The Canon HJ21ex7.5B was specifically developed to support high-end HD production.

Especially where minimization of focus breathing (unwanted alteration to angle of view that accompanies manipulation of the focus control), high imaging performance, extended focal range and a modestly wide angle constitute core production requirements for drama and documentary program origination.

The Canon HJ17ex7.6B IRSE features:

- 3-group Internal Focus System
- HDTV Production use
- Digital Drive Unit
- X-Element & Power Optical System
- Equipped with Canon's original Rotary Encoder Device