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Thread: Handling dew on ZWO Fisheye?

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    Default Handling dew on ZWO Fisheye?



    Trying to figure out how I could go about handling the dew problem if and when I start doing the time lapse for the Geminid meteor shower I was thinking about this issue because the one day I was dumb enough to leave my other ZWO camera outside and a monsoon came out or no where I ended up having water get into the fisheye lens I'm kinda thinking this is gonna be a problem with the dew.

    So not sure what I can do to try and see moisture from building inside the lens.
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    Default Re: Handling dew on ZWO Fisheye?

    Set up a small fan to continuously blow a low volume stream of ambient temp air across the lens. This should keep the lens from dropping below ambient and thus not allowing (or at least significantly delaying) the formation of dew. This low volume air flow should not affect the images the camera is capturing.

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    Default Re: Handling dew on ZWO Fisheye?

    I did read about that while I was waiting on replies, I do however have a small USB fan I bought a couple of years ago off eBay, I guess I'll use this if nothing else comes up I was thinking about a DIY heat strap problem is their is no way I can think of to wrap a strap around it, and if so it would need to be as thick as a pencil
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    Default Re: Handling dew on ZWO Fisheye?

    I am building an Allsky camera. I am planning to put it under a dome lens like this one and have a home made dew heater inside the camera dome.
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    Default Re: Handling dew on ZWO Fisheye?

    There are a number of usb dew heaters. I found one from Protage on amazon for 15$. I use it on my Rokinon 24mm and my ed80 and ed102. You just need a decent usb battery pack.
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