f-stop/sensor size/full frame equivalence - need a summary table or link: Open Talk Forum: Digital Photography Review
Focal length conversion for APS-C designed lenses: Beginners Questions Forum: Digital Photography Review
f-stop/sensor size/full frame equivalence - need a summary table or link: Open Talk Forum: Digital Photography Review
![Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter](https://www.newsshooter.com/wp-content/uploads/2013/01/Screen-Shot-2018-03-15-at-9.20.42-AM.png)