Manufacturer’s Description

The Vivitar Series 1 Teleconverter for Pentax (7 Elements) with a Pentax mount effectively doubles the focal length of your lens, maintaining its resolution and contrast. The optical design featuring 7 elements yields field flatness and edge sharpness compared to converters with fewer elements.

The Specs

Additional Specifications
Parent Retsku B009NF3OZQ
Quick Glance

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