lens-club.rulens-club.ru/public/files/pdfs/989cedf885776e2fdbc0f0d3e76a036b.pdf · The SP...
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lens-club.rulens-club.ru/public/files/pdfs/989cedf885776e2fdbc0f0d3e76a036b.pdf · The SP flat-field 2 X tele-converter is a superior performance 5-groups 6-element converter specially