+ It is very easy and quick to make. It takes less than 5 minutes to make it.
+ The mounting/unmounting is very quick
+ When unmounted it fits your pocket.
+ You will need only white cardboard, foil (e.g. from chocolate), and adhesive tape.
Enjoy :)
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Scissors, pencil. For more accurate result cutting knife is also desirable.
Cut a rectangle of cardboard which has about 12cm width and about 15cm height. Exact dimensions are not critical.








































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I think for your application it will work better if you take a bigger cardboard and to bend it above the objective, reducing shadow area.
Less light will reach the ceiling, but the card itself will act like a ceiling.
Try it, It's interesting to see your photos!
thank you for this project : this week end I have a go with this idea.