forDSLR white balance cap 77 mm

• For all cameras with 77 mm lens thread
• The cover is used for setting white in exteriors and interiors.
• It also serves as a lens cap.

Set up

1. attach the cap to the lens
2. turn off AF and focus at infinity
3. in the device menu, set the custom white balance option
4. take a picture in the given lighting,
5. you have set the white balance in the current lighting conditions.