topic Live View Help in EOS DSLR & Mirrorless Cameras

Live View Help

yedpaul — Sat, 25 Jan 2020 18:23:10 GMT

Hi thanks for the Help. I hope you can help ? I have everything enabled for Live View on my 80d and when I am in manual mode and shutter priority mode in Live View I can adjust and see the Histogram move as the screen gets lighter or darker ( exposure simulation )....but that does not happen when I am in Aperture Mode under Live View... I adjust the aperture and while Exp Sim is valid nothing changes with the Histogram or screen … is it not supposed to? as the other 2 modes I mentioned do? Any Help? thanks

Re: Live View Help

Waddizzle — Sat, 25 Jan 2020 19:00:18 GMT

What is the maximum aperture of your lens? What were your exposure settings in each mode?

Re: Live View Help

yedpaul — Sat, 25 Jan 2020 23:45:39 GMT

Well thanks for the help,,,, getting more confused. I just noticed than in Tv mode while adjusting Shutter Speed the aperture is stuck at 1.8 on my nifty fifty and 2.8 on my Tamron when I am in Live View or not ? Not sure why Aperture would not be adjusting when changing Tv. But all is fine in Av Mode change Aperture and Shutter speed changes accordingly. So not sure why Aperture is stuck in Tv mode. Still confused on Exposure Simulation in Live View the ICON appears in the screen but perhaps EXP SIM is not supposed to work in Tv or Av mode ( Live View ) thanks all

Re: Live View Help

jrhoffman75 — Sun, 26 Jan 2020 00:45:29 GMT

" I just noticed than in Tv mode while adjusting Shutter Speed the aperture is stuck at 1.8 on my nifty fifty and 2.8 on my Tamron when I am in Live View or not ? Not sure why Aperture would not be adjusting when changing Tv. "

Is the lighting level so low that aperture needed to be wide open?

Re: Live View Help

RobertTheFat — Sun, 26 Jan 2020 02:07:21 GMT

@jrhoffman75 wrote:
" I just noticed than in Tv mode while adjusting Shutter Speed the aperture is stuck at 1.8 on my nifty fifty and 2.8 on my Tamron when I am in Live View or not ? Not sure why Aperture would not be adjusting when changing Tv. "

Is the lighting level so low that aperture needed to be wide open?

My guess was going to be the same as John's. One way to test that might be to turn on auto-ISO. Then if the aperture can't change, the ISO setting should.