Skip to main content
replaced http://photo.stackexchange.com/ with https://photo.stackexchange.com/
Source Link

Canon's new Rebel T4i (a.k.a. EOS 650D) has a new "hybrid AF" mode, which allows continuous AF during video, but only when used with one of the new STM lensesSTM lenses.

I've seen chatter on the web forums where it's suggested that this is a greedy move from Canon in order to force people into buying new lenses. I understand that STM allows a better AF experience during video, but is there a technical reason an STM motor is a hard prerequisite?

Canon's new Rebel T4i (a.k.a. EOS 650D) has a new "hybrid AF" mode, which allows continuous AF during video, but only when used with one of the new STM lenses.

I've seen chatter on the web forums where it's suggested that this is a greedy move from Canon in order to force people into buying new lenses. I understand that STM allows a better AF experience during video, but is there a technical reason an STM motor is a hard prerequisite?

Canon's new Rebel T4i (a.k.a. EOS 650D) has a new "hybrid AF" mode, which allows continuous AF during video, but only when used with one of the new STM lenses.

I've seen chatter on the web forums where it's suggested that this is a greedy move from Canon in order to force people into buying new lenses. I understand that STM allows a better AF experience during video, but is there a technical reason an STM motor is a hard prerequisite?

edited tags
Link
chills42
  • 23.7k
  • 7
  • 86
  • 136
Tweeted twitter.com/#!/StackPhotos/status/211722924288253952
Source Link
mattdm
  • 143.6k
  • 52
  • 421
  • 745

What technical reasons prevent Canon's new hybrid AF working with non-STM lenses?

Canon's new Rebel T4i (a.k.a. EOS 650D) has a new "hybrid AF" mode, which allows continuous AF during video, but only when used with one of the new STM lenses.

I've seen chatter on the web forums where it's suggested that this is a greedy move from Canon in order to force people into buying new lenses. I understand that STM allows a better AF experience during video, but is there a technical reason an STM motor is a hard prerequisite?