New answers tagged lens-adapter
In the case you have things lying around, you can go this route: http://petapixel.com/2013/12/10/diy-adapter-allows-gopro-cameras-use-interchangeable-lenses/ However, I agree, that it might come in more handy (and most likely cheaper and with better image quality) to use a smartphone or some other camera.
I did experiment with different manual lens (in total of 23 M42 lens of various makes and f numbers) and I can say a few things about manual lens, these are: Older lens doesn't have many modern coatings such as anti-flare which is very important in night photography. If you like flares, then no issues here. Older objectives may have lower have lower light ...
If you want to make your minimal focus point nearer, you could try technics derived from macro photography, such as an extension tube or close-up lens filters. I don't know which one will make the correction you want but it probably exists.
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