DSLRKIT Lens Focus Calibration Tool Alignment Ruler Folding Card(Pack of 6)
- Multifunctional for Lens: Calibrate lens focus, measure the FoV and estimate the sharpness.
- Easy to Use: Quick setup in seconds and measuring in minutes with online video tutorial..
- A Handy Tool: Easily getting the Field of View of the lens without calculation.
- Clean and Tidy: Foldable card style, folded and unwrapped repeatedly for quick setting and better storage.
- Application: Focus calibration, sharpness estimation and field of view quick measuring for M12, CS-Mount, C-Mount and DSLR lenses..