The BG-90 holds 2 EN-EL3E batteries or 6 AA batteries to offer double-length shooting time. It also features a vertical shutter release that makes shooting with the camera in a vertical position just as comfortable as shooting horizontally.
Specifications:
- Supports features such as AE and FE lock, with access to the Index/Reduce button, main dial, AF-Frame Select buton, and Aperture/Exposure Compensation Button.
- Improves stability.
- compatible with Nikon D80 and D90
