Pentax 18mm f/3.5 SMC K-Mount Manual Focus Lens {Built-In Filter}

Keh Model# 241981
 

$0.00

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* Item pictured for illustrative purposes only, actual item not pictured. See ‘Notes’ next to grade for included items.
Description Details

This is an Ultra wide lens and is based on 35mm or full-frame format. It is wider than 24mm. These lenses are sometimes described as “fisheye”. Ones of this type will give a distorted image compared to a non-fisheye which will keep perspective normal. Generally they can focus much closer than a standard or regular wide-angle lens. In some cases, the filter is either built-in or screws in to the rear of the lens. If you use this lens on a less-than full-frame camera, you will have to multiply the focal length by a factor based on the exact format you are shooting. In most cases, this is about 1.5x, but can vary slightly. There are focal lengths in this type available – 8mm, 15mm, 16mm, 17mm, and 20mm. 

Additional Information
General
Brand Name Pentax
Focus Type Manual focus (only)
Lens Mount Pentax K (SMC, SMC-M)
Lens Type Wide-Angle
Max Focal Length 18mm
Min Focal Length 18mm

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