francoisdriessen
26th of October 2009 (Mon), 10:36
In using the 7D in movie mode:
Cinematography rule: pulling a zoom without adjusting your aperture will cause the f number to change. (by nature of the definition of f stop number).
Problem with the 7D is that as you zoom, it automatically pulls aperture in 1/3rd stop increments back to the set F number you started on, causing exposure jumps in the shot. (I'm not talking about Tv/Av auto exposure modes - in M mode in stead of letting nature determine the F as you zoom it keeps adjusting it to stay at the digital setting the body has it on. ) E.G.: 135mm/f5.6 zoom out to 28mm should be 28mm/f3.5, but the camera takes it un-gracefully to 28mm/f5.6
Called Canon to see if there is an override that would allow the F to slide, but had no luck so far. My gut feel is by nature of the 7D's operation, Zoom is not a feasible cinematic technique shooting movies with the 7D.:cry:
Anyone out there maybe has a workaround that might bring the (subtle) joy of Zoom to 7D?
Cinematography rule: pulling a zoom without adjusting your aperture will cause the f number to change. (by nature of the definition of f stop number).
Problem with the 7D is that as you zoom, it automatically pulls aperture in 1/3rd stop increments back to the set F number you started on, causing exposure jumps in the shot. (I'm not talking about Tv/Av auto exposure modes - in M mode in stead of letting nature determine the F as you zoom it keeps adjusting it to stay at the digital setting the body has it on. ) E.G.: 135mm/f5.6 zoom out to 28mm should be 28mm/f3.5, but the camera takes it un-gracefully to 28mm/f5.6
Called Canon to see if there is an override that would allow the F to slide, but had no luck so far. My gut feel is by nature of the 7D's operation, Zoom is not a feasible cinematic technique shooting movies with the 7D.:cry:
Anyone out there maybe has a workaround that might bring the (subtle) joy of Zoom to 7D?