Specifications
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1x Flattener
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|
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（After attaching）80ED Focal length
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560mm
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（After attaching）80ED Focal ratio
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f/7
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Lens Number
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Triplet design(including one ED glass)
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Image circle
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APS-C
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Back Focus
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55mm（from the base of M48 male thread）
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Weight
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0.42kg
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Rear-end thread type
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M54×0.75 |
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Product Size Diagram
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1x Flattener 
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Installation
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1x Flattener 
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Optical Path Diagram
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1x Flattener 
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Spot Diagram
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1x Flattener 
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Longitudinal Aberration
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1x Flattener 
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relative illumination diagram
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1x Flattener 
