35mm f/0.9 for $350 | Tested and Explained: Physics of Speed Booster and Crop Factoring

by Super User, 5 years ago
0 0
Link to the previous video:

Jimmy Leak: https://www.instagram.com/_jleak/
Jimmi-Kai: https://www.instagram.com/jimmi.kai/

The lens opening is determined by the opening of the iris inside of the lens, not by the front element.
In the tests, I should have compensated for the concentration in light with ISO. This explains why the speed booster setup gave a brighter image than other setups in these settings.

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