De tovább olvasva ez azért nem akkora baj:
If your Canon EF lens doesn't show up on this list, it does not feed distance data back to the camera through the electronic mount.
As a reminder, distance data is never the only factor that controls flash exposure in E-TTL II. It is an optional data point, no more and no less. E-TTL II remains functional with *all* Canon EF lenses, but when using direct flash, E-TTL II is at its best when distance data is available.
Szerk:
Meg hát a 300D-d se tudja az E-TTL II-t úgyhogy ne izgulj (a 10D se tudja).
Szerk2:
Ja és itt a magyarázat is:
In general, if a lens uses a ring type USM motor, it returns distance information and so is E-TTL II compatible. Not all USM lenses use ring USM motors. Those which do not offer full time manual focus ( e.g. the Canon EF75-300/4-5.6 USM), do not return distance information. Lenses using AFM (arc form motors) do not return distance information (e.g. 50/1.8, 24/2.8).
Viszont ennek tükrében azt nem értem, hogy a 28-135 IS USM miért nincs a listában?!
[Szerkesztve]
Feel Good Inc.
