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All sky cam alternative

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#1 volk317

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Posted 11 May 2021 - 02:14 AM

I'd like to reach out to the folks with some DIY all sky camera experience and/or fisheye lenses at night. I have been interested in setting up a couple all sky cameras and I am basically set on using something like a ZWO camera for one of my all sky cams but I am curious to know if a fisheye lens on my Canon 6D full frame dslr would work for an all sky cam too.. something like the Rokinon 12mm f2.8 fisheye. If anyone has ever tried using a dslr as an all, or at least almost all, sky cam for filming meteors as video and/or as pictures for a time laps, I am curious to know how it worked out for you. I greatly appreciate any shared experiences and knowledge/advice that you might have 🙏

#2 luxo II

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Posted 11 May 2021 - 04:48 AM

It will work sure, and an intervalometer function is needed and remote control of the camera will be a help.

There are many tutorials on this eg
https://m.youtube.co...h?v=_kC1nKlIPU0

https://expertphotog...sky-time-lapse/

Edited by luxo II, 11 May 2021 - 05:01 AM.


#3 kisstek

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Posted 11 May 2021 - 04:20 PM

Don't a bunch of the ZWO cameras come with a wide angle lens?

 

The FoV of your Rokinon 12mm will depedn on how big the sensor of the ZWO camera is. The closer the ZWO sensor is to full frame, the closer the FoV will be to what you get from your 6D.

 

There are FoV calculators on the net or you could entry the lens and the ZWO camera info into Stellarium and get a visual feeling for what the FoV will be.



#4 BGRE

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Posted 11 May 2021 - 06:21 PM

A fisheye lens has a large amount of barrel distortion, unless a FOV calculator takes this into account it will underestimate the actual FOV.



#5 StarmanDan

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Posted 11 May 2021 - 06:44 PM

The ZWO cams come with a 170 degree fisheye lens which works ok. I ended up buying a 1.55mm lens which gave me 185 degree fov. It works quite well.

https://www.cctvbest...is-fisheye.html

I use All Sky Eye for monitoring and recording events. Here is a pass of the ISS recorded by my cam.

https://imgur.com/gallery/HB0d2cT

And a pic of the camera in its housing before putting it up.

https://imgur.com/gallery/dsN6g8R


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