Deleted
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Post by Deleted on Mar 8, 2017 12:03:50 GMT
Just wanting advice on the best video camera to start with on a 130mm or 200mm Newtonian Not sure if the Revolution R2 , ASI224, GX3 is the go or something else ? Any advice gratefully received
Gazza1000
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Post by davy on Mar 8, 2017 17:27:48 GMT
Hi gazza, can't go wrong with the revolution or zwo camera,, plenty of write ups on here and cloudy nights and zwo have there own forum, the gx3 info wise is pretty slow filtering through,,so for this reason I would go with the revolution or zwo, what mount will you be using.
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Post by Rick in NWArk on Mar 8, 2017 22:24:09 GMT
Although I currently don't use a Newtonian, you will want to make sure there is enough inward travel for focusing. Some cameras and Newts have problems achieving focus. I don't have any specifics to share, maybe others on here can.
p.s. Welcome to the forum!
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Post by Dragon Man on Mar 9, 2017 4:42:37 GMT
Just wanting advice on the best video camera to start with on a 130mm or 200mm Newtonian Not sure if the Revolution R2 , ASI224, GX3 is the go or something else ? Any advice gratefully received
Gazza1000 G'day Gazza, if you are considering the ZWO ASI224 there is also an equivalent 224 camera that is a lot cheaper. I did a test on both and you can read it here: astrovideoforum.proboards.com/thread/2108/rising-tech-gpcmos-imx224-performanceOther than the 224 cameras, the Revolution Imager is a full kit and doesn't need a computer, but you can use it with one if you want to. Best of both worlds And the Revolution Imager gives results faster if you are after 'near-live' results. As Rick has pointed out, Reflectors can be very hard to get focus using cameras. There are ways to modify the scope if you can't. Or buy a cheap Refractor. You don't need a lot of aperture with these cameras.
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Post by Deleted on Mar 9, 2017 9:57:06 GMT
Thanks for the advice guys The 130mm newt is a SW Photo reflector so should hopefully have enough focus leeway I also have a 80mm refractor but the focuser is a bit rubbish and slips out of focus easily I have a Star discovery mount and a HEQ5 Pro mount ( although still struggling with getting this polar aligned ) I will have to check the piggy bank to see which option I can afford but they all seem similar in price
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Post by Deleted on Mar 9, 2017 10:14:21 GMT
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Post by Dragon Man on Mar 9, 2017 12:22:42 GMT
Thanks for the advice guys The 130mm newt is a SW Photo reflector so should hopefully have enough focus leeway I also have a 80mm refractor but the focuser is a bit rubbish and slips out of focus easily I have a Star discovery mount and a HEQ5 Pro mount ( although still struggling with getting this polar aligned ) I will have to check the piggy bank to see which option I can afford but they all seem similar in price Ahhhh, if you have a Photo Reflector (Imaging Newtonian) also called an Astrograph (a telescope made for Astrophotography) then you will be OK
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Post by howie1 on Mar 9, 2017 19:24:07 GMT
Thanks for the advice guys The 130mm newt is a SW Photo reflector so should hopefully have enough focus leeway I also have a 80mm refractor but the focuser is a bit rubbish and slips out of focus easily I have a Star discovery mount and a HEQ5 Pro mount ( although still struggling with getting this polar aligned ) I will have to check the piggy bank to see which option I can afford but they all seem similar in price HEQ5 Pro is a great mount. I keep meaning to get around to making a video to show how easy it is to Polar Align. Must do that sometime soon. The thing is, even with camera's being used to do your 'observing', you do not have to be absolutely precisely polar aligned ... if you are doing exposures less than a minute. The built in hand controller PA routine is easily capable of getting you enough accuracy to go 60 to 90 seconds unguided with very little star trail. Again, I really must get cracking and do vid on PA. And for anyone reading this, the methods I use work for any goto EQ mount ... not just the HEQ5. cheers Aussie Howie
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Post by davy on Mar 9, 2017 20:58:45 GMT
I have the heq5 pro myself and added the extension tube a dual saddle,, I use eqmod for alignment ect,, if I had an observatory I would be on it all the timer tweaking settings via eqmod
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robrj
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home town/country: Escondido, CA
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Post by robrj on Mar 10, 2017 18:48:45 GMT
I thought I would add this just for completeness in case anyone else happens into this thread. I've used a ZWO camera with a 130SLT. The lip around the ZWO cameras is a 2" face so it will sit in a 2" focuser. For my 130SLT, it's an advantage because the 1.25" adapter sits inside the 2" adpater, which pushes the camera out a bit. By using it in a 2" focuser I get a little more inward focus travel but it will come to focus with either 1.25" or 2" in the 130SLT. If it's just shy of coming to focus, one could try moving the mirror forward slightly with the collimation bolts.
On the Skywatcher Dobs, the focuser hole itself is a 2" hole. To use eyepieces, you would either put in a 1.25" adapter or a 2" extender. So with the ZWO camera, I can put it directly into the focuser hole without an adapter. It gives me so much infocus, that I can use a 0.5x focal reducer.
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Post by Deleted on Mar 10, 2017 22:48:28 GMT
Great thanks for the advice Gazza1000
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Post by Deleted on Mar 10, 2017 23:10:45 GMT
Looking forward to that video on polar alignment Howie Paul
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