What sort of camera would you use?

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Discussion Overview

The discussion revolves around the challenges and considerations involved in selecting a camera for capturing an image of the Milky Way from a hypothetical probe. Participants explore various aspects including field of view (FOV), camera types, and the feasibility of such a mission.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that a normal SLR camera with a wide-angle lens could be adapted for installation on a probe, but acknowledges the mission's complexity and the dependence on how far from the galactic plane the probe would be.
  • Another participant emphasizes the need to arbitrarily choose a field of view and discusses the implications of perspective distortion and shading when flattening the image with software.
  • Concerns are raised about the IR sensitivity of CMOS chips for astrophotography, noting that modifications are often necessary for SLR cameras.
  • Some participants express skepticism about the feasibility of capturing an image of the Milky Way from above its plane, suggesting that such an endeavor is not currently possible.
  • There are repeated mentions of the project involving calculations of distance, travel time, costs, and technological advancements needed for such a mission.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility of capturing an image of the Milky Way from a probe, with some expressing doubts about the practicality of the mission while others engage in theoretical discussions.

Contextual Notes

Participants reference various technical aspects related to camera selection and astrophotography, but there are unresolved questions about the specific requirements for capturing the desired image and the technological limitations involved.

BL4CKB0X97
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Hi. I am doing a project concerning getting a picture of the milky way, in a similar manner of the artists impressions artwork( I don't actually intend to try it obviously). As I don't have a clue what camera to use as an example because I need the FOV to work out how far it needs to travel perpendicular to the centre of the galaxy to get a complete picture.

What existing camera (if any) would work best on the probe? Was thinking of using the ones from New Horizons then I realized that's for planetary imaging so probably wouldn't work well.
 
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This is a tough question to answer because while the camera doesn't necessarily have to be very specialized (a normal SLR type with a wide angle lens, adapted for installation on the probe might work), the mission itself is way, way beyond our capabilities. How wide of a fov you need is going to depend on how far away from the galactic plane you get.
 
russ_watters said:
This is a tough question to answer because while the camera doesn't necessarily have to be very specialized (a normal SLR type with a wide angle lens, adapted for installation on the probe might work), the mission itself is way, way beyond our capabilities. How wide of a fov you need is going to depend on how far away from the galactic plane you get.
That's what my project was about. I am going to work out the distance required to get a picture, then go through all the space drives that have been theorised,provide detail(time to travel,cost,time required until technology exists and how it works), determine which one is the best option and work out how far away we are technologically and try and determine a time frame,estimate cost and maybe come up with a few ways to lower price or speed up travel.i also want to write about what humanity needs to achieve before its possible.It seems like it will be fun.
So I could put use any distance and work from that, say 15 kpc? Or would 30 be better?
 
BL4CKB0X97 said:
That's what my project was about. I am going to work out the distance required to get a picture...
Then you will just need to arbitrarily pick your field of view. You can literally go as wide as you want and flatten it with software, but you will have to decide for yourself how much perspective distortion and and shading is acceptable (because the galaxy is not perfectly flat/thin).
 
The IR sensitivity of CMOS chips is an issue for AP. That is why IR mods are widely advertised for SLR's.
 
BL4CKB0X97 said:
That's what my project was about. I am going to work out the distance required to get a picture, then go through all the space drives that have been theorised,provide detail(time to travel,cost,time required until technology exists and how it works), determine which one is the best option and work out how far away we are technologically and try and determine a time frame,estimate cost and maybe come up with a few ways to lower price or speed up travel.i also want to write about what humanity needs to achieve before its possible.It seems like it will be fun.
So I could put use any distance and work from that, say 15 kpc? Or would 30 be better?
I am still seriously struggling to understand what all that almost meaningless word jargon has to do with a camera for taking a photo of the milky way ??Dave
 
the milky way on my 14mm ultra wide angle lens on a full frame DSLR camera

upload_2017-1-21_0-12-29.png


Dave
 
Chronos said:
The IR sensitivity of CMOS chips is an issue for AP. That is why IR mods are widely advertised for SLR's.
Yeah, that's why I said "adapted". Astro cams may use the same chips as DSLRS, but they aren't the same physical camera.
 
davenn said:
the milky way on my 14mm ultra wide angle lens on a full frame DSLR camera

View attachment 111862

Dave
That photo was taken from Earth. The OP wants to take a photo from above the plane of the galaxy so he can see the whole thing.
 
  • #10
russ_watters said:
That photo was taken from Earth. The OP wants to take a photo from above the plane of the galaxy so he can see the whole thing.

well that isn't going to happen for our galaxy huh :wink::wink:

refer to my earlier post #6

the best that that could be visualised would be say a pic of the Andromeda galaxy
 
  • #11
davenn said:
well that isn't going to happen for our galaxy huh :wink::wink:
It can happen in a thought experiment.
 

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