What is the "Umbra shield" ?

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Saul
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What is the "Umbra shield" ?

Post by Saul »

What is the "Umbra shield" ?

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JohnyM
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Post by JohnyM »

Nothing special. Piece of metal. I just use leftover m42 tubes for that purpose.
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Saul
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Post by Saul »

JohnyM wrote:Nothing special. Piece of metal. I just use leftover m42 tubes for that purpose.
Dziekuje ! Kind a http://www.photomacrography.net/forum/v ... 419#237419 ...
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JohnyM
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Post by JohnyM »

Not exactly. It's used on inverted microscope and placed between condenser and subject (assumed petri dish). It's just plain sheet of black material obscuring condenser lens.
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pbraub
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Post by pbraub »

Or you could turn down the lights in your room...

This however is often not possible in multi-user labspaces. The CKX is often located in normal cell culture labs for quick inspection of cultures and not in dedicated microscope rooms for measurement which are usually dark.
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