I just bought a Graflex Pacemaker Speed Graphic with a 101 Tessar lens. (1)Is this a good quality lens? (2) Is this a good lens for Landscape, scenic type shots? (3)What type filter or holder would I use for this lens? (4) Where can I buy a lens Hood for the 101? And (5) In 35mm format I use the 50mm and a 135mm lens, what would be the equivalent with this camera...Gene