This QHY 0.5mm M54 Spacer is designed for those who have very strict back focus requirements. Combined with the proper adapter kit for your set-up, the 0.5mm spacer can be used for precise adjustment.
This QHY 0.5mm M54 Spacer is designed for those who have very strict back focus requirements. Combined with the proper adapter kit for your set-up, the 0.5mm spacer can be used for precise adjustment.