~~NOCACHE~~
Please use this tool cautiously. The close focus when using a macro extension tube can vary based on unique design of the taking lens. The results produced by this tool can be +/- 10%. This means that a distance can be off by several inches in certain cases. Please [[wiki:contact|contact us]] if you have any issues using this tool or have any recommendations for updates.
Macro Extension Tube Calculator
New Close Focus Distance:
New Far Focus Distance:
New Total Focus Range:
Imperial to Metric Conversion
If needed, convert feet and inches to millimeters to use the calculator above.
(Use feet in decimal format or combine feet and inches.)