Timeline for New Pi camera - any good for Astrophotography?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 4, 2021 at 16:59 | comment | added | Michael C | Light gathering as a function of sensor size only comes into play if you can fill the frame with your subject. When doing astro work with a lens that projects an image of the target that is only a few pixels wide, it matters not how many more pixels the sensor has that do not include the target. | |
| Sep 24, 2020 at 13:50 | comment | added | Tim Campbell | ISO doesn't change exposure. It does not change the sensitivity of the sensor. ISO (gain) isn't applied until the exposure ends. Sensor size matters to the point that the telescope/camera combination have a field of view that fits the imaging target. It has no affect on the exposure. | |
| May 6, 2020 at 14:30 | comment | added | szulat | while it is generally true that more is better, in some areas of astrophotography you don't gain anything by using a bigger sensor, because your target only occupies a few milimeters, like in planetary imaging. (not saying that the rPI camera is good for this purpose - but it might be!) | |
| May 6, 2020 at 14:21 | comment | added | szulat | "iso 800" reflects the small pixels size, not a "poor light collecting ability" (whatever that is). iso is a kind of "light sensitivity per area", so you can have any iso you want regardless of the sensor size, if the resolution is small enough. | |
| May 1, 2020 at 15:36 | comment | added | juhist | I don't know what the lens is. The moon picture is at the raspberrypi.org/blog/… page. | |
| May 1, 2020 at 12:40 | comment | added | user2702772 | @juhist is that the old pi camera or the new one, released yesterday? Was it using a telescope, a lense or...? Because that's about the minimum I was thinking of achieving. | |
| May 1, 2020 at 7:24 | comment | added | juhist | Well, ok, the Raspberry Pi camera is surprisingly close to the cheap 55-250mm lens so I guess it could be used. | |
| May 1, 2020 at 7:23 | comment | added | juhist | @user2702772 Here is a picture of the moon with Raspberry Pi camera: raspberrypi.org/app/uploads/2016/11/2016-10-14-moon_orig.jpg | |
| May 1, 2020 at 7:22 | comment | added | juhist | @user2702772 Here are two nice pictures of moon, one with a crop sensor camera, one with a full frame camera: photo.stackexchange.com/questions/113531/… and you won't get those pictures with a Raspberry Pi. | |
| May 1, 2020 at 5:11 | vote | accept | user2702772 | ||
| Jun 8, 2020 at 8:55 | |||||
| Apr 30, 2020 at 21:07 | comment | added | OnBreak. | @user2702772 photographing at night is one of the hardest things to do - camera's record light and there is significantly less of it at night (somewhat of a "duh" statement but really, appreciate this fact). The ability to get as much light into the camera is huge! You have only so much time before the rotation of the earth moves what you are trying to record - meaning you need to record the image in that limited time or buy a tracker...which would defeat the purpose of the Pi anyway because $$$. The Pi has limited surface area and ISO range. Two things that are going to hurt in this endeavor | |
| Apr 30, 2020 at 19:47 | comment | added | user2702772 | Possibly reasonable for Lunar pictures? | |
| Apr 30, 2020 at 17:46 | comment | added | juhist | The problem is that its noise performance is very similar to a DSLR at ISO 40 000, but its exposure will the the same as a DSLR at ISO 800. Most astrophotographers need to use a higher ISO than that. So, you need to use a very long shutter speed, which causes star trails. I think for experimentation with photography it could be something useful -- you probably have full manual control of the camera. That's the most important aspect. The problem with this is that if the results are poor, you won't get interested in photography. | |
| Apr 30, 2020 at 17:42 | comment | added | user2702772 | You say " at ISO 800 will be very similar to a good DSLR / mirrorless full frame camera at ISO 40 000". Does that imply that you would consider it a cheap starting point, for experimentation? | |
| Apr 30, 2020 at 17:21 | history | answered | juhist | CC BY-SA 4.0 |
