Apertura 5x 1.25" APO Barlow (A-5XB1)
Accessory

Apertura 5x 1.25" APO Barlow (A-5XB1)

highpointscientific.com/.../apertura-5x-apo-1-25-barlow-lens-a-5xb1
TypeFocal modifier / field corrector
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