USCamera Light Seal Placement Guide | Mamiya 500 1000 DTL TL Before doing anything, please go here. The information provided will improve the quality of your light seal kit installation. USCamera Light Seal Placement Guide | Mamiya 500 1000 DTL TL For more information on purchasing this kit, go here You are installing a 7 piece kit plus* for the Mamiya 500 1000 DTL TL This light seal kit includes. Lower channel seal, camera body – 1 x 1mm Upper channel seal, camera body – 1 Read More...