# Canon FD - Sony E-mount Speed Booster Ultra 0.71X used price and value

Source: [Kamarvo](https://kamarvo.com/model/canon-fd-sony-e-mount-speed-booster-ultra-0-71x) · 2026-10-13
Value by age: https://kamarvo.com/depreciation?add=canon-fd-sony-e-mount-speed-booster-ultra-0-71x