Visible crew/equipment: When C-3PO is on the conveyor belt, if you look in the reflection in his head you can see the camera crew.
Visible crew/equipment: This can only be seen in the widescreen version. When Han, Leia and Chewie venture out of the Falcon to investigate the cave they're hiding in on the asteroid, as they walk towards the left of the screen you can see the edge of the tarpaulin sheet they're standing on as well as the faint outline of a crew member trying to get out of the camera shot.
Visible crew/equipment: Chewbacca enters the "junk" room to collect the remains of Threepio, and in the close-up scene of Threepio's head on the conveyor belt, you can see a reflection of the camera and several of the crew. (01:23:10)
Visible crew/equipment: A few seconds after Slave 1 (Boba Fett's ship) takes off there's a close-up of R2 and the camera and two crew members are reflected in his head. (01:43:15)
Visible crew/equipment: While in hot-pursuit, Han and Chewie are desperately trying to fix the Millennium Falcon (just after C-3PO informs them of the damaged hyperdrive, making light-speed impossible). In one shot Chewbacca has a bare human thumb, without gloves or makeup, and can be easily spotted in the lower left part of the screen. (00:38:00)