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Old 17-07-2019, 10:41 AM
Poita (Peter)
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Diffuser/Opal Glass in Australia?

I need a 50mm diameter opal glass or similar diffuser to give a near lambertian diffusion from a LED COB.

I have found them at Knight Optical and Edmund Optics, but the postage is around $100 or more.

Does anyone know where to source such a thing locally in Oz?
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Old 17-07-2019, 11:22 AM
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DavidU (Dave)
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Just get a 50mm camera lens filter, remove the glass and then wet sand it with #800 wet and dry sandpaper, works a treat and would be very cheap.
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Old 17-07-2019, 07:04 PM
Hemi
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Pardon the ignorance, can I ask what you use a lambertian diffuser for? Im guessing for flats but am a relative newbie so no laughing.

Cheers

Hemi
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Old 19-07-2019, 02:18 PM
Poita (Peter)
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To be honest, it isn't for Astronomy, but I thought I'd ask in here as there are so many optics gurus.
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