Differentiation Factors between Good and Bad Conversion Lens

INTRODUCTION

The purpose of this article is to provide information to potential and existing user of wide angle conversion lens (auxiliary lens) to identify quality factors which
differentiate between good quality (reasonable priced) conversion lens from the low quality (low priced) conversion lens.

We will be reviewing the picture quality taken with Olympus E-P2 with 2 different brands of conversion lens, assessment to be based on the following factors
alongside with picture illustration:

1. Center and side resolution
2. Distortion
3. Vignette (darkening of 4 corners)
4. Multi Coating

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Differentiation Factors between Good and Bad Conversion Lens

 

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