Type
Type	E-TTL II/E-TTL/TTL autoflash, Ring-type flash unit for close-ups
Compatible cameras	Type-A EOS cameras (E-TTL II/E-TTL autoflash) Type-B EOS cameras (TTL autoflash) ^*Please refer to Compatibility information for details
Compatible lenses	RF35mm F1.8 MACRO IS STM RF100mm F2.8 L MACRO IS USM(requires Macrolite Adapter 67) EF 50mm f/2.5 Compact Macro EF 100mm f/2.8L Macro IS USM (requires Macrolite Adapter 67) EF 100mm f/2.8 Macro USM EF 100mm f/2.8 Macro EF 180mm f/3.5L Macro USM (requires Macrolite Adapter 72C) MP-E 65mm f/2.8 1-5x Macro Photo EF-S 35mm f/2.8 Macro IS STM EF-S 60mm f/2.8 Macro USM
Flash Unit
Guide Number (ISO 100, meter)	Both sides firing: approx.: 14 Single-side firing: approx. 10.5
Flash coverage	Approx. 80° vertically, 80° horizontally
Flash Time	Normal flash: Approx. 1.8 ms or shorter / Quick flash: Approx. 2.3 ms or shorter
Color temperature information transmission	Flash color temperature information transmitted to camera when flash is fired
Filter	A 67 mm filter can be attached on the front face of the flash unit
Focusing Lamp	Coverage Upper lamp: Approx. 60° vertically and 60° horizontally Lower lamp: Approx. 45° vertically and 45° horizontally Light intensity: Adjustable
Exposure Control
Exposure control system	E-TTL II/E-TTL/TT autoflash, manual flash
Effective flash range	Normal flash: Approx. 20mm - 5m Quick flash: Approx. 20mm - 2.7m (at Guide No. 7.5, in meters) High-speed sync: Approx. 20mm - 2.7m (at 1/250 sec.) ^* Both sides firing, with f/2.8 lens, ISO 100 ^* Distance from the flash unit
Flash mode	Both sides firing, single-side firing
Flash ratio control	8:1 - 1:1 - 1:8, 1/2-stop increments
Flash exposure compensation	±3 stops in 1/3- or 1/2-stop increments
FEB	±3 stops in 1/3- or 1/2-stop increments (when used with flash exposure compensation)
FE lock	Enabled with the camera's Multi-function button or FE lock/ AE lock buttons
High-speed sync	Supported
Manual flash	Normal flash: 1/1 - 1/128 power (1/3-stop increments) High-speed sync: 1/1 - 1/64 power (1/3-stop increments)
Flash exposure compensation	Flash exposure confirmation lamp lights
Modeling flash	Fired with camera's depth-of-field preview button or MR-14EX II's test flash button
Flash Recycling
Firing interval (recycling time)	Normal flash: Approx. 0.1 - 5.5 sec. Quick flash: Approx. 0.1 - 3.3 sec. ^* When using AA/LR6 alkaline batteries
Flash-ready lamp display	Lights in red: normal flash available Lights in green: Quick flash available
Optical Transmission Wireless Sender Function
Connection Method	Optical Pulse
Channel	Channel 1-4
Receiver unit control	Up to 3 groups (A, B, C)
Transmission range	Indoors: Approx. 0.2 - 5m (at the front) Outdoors: Approx. 0.2 - 3m (at the front) Approx. 60° vertically and 80° horizontally
Power Source
MR-14EX II power source	Four AA/LR6 alkaline batteries ^* AA/LR6 Ni-MH and AA/LR6 lithium batteries also usable
Battery Life (number of flashes)	Approx. 100 - 700 flashes (When using AA/LR6 alkaline batteries)
Power Saving	Power off after approx. 90 sec. of idle operation
External power source	Compact Battery Pack CP-E4 can be used
Others
Custom functions	12
Personal functions	3
Dimensions (W x H x D)	Flash Unit: 129.6 × 112.1 × 25.3 mm Control unit: 69.6 × 118.8 × 71.4 mm
Weight	Approx. 455g (MR-14EX II only, excluding batteries)

All specifications above are based on Canon's testing standards.
Product specifications and external appearance are subject to change without notice.

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Macro Ring Lite MR-14EX II