Canon CJ12EX4.3B IASE Lens

Ground Breaking 2/3" 4K Wide Angle Portable Lens

Canon CJ12EX4.3B IRSE Lens

Canon CJ12EX4.3B IASE Lens

Ground Breaking 2/3" 4K Wide Angle Portable Lens

SKU: 1467C002AD

Cat no: 18134

  • Exceptional focal length
  • Stunning optical performance
  • Lightweight and compact design
  • Effortless use with existing Canon HD Lens accessories
Price match

Usually delivered in 7-10 days

£15,495.00 (ex vat) £18,594.00 (incl vat)

Finance from £348.33 per month - view more details

Canon CJ12EX4.3B IASE Lens

Ground Breaking 2/3" 4K Wide Angle Portable Lens

The Canon CJ12EX4.3B IASE Lens is a ground-breaking 2/3” 4K wide angle portable lens with 12x zoom and focal length that extends from an exceptional 4.3mm at the wide end to 52mm. Compact and lightweight, it’s the perfect way to bring high-quality 4K resolution to ENG and studio applications. Easily make the move to 4K shooting with this high quality 2/3” 4K ultra-wide angle portable zoom lens.

  • 4K resolution 2/3” portable wide angle lens with 12x zoom
  • Exceptional 4.3mm focal length at the wide end extends to 52mm (104mm using the built-in 2x extender)
  • Stunning optical performance right to the edge of the image when paired with a 2/3” 4K compatible camera
  • Combines 4K quality with lightweight design and compact size comparable to HD lenses for comfortable on-shoulder shooting
  • Sustained 4K performance even when using the built-in 2x extender
  • Proven, high-quality 16-bit encoder captures precise information on zoom, focus and iris and allows support for aberration correction immediately on start-up
  • 3 20-pin connectors make for effortless use with existing Canon HD lens accessories and virtual systems.

Canon’s first 2/3” 4K portable lens
The CJ12ex4.3B is the first in Canon’s 2/3” 4K lens range. A lightweight portable wide-angle lens featuring a 12x zoom, its exceptionally short focal length is just 4.3mm at the wide end, enabling users to capture impressive wide-angle shots like car interiors. Focal length extends to 52mm with full zoom applied (104mm using the built-in 2x extender) to create even more shooting options and possibilities. Current HD lens users will find the CJ12ex4.3B integrates seamlessly with 2/3”4K broadcast cameras and setups while delivering consistently stunning performance in a wide range of ENG and studio environments.

Breathtaking optical performance
Striking 4K resolution and high contrast are sustained uniformly from the centre to the edge of the image thanks to Canon’s proprietary optical design technologies. Contrast and resolution remain consistent throughout the focus and zoom ranges, in both the HDTV and 4K frequency bands. The lens features a host of clever features that prevent colour bleeding and minimise ghosting and flare: leaving you with stunning quality right to the edge of the image.

Lightweight, compact and portable
The CJ12ex4.3B’s size and weight are similar to comparable HD lenses despite its significantly higher resolution. So users can easily apply the same shooting style as they would with a standard HD lens while enjoying all the advantages of 4K. At just 2.1kg and 248mm total length, the lens can sit comfortably on the shoulder for extended periods. Canon’s ergonomic drive unit further helps to minimise user fatigue: a big plus for shoulder-mount shooting.

Smart, reliable and interoperable
Operating the CJ12ex4.3B is straightforward, and great results are easy to achieve, thanks to the lens’ breakthrough design. 4K performance is maintained throughout the entire zoom range; and the 0.5 second zoom speed is the same as found on HD lenses. So you won’t need to adjust the way you shoot to enjoy the lens’ 4K quality. There is no need to invest in new accessories because the zoom and focus demands for existing Canon HD portable lenses are fully compatible.

Proven 16-bit encoding
When you need to start shooting at speed, there’s no frustrating wait to initialise the lens at power-on, because the new generation digital drive unit includes Canon’s proven 16-bit encoder that enables immediate support for shooting with aberration correction on start-up without initialization. This 16-bit encoder gives you highly-detailed positional information on zoom, focus and iris, so you can match virtual images and actual images with precision and ease. Three 20-pin connectors make for easy virtual operation in full servo mode when the lens is used in a virtual system.

Key Features:

  • Exceptional focal length
  • Stunning optical performance
  • Lightweight and compact design
  • Effortless use with existing Canon HD Lens accessories

Product Specification

Object Image Format 2/3"
Aspect Ratio 16:9
Zoom Ratio 12x
Focal Length Range 4.3 to 52 mm
Focal Length Range with Extender 8.6 to 104 mm (with 2x extender)
Angular Field of View
  • 96.3° x 64.2° at 4.3 mm
  • 10.5° x 5.9° at 52 mm
Angular Field of View with Extender
  • 58.3° x 34.9° at 8.6 mm (with 2x extender)
  • 5.3° × 3.0° at 104 mm (with 2x extender)
Maximum Relative Aperture (F-Number)
  • 1:1.8 at 4.3 to 40 mm
  • 1:2.4 at 52mm
Maximum Relative Aperture (F-Number) with Extender
  • 1:3.6 at 8.6 to 80 mm (with 2x extender)
  • 1:4.8 at 104 mm (with 2x extender)
MOD From Front of Lens 1'(0.3 m)
Scene Object Dimensions at MOD
  • 30.1 x 17" (76.4 x 43.0 cm) at 4.3 mm
  • 2.3 x 1.3" (6.0 x 3.4 cm) at 52 mm
Scene Object Dimensions at MOD with Extender
  • 15.0 x 8.46" (38.2 × 21.5 cm) at 8.6 mm (with 2x extender)
  • 1.2 x 0.6" (3.0 × 1.7 cm) at 104 mm (with 2x extender)
Dimensions (L x W x H) 9.8 x 6.4 x 4.3" (25 x 16 x 11 cm)
Weight 4.6 lb (2.1 kg)

This product includes:

  • Canon CJ12EX4.3B IASE Lens

Canon European Warranty System Information

In the event that a Canon product develops a fault, our customers are covered by the Canon European Warranty System (EWS) which ensures that the fault is resolved free of charge for a limited period of time after purchase (terms and conditions apply).

Terms and Conditions
The EWS is comprised of two different service offerings and the offering that is applicable to you is determined by your location and the product you have purchased. For most Canon consumer products, a Return To Base service is offered. If a product develops a manufacturing fault during the warranty period then it must be returned to a Canon approved repair facility where it will be repaired free of charge by Canon authorised technicians. Your product will be returned to you when the repair is complete.

EWS Warranty Overview FAQs

Q: What warranty is applicable on Canon products purchased within Europe?
A: In general, Canon offers the European Warranty System (EWS) for products purchased in:-

Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, the Netherlands and the United Kingdom.

Please view the full Terms and Conditions of this warranty.

Q: Do I have to physically register my product with Canon for the European Warranty System (EWS) to apply or be activated?
A: In general, there is no legal requirement for customers to register a product with Canon for EWS warranty purposes. Registering a product with Canon via Canon iD will allow us to send you targeted promotional materials and updates regarding your products. Some occasional promotional warranties may require registration with Canon, but the specific Terms & Conditions of the promotion will specify this if applicable.

Q: What information regarding warranty should I find in the box when I purchase a Canon product?
A: For European Warranty System (EWS) applicable countries, each product box will generally contain a EWS Warranty Card in the box.

Q: Is it necessary for me to complete and return any documentation to Canon in order to register my European Warranty System (EWS) warranty?
A: It is not necessary for you to return any documentation to Canon in order to register for the European Warranty System (EWS). If you wish to specifically request a warranty repair under the European Warranty System (EWS) then it will always be necessary for you to provide Canon with the original valid proof of purchase (including original date of purchase) for the product in question and, in some cases, a completed warranty card may also be required. Please refer to the specific country in question for specific requirements.

Q: What documentation is required in order to make claim a European Warranty System (EWS) warranty repair?
A: If you wish to specifically request a warranty repair under the European Warranty System then it will always be necessary for you to provide Canon with the original valid proof of purchase (including original date of purchase) for the product in question and, in some cases, a completed warranty card may also be required. Please refer to the specific country in question for specific requirements. Promotional warranty offerings may also specify further requirements, so please refer to the specific Terms & Conditions of any promotional offers (if applicable)

Q: How do I register a European Warranty System warranty for a Canon product that I have received as a gift?
A: In general, there is no legal requirement for customers to register a product with Canon for EWS warranty purposes. If you wish to specifically request a warranty repair under the European Warranty System then it will always be necessary for you to provide Canon with the original valid proof of purchase (including original date of purchase) for the product in question and, in some cases, a completed warranty card may also be required. This proof of purchase requirement (including original date of purchase) is also applicable to products received as a gift.

Q: How long is a typical Canon European Warranty System (EWS) valid for?
A: In general, Canon products are offered with a 24 month European Warranty System warranty. Exceptions can and do apply and it is often the case that retailers offer their own warranty extension promotions. If in doubt, please refer to the warranty section of the applicable Canon country support website or to your retailer (in the case of retailer warranty extensions).

Q: If I buy a Canon product outside of the countries for which Canon offers the European Warranty System (EWS), will my product still be covered by the European Warranty System (EWS) if I am resident in a EWS member country?
A: Details regarding the specific warranty offered per product will generally be contained in the product box. In general, products will be covered by a warranty that applies to their specific sales region and it will be necessary for customers to return any products to the applicable region in order to claim a warranty repair. Canon does not generally offer a global warranty unless specifically mentioned for specific products / regions.

Q: If I have bought a Canon product and I later decide to give this / sell this to someone else within the specified European Warranty System (EWS) warranty period, does this EWS warranty transfer with the product?
A: Yes, Canon products are covered by the European Warranty System (EWS) regardless of whom the actual product owner is. However the start and end date of the warranty will apply to the original purchase date and not the date of subsequent sale. If you wish to specifically request a warranty repair under the European Warranty System (EWS) then it will always be necessary for you to provide Canon with the original valid proof of purchase (including original date of purchase) for the product in question and, in some cases, a completed warranty card may also be required. Please require to the specific country in question for specific requirements.

Q: If I have bought a Canon product covered under the European Warranty System (EWS) and I travel to another country that is not covered by the EWS and the product requires repair, will I be offered a warranty repair?
A: Technically, Canon warranties are only applicable within the region in which the product has been sold and for which specific warranty details were included in the box. Canon does not generally offer a global warranty unless specifically mentioned for specific products / regions. We would always advise Canon customers to contact local Canon representatives to see what assistance is possible. In some cases it may be necessary for you to pay for any applicable repairs and to then attempt to reclaim this from Canon (this only applies if the fault repaired is covered by the terms of EWS – for example customer misuse is excluded) when you return to the European Warranty System (EWS) region. To support your claim we would always advise you to retain any applicable documentation relating to charges incurred / repairs handled.

EWS Contact Details

UK +44 (0)207 660 0186

Canon UK

Return To Base
On-Site (Repair & Exchange)
On-Site Repair & Exchange: Mainland UK (including bridged islands) only.
Ireland +353 16 990 990

Canon Ireland

Return To Base
On-Site (Repair & Exchange)
On-Site Repair & Exchange: Mainland Ireland (including bridged islands) only.


Full Terms and Conditions
To register a product, or to see Canon's full Terms and Conditions, please click here.


* Finance available to UK incorporated limited companies only

Photolease Company Finance from £348.33 (ex VAT) per month.

All lease figures below exclude VAT. Finance available to UK incorporated limited companies only.

Term (months) First Payment Monthly Payments Admin Fee Total Payment
60 £448.33 £348.33 £100.00 £20,999.66
48 £512.17 £412.17 £100.00 £19,884.02
36 £620.32 £520.32 £100.00 £18,831.60
24 £835.70 £735.70 £100.00 £17,756.86
12 £1,481.07 £1,381.07 £100.00 £16,672.83

Select "Photolease finance" as the payment option at checkout. Finance is only available to UK incorporated limited companies. A minimum basket total of £1,000.00 applies, Photolease will normally contact you within one hour of receipt of your application if sent during business hours of 9am - 5pm (BST), Monday to Friday.

Photolease Ltd  is an independent finance company specialising in leasing equipment to the creative industry. Visit photolease.co.uk for more information as well as their terms and conditions. Offer is subject to status. Terms and conditions apply. Written details available upon request.

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