Shutter-Time-Calculator
OpenAstroTracker
Shutter-Time-Calculator | OpenAstroTracker | |
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12 | 6 | |
3 | 934 | |
- | 0.0% | |
2.6 | 0.0 | |
4 months ago | about 1 year ago | |
HTML | OpenSCAD | |
- | GNU General Public License v3.0 or later |
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Shutter-Time-Calculator
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The Lyrid Meteor Shower (22 April, 2023)
(Online calculator https://calc.loef.photos/ says 20/15/7 seconds max for it's rule of & npf calculations: 500 (major)/300 (slight)/200(pinpoint))
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Understanding Photo Stacking
Without a tracking mount you can use this calculator to determine what exposure time you can get away with without significant trailing. It depends heavily on the declination (basically the arc length between the north pole and the object you are pointed at), lens focal length, and pixel size of your camera.
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Milkyway panorama with Zodiacal light, Captured from Vattakanal, Tamilnadu.
This was a 14mm lens, most will say use 500 rule but I suggest you to use NPF rule if you want pinpoint stars(or it will have an option like slight trailing this is what I used) it showed 12 seconds I think, I went a bit over since I know 14mm is pretty wide and you can't see any trailing once it is wide
- Here's a list of all the fastest lenses ever made, by format and focal length
- M31 135mm?
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1 vs 2500: I couldn't afford an expensive Telescope or a Star Tracker so I took over 2500 shots of the Orion Nebula from a pretty light polluted city in Central India with just an entry level DSLR. Combined them together using a method called "Stacking", and this was the result [OC]
That method isn't that accurate anymore(some people use 400 or even 300 rule), but these days the recommended method is The NPF rule.
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Don't have an expensive Telescope or a Star Tracker? No problem. I couldn't afford them either so I took over 2500 shots of the Orion Nebula from a pretty light polluted city in India with just an entry level DSLR. Combined them together using a method called "Stacking", & this was the result [OC]
4) How to select your exposure length: If you take long duration exposures (let's say) 15-20s or something, what you will see are star trails where instead of pin pointed stars, you'd see them moving in a line, ruining our shot. To get sharper stars, either use the rule of 500 (beginner friendly) or the NPF rule (more accurate, but a bit more advanced). Make sure you take a few test shots, zoom in and check the focus and star trailing first before continuing.
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Please tell me if I’m doing anything wrong with my AP process.
I've made a Calculator some time ago that can help you decide on the expose times without a tracking mount. It might be usefull: https://calc.loef.photos/
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What are the best settings to take a picture with a Canon EOS RP with a 50mm RF lenses?
Seeing might have also been just not good enough. I saw an app called nightshift. Pretty good indications of how clear the sky is actually. Also, indeed have a look at the 'rules'. 500 rule might be a bit too crude. Suggest to check your camera and lens specs and fill them in at: https://calc.loef.photos/
- Open-csource Shutter Time Calculator
OpenAstroTracker
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I pointed my backyard telescope into deep space and took pictures of this tiny patch of sky for 32 hours to reveal galaxies at mind-boggling distances … millions to billions of light years away. [OC]
For anyone that wants to look at the details, the hardware and code on this one is all open source: https://github.com/OpenAstroTech/OpenAstroTracker
- SolidWorks or Fusion 360 assembly files available?
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Need a new hobby that will eat all your money? Try out Astrophotography with the mostly printed OpenAstroTracker!
...at GitHub
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Links
Software
- OpenAstroTracker: 3D-printed tracking mount for DSLR astrophotography
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Can't find a print file...
Here is the DigitalLevel addon, with the files you're looking for, on github: https://github.com/OpenAstroTech/OpenAstroTracker/tree/bd2f5f6694e6d3b48d44d4cb4f0637b45bb4ab15/Addons/DigitalLevel
What are some alternatives?
photo-stream - Self-hosted, super simple photo stream
BOSL - The Belfry OpenScad Library - A library of tools, shapes, and helpers to make OpenScad easier to use.
astrophotography_stack_align - Align sequence of star field / astro images taken with a stationary camera (stationary relative to all those stars light years away).
dotSCAD - Reduce the burden of mathematics when playing OpenSCAD
OpenSkyStacker - Multi-platform stacker for deep-sky astrophotography.
NopSCADlib - Library of parts modelled in OpenSCAD and a framework for making projects
hello-world - 3D printed LED "hello world!" sign powered by a wifi-enabled ESP8266 board.
fosscad-repo - Official FOSSCAD Library Repository
3d-models - Collection of self-designed 3D models made for FDM 3D-printing
hygrometer - DIY HA compatible Temperature & Humidity Sensor
sdfx - A simple CAD package using signed distance functions
sdf - A Go library for signed distance function shape generation. Read as 3D printing shape design.