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Prime Focus on Newtonian : astrophotography
- https://www.reddit.com/r/astrophotography/comments/ybr0p/prime_focus_on_newtonian/
- Prime Focus on Newtonian. I have an old Meade 7" newtonian that I would like to use for distance and astrophotography, but I am having trouble getting it to focus. I can't move the focuser in far enough to make the camera resolve the image. I am currently using a Sony nex-5 with a t adapter barlow. I've tried with and without the barlow with no ...
Newtonian telescope modified for prime …
- https://www.youtube.com/watch?v=u_ufa_RcQaE
- This video is a follow up to my video on newtonian focus problems in prime. The third method I mentioned was shortening of the telescope tube in order to get the focal plane to reach the camera...
Newtonian telescope how to find focus dslr …
- https://www.youtube.com/watch?v=7VAuW6GoTnM
- A common problem people face with newtonian reflectors in prime with a dslr is achieving focus. It's referred to as a lack of inward focus. I ran into this p...
Newtonian for astrophotography - Discussions
- https://stargazerslounge.com/topic/169234-newtonian-for-astrophotography/
- A Newtonian is not by any means as simple as it gets. A well made refractor is as simple as it gets but is generally far more expensive. Briefly, the problems associated with Newtonians, especially fast ones, are collimation, orthogonality, coma and frontal area presented to …
Newtonian focus, in or out? - Beginning Deep Sky Imaging - Cloudy …
- https://www.cloudynights.com/topic/816032-newtonian-focus-in-or-out/
- Infinity focus is always inward of the focus for nearer objects. So, if you can get a tree, for example, in focus, infinity focus will be inward from that. But if you can't get anything to focus, you have no reference point. Coma correctors generally move the focal point outward.
astrophotography with a newtonian - Stargazers Lounge
- https://stargazerslounge.com/topic/278108-astrophotography-with-a-newtonian/
- The skywatcher p-ds newtonians are geared for imaging the primary mirror is that bit closer so a camera will focus which means for visual use with an eye piece an extension tube is used. (Very simplified view of the change there is bound to be other differences). Do you know what the diffeences are with the astrograph to your telescope.
Astrophotography with a newtonian : telescopes - reddit
- https://www.reddit.com/r/telescopes/comments/je5b3j/astrophotography_with_a_newtonian/
- So now your focal ratio is F/10 (4x longer exposure), and focal length is 1,500mm (2x the potential tracking errors). So the scope becomes 8x harder to image with, requiring a mount that's much more stable to avoid star trails. The minimum mount necessary would be something like the SkyWatcher EQ6-R, which is $1,500.
DSLR Astrophotography with a Newtonian/Dobsonian
- https://www.cloudynights.com/topic/511751-dslr-astrophotography-with-a-newtoniandobsonian/
- As mentioned before, the quickest route to fix your focus issue is probably to move your mirror cell up. However, since you have a truss tube, it might not be a problem to adjust how those are connected to shorten up the distance. I would recommend you try imaging at prime focus instead of using the Barlow, unless you're going after planets.
Why a Refractor Telescope Is Your Best Option for Astrophotography
- https://astrobackyard.com/refractor-telescope-astrophotography/
- Prime-focus astrophotography involves attaching your camera directly to the focuser of the telescope, with no additional eyepieces or lenses between them. That means that the native focal length of the telescope decides the …
PRIME FOCUS METHOD And The Chuck Norris Effect
- https://astronomerguide.com/prime-focus-method/
- The method of prime-focus in astrophotography means the telescope gathers light and magnifies the picture captured by the camera. This implies that it must maintain precise alignment with the stars. The prime focus approach is more challenging to master than the other methods.
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