Find which lens is closest to the stage in such device

Reference no: EM13548482

What type of lenses do I use to build a simple two lens opera glass? Which lens is closest to the stage in such device?

Reference no: EM13548482

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Find which lens is closest to the stage in such device : What type of lenses do I use to build a simple two lens opera glass? Which lens is closest to the stage in such device

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