Amazon has the Neewer TT560 External DSLR Flash (Canon/Nikon) for $42 with free shipping. Features 8 steps of power output with LED indicator, slave mode and test button.
Features:
- Compatible with Canon Digital EOS and Nikon DSLR cameras
- Power Management: Switch to the ON, the flash will start charging (the charging indicator is dim).
- For a test flash, press the test button. After use, press the ON/OFF to OFF to power off.
- Red charging indicator lamp flickers in every 1s; it indicates low battery.
- The flash unit has 8 steps of power output control which indicated by 8 pieces of LED.
- Guide Number:38 ( ISO 100 )
- Flash Mode: M, S1, S2
- Vertical Rotation Angle :0~90 degrees
- Horizontal Rotation Angle: 0~270 degrees
- Power: 4xAAsize batteries ( Alkaline or Ni-MH are usable )
- Lighting Times: 100-1500 times ( AA alkaline batteries used )
- Recycle Time :approx 0.5-5.5s ( AA alkaline batteries used )
- Light Quantity Output Control :with 1/8 - stop increment
- Color Temperature: 5600K
- Flash Duration :1/800s~1/2000s
- 100% Brand New. 3 Months Warranty by Seller.