This Pentax Focusing Screen is compatible with various models including SB-21, SD-21, SA-23, SE-20, SA-21, and SI-20. It allows for precise focusing and is made in Japan with high-quality materials. This item is perfect for Pentax camera users who want to improve their focusing abilities.

This Focusing Screen is a custom fit for Pentax cameras and is brand new in an open box. It has not been modified and is not a screen protector. Purchase this Pentax Focusing Screen for enhanced focusing capabilities during your photography sessions.