Model Number: YN-460 II Brand Name: YongNuo Key Specifications/Special Features: Specifications:Guide number: 38 (at 35mm focal length, ISO 100 in meters), 53 (at 35mm focal length, ISO 200 in meters)Flash mode: M, S1, S2Power ratio: full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/7Number of flashes: approximately 100-1500, with fresh AA size alkaline batteries

Recycling time: approximately 0.1-5 sec, with fresh AA size alkaline batteries

Bounce flash:

• Vertical: up to 90°
• Horizontal: left 180°, right 90°

Flash speed: 1/800s - 1/20000s

Color temperature: 5600K

Slave mode S1: normal optic slave

Slave mode S2: pre-flash cancel slave

Power source: 4pcs AA-size battery - alkaline, lithium or rechargeable Ni-MH usable

Power saving: 30 min to power off, or 60mins to power off on the optical slave mode

Dimensions: 72 x 135 x 85mm

Net weight: 250g

Features:

• New upgraded Flash Speedlite for YN-460, more powerful and convenient
• We increased the Flash index from 33 to 38(at 35mm focal length ISO 100 in meters) and 53 (at 35mm focal length ISO 200 in meters)
• This YN-460 II has the output power fine-tuning function, if the 7 output power can't meet your demand, you can press + or - buttons to fine tune the output power of the flash with step length of 1/7 ev in order to obtain finer exposure control, so there are48 step length for you to choose (there is just 7 setup length for the first version)
• The recycling time is much faster than the first version
• Can be used in manual mode and slave mode (S1, S2 )

Advanced applications:

• Output power fine-tuning function
• Bounce flash
• Use reflection board to take photos
• Use wide-angle diffuser
• Rear-curtain sync
• Multiple flash application