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glare or highlights on black beetle - poor diffuser ?

Started 5 months ago | Discussions thread
Mike Engles Senior Member • Posts: 2,573
Re: Thanks for the idea

You seemed to have posted a minute before mine. A lot of experimenting going on and looks like some progress in actually trying to observe what happens.

As I said before a foil baffle/.flat reflector gives a doughnut hotspot, but the centre looks good and possibly chimes with your idea of making a concave baffle/reflector?

This is actually fine for non reflective subjects.

So I started adding translucent baffles reflectors and that does 'cool' down the hotspot.

These are examples of that

It is 2 translucent sandwich bags, with thin tissue reflector baffles and then another bag making a sandwich, wrapped around my pudding bowl held with rubber bands.

This is a natural daylight hotspot on a tomato

This is my recipe

These are other examples of the recipe

This is a x2 using the foil hemisphere baffle/reflector. I cannot see the doughnut , it sometimes get lost in the shape, but could be an effect of the degree of magnification and the size of the spot

A next step for me might be to make a translucent spherical dome but with a large diameter, so the 'dominess' would be no more than 3-5 mm at the centre.

Concave is better or is it convex?

This is also the foil dome baffle/ reflector

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