Canon has recently launched a new lens, the catchily named Canon CN20x 50 IAS H E1/P1.

Yes that’s right, a 50mm zoom with 20x magnification giving us 50mm – 1,000mm range.  What’s more, it also has a built in 1.5x extender, so that’s 1,500mm at the tight end. Wow.

With a removable servo drive unit and the built in range extender, it looks like Canon have given us many of the benefits of the traditional broadcast lens, but in a S35 cine package ideal for 4K.  Quite a feat.

Available with an EF mount (E1) or PL mount (P1) the weight isn’t too bad either, just 6.6kg. That’s all very impressive but there has to be a compromise somewhere… well it’s not the fastest lens around.  T5.0 at 50mm rising to T13.35 at 1,500mm.  It’s unavoidable physics… imagine how big and heavy a lens of this range would be if it was any faster.



So ideal for sports and wildlife, or any extreme close-ups from a long way away.

There’s no confirmed pricing yet, but it’s probably not going to be cheap. Rumours are mostly in the £45,000 – £55,000 range which sadly makes this something I’m going to have to hire rather than own!


Mount EF (/E1 variant);
PL (/P1 variant)
Focal Length 50 – 1000mm (75-1500mm w/ 1.5xEXT)
Zoom Ratio 20x
Image Size Super35mm
Maximum Relative Aperture T5.0 at 50-560mm
T8.9 at 1000mm
T7.5 at 75-840mm
T13.35 at 1500mm (1.5x)
Iris Blades 11
Angular Field of View 1.78:1 – 24.6×13.8mm
27.6°x 15.7° – 1.4°x 0.8°
(1.5x) 18.6°x 10.5° – 0.9°x 0.5°

1.9:1 – 26.2×13.8mm
29.4°x 15.7° – 1.5°x 0.8°
(1.5x)- 19.8°x 10.5° – 1.0°x 0.5°
MOD from Image Sensor 3.5m / 11.5’
Object Dimensions at MOD 1.78:1- 24.6×13.8mm
139.3 x 78.1cm at 50mm / 7.3 x 4.1cm at 1000mm
(1.5x)92.9 x 52.1cm at 75mm / 4.9 x 2.7cm at 1500mm

1.9:1- 26.2×13.8mm
148.3 x 78.1cm at 50mm – 7.8 x 4.1cm at 1000mm
(1.5x)98.9 x 52.1cm at 75mm – 5.2 x 2.7cm at 1500mm
Front Diameter φ136mm
Approx Size (W x H x L) 175 x 170.6 x 413.2mm (EF mount)
175×170.6×405.2mm (PL Mount)
Approx Weight 6.6kg
Pitch of Focus/Zoom/Iris Gear Focus:0.8/0.5   Zoom:0.5   Iris:0.5


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