I purchased a Bower 8mm lens which is manual. The T2i that I have does no reading from the lens. What I see in the display when I turn the camera on, for example is:
Exposure time show: say 1/10
F stop does not show: F00
ISO Shows: say 200
So lets say I set the lens manually to 8mm, then on the camera I set ISO to 200. Then with teh camera in manual mode, as I turn the dial to increase time for shutter, it does show a dash under the minus 2 to +2 for exposure gauge.
I am presuming that when that dash gets under the 0 that is 'proper exposure time'. Would that be right? Would that be the case even though teh camera has no idea what F-Stop I have it set at?
I presumed no, but am finding it to not be that far off.
So, I thought I'd experiment with an app on my phone called Light Meter which has relatively good reviews. I can set the ISO setting on it, then point the phone camera at whatever I'm shooting, press a measure button, and it will tell me the exposure time for each Fstop. (Picture attached).
What I don't know about or understand, is that it also shows an EV number. I don't know what to do with or about that, if anything.
Interested in your feedback on this.