 "Canon Backpack" " Canon Backpack - 6229A003 Camera & Camcorder Cases CDW.com
"Made of rugged nylon Canon Deluxe Backpack 200EG holds up to 2 camera bodies, 4 lenses, plus accessories. Due to its lightweight construction it features a well-arranged divider system for a secure storage and an easy access, padded shoulder straps and a comfortable back padding. Add to this tripod carrying straps and a front webbing ideal for lashing light jacket, sweater, etc.

Inside measurements: 10"(W) x 14.75"(H) x 5"(D)" 
 "EF 50mm f/1.4 USM"@en "Canon EF USM | Canon Online Store"@en
"Standard & Medium Telephoto Lens"@en 
 Focal Length & Maximum Aperture 50mm 1:1.4 Lens Construction 7 elements in 6 groups Diagonal Angle of View 46° Focus Adjustment Overall linear extension system with USM Closest Focusing Distance 0.45m / 1.5 ft. Filter Size 58mm Max. Diameter x Length, Weight 2.9" x 2.0", 10.2 oz. / 73.8 x 50.5mm, 290g