This special T2-Ring for Canon DSLR Camera offers a extreme short light-path of only 1,5mm. Regular T2-Rings needs a light-path of about 11-12mm and if you have a close backfocus situation these certain millimeters are making the difference to reach the focus. 

• Special T2-Ring Canon - M42x0.75mm thread
• Extreme short T2 ring design with 1.5mm height
• Recommended for close backfocus setups
• Straight use with Canon DSLR
• Made from stainless-steel

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