use of annalatic lens
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Anallatic lens is an additional lens used in the instrument. It is a special lens which is placed between the object glass and the eyepiece of the telescope in order to eliminate the additive constant (f+d). ... The lens in only provided in an external focusing telescope but not in the internal focusing.♥️
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Anallatic lens is an additional lens used in the instrument. It is a special lens which is placed between the object glass and the eyepiece of the telescope in order to eliminate the additive constant (f+d). ... The lens in only provided in an external focusing telescope but not in the internal focusing.
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