron
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Join Date: Mar 2008
Posts: 2,427
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Jen you need this https://www.bintelshop.com.au/welcome.htm and depending on the size of your focuser (I am assumming 2" ???) something like this https://www.bintelshop.com.au/welcome.htm or this https://www.bintelshop.com.au/welcome.htm. There are lots of different options for the nose piece but the EOS ring is pretty standard. Most online suppliers can get these for you so shop around for the cheapest price. People who use 2.6, 3, 3.5 and 4" focusers will generally have an adaptor that will let you plug in the 2" nose piece so yes you can even use it on a 20" scope.
Mark
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16-02-2010, 12:40 AM
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Moving to Pandora
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Join Date: Jan 2008
Location: Swan Hill
Posts: 7,101
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Hey hello Mark
Thanks but all those links you put up all take me just to the home page of bintel
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16-02-2010, 12:43 AM
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IIS Member #671
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Join Date: Dec 2005
Location: Canberra
Posts: 11,159
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Jen,
As has been mentioned, you need an EOS T-ring and T-mount.
The EOS T-ring has the same bayonet as your standard EF lenses you use on the camera. You attach the T-mount (tube) to the T-ring usually by three tiny screws in the ring. Then slide the assembly into your focuser as usual.
Shouldn't cost more than $50.
H
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16-02-2010, 05:51 AM
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Registered User
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Join Date: Oct 2004
Location: New Zealand
Posts: 4,345
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Nah, just do what I used to, hang the camera strap around the focuser or finder, just in case.
Gary
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16-02-2010, 08:17 AM
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Registered User
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Join Date: Jan 2009
Location: Glenhaven
Posts: 4,161
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These links work any better for you?
2" to 1.25" adapter with T-thread
https://www.bintelshop.com.au/Product.aspx?ID=7472
Canon T-ring
https://www.bintelshop.com.au/Product.aspx?ID=5551
You screw the t-ring on to the adapter, click the camera onto the t-ring exactly the same as you would a lens, then slide the adapter into the focuser, and tighten exactly as you would with an eyepiece.
Wrapping the strap around something is optional, but does get it out of the way.
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16-02-2010, 10:25 AM
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Starcatcher
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Join Date: Dec 2006
Location: Gerringong
Posts: 8,539
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Jen, ask for secondhand in the classifieds first. I'm sure you'll save some money. The only risk is receiving a badly worn T-ring, perhaps?
ps, if you are buying new, see if you can extend to one of these:-
http://www.myastroshop.com.au/produc...sp?id=MAS-055A
I'll bring one to SV camp if you want to have a look.
You still need the T-ring as well.
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16-02-2010, 09:25 PM
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Waiting for next electron
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Join Date: Mar 2008
Posts: 2,427
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16-02-2010, 09:36 PM
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ATMer and Saganist
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Join Date: Jun 2008
Location: Adelaide S.A.
Posts: 2,281
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Now for the bad news Jen,
once you have all that sorted it may not come to focus!
I hope there is enough inward travel on your focuser for
it to do so...but it possibly won't be.
Don't panic....there are ways around that. Best just to get the
adaptor they have mentioned first and test it.
You will need it anyway, even to proceed to the next step.
Steve
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16-02-2010, 10:03 PM
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Registered User
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Join Date: Mar 2009
Location: Horsham, Victoria
Posts: 443
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Thank you Jen for starting this thread. I was thinking along the same lines about getting an adaptor.
Nice timing too. If you can get your gear before Snake Valley, you can get the guys to teach you how to use it.
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16-02-2010, 10:11 PM
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Registered User
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Join Date: Mar 2009
Location: Horsham, Victoria
Posts: 443
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Quote:
Originally Posted by kinetic
Now for the bad news Jen,
once you have all that sorted it may not come to focus!
I hope there is enough inward travel on your focuser for
it to do so...but it possibly won't be.
Don't panic....there are ways around that. Best just to get the
adaptor they have mentioned first and test it.
You will need it anyway, even to proceed to the next step.
Steve
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Steve, Is there any way to correct focus other than to move the primary mirror up the OTA?
Modifying a Newtonian Tube for DSLR Photography
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16-02-2010, 10:16 PM
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Waiting for next electron
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Join Date: Mar 2008
Posts: 2,427
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Quote:
Originally Posted by kinetic
Now for the bad news Jen,
once you have all that sorted it may not come to focus!
I hope there is enough inward travel on your focuser for
it to do so...but it possibly won't be.
Don't panic....there are ways around that. Best just to get the
adaptor they have mentioned first and test it.
You will need it anyway, even to proceed to the next step.
Steve
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Jen has a unique solution to this if it becomes an issue .
Mark
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16-02-2010, 10:31 PM
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Registered User
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Join Date: Feb 2005
Location: Monto
Posts: 16,741
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Quote:
Originally Posted by erick
Jen, ask for secondhand in the classifieds first. I'm sure you'll save some money. The only risk is receiving a badly worn T-ring, perhaps?
ps, if you are buying new, see if you can extend to one of these:-
http://www.myastroshop.com.au/produc...sp?id=MAS-055A
I'll bring one to SV camp if you want to have a look.
You still need the T-ring as well.
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Ooooh yes Jen. I have one of those. They're a brilliant piece of kit.
Holds the camera in the focuser very snuggly, no slop at all. But it's easy to loosen and reframe what you're shooting.
I'd highly recommend it, if you can afford it.
There is a very good chance that you may be able to achieve focus using this adaptor. It butts the camera right up tight to the focuser.
Last edited by jjjnettie; 16-02-2010 at 10:55 PM.
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16-02-2010, 10:46 PM
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Moving to Pandora
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Join Date: Jan 2008
Location: Swan Hill
Posts: 7,101
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Quote:
Originally Posted by erick
Jen, ask for secondhand in the classifieds first. I'm sure you'll save some money. The only risk is receiving a badly worn T-ring, perhaps?
ps, if you are buying new, see if you can extend to one of these:-
http://www.myastroshop.com.au/produc...sp?id=MAS-055A
I'll bring one to SV camp if you want to have a look.
You still need the T-ring as well.
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Thanks Guys
Thanks Eric im trying to get organised so that i have all this stuff before i get to Snake Valley so you guys can show me what to do with it next
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16-02-2010, 10:49 PM
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Moving to Pandora
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Join Date: Jan 2008
Location: Swan Hill
Posts: 7,101
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16-02-2010, 10:51 PM
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Starcatcher
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Join Date: Dec 2006
Location: Gerringong
Posts: 8,539
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And I'll bring my hacksaw so we can saw the end of your tube off to reach focus!
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