Vocas Backfocus Chart and White Card

For Adjusting Lens Back Focus, White Card for White Balance Adjustments, Framing Guides for 16:9 and 4:3. The Backfocus and White Card by Vocas is a handy tool combining a focus chart white card and framing guide. It is useful in the field for checking and adjusting back focus on ...For Adjusting Lens Back Focus, White Card for White Balance Adjustments, Framing Guides for 16:9 and 4:3.

The Backfocus and White Card by Vocas is a handy tool combining a focus chart white card and framing guide. It is useful in the field for checking and adjusting back focus on professional video cameras with interchangeable lenses. As a white card it is used to adjust the white balance of video cameras to different color temperature of light in changing locations.

The framing guide can be photographed as an aid in post production to establish the aspect ratio for the project.