gsealy said:Famateur said:Interesting discussion so far.
I'm inclined to believe that if there's some sort of update to the 70D, it would be either a firmware update or a 70Da (for astrophotography, like the 60Da) -- in that order.
I'd hope it would be the former and that the firmware update would include exposure compensation for auto-ISO in manual mode.
In situations where light changes rapidly, I like to use auto-ISO with it limited to 1600. The downside is that it almost always over-exposes in outdoor situations. Because it's using ISO for the over-exposure, I get the double whammy of burned highlights and higher noise. If I could force it to dial back the exposure by a stop, that would really make life easier.![]()
This is an interesting post. I don't think a lot of people use auto-ISO. I use a Fuji X100T for street photography with auto-ISO as the light conditions change rapidly and I don't want to fiddle with settings and miss a shot. I have it set to max ISO at 3200, min shutter speed of 125 and aperture priority usually set to f4.0 (sharpest for the lens). If the camera can't get good exposure at those settings, then it lowers the shutter speed until the exposure is correct. I have not had a problem with overexposure although it does have an exposure compensation setting or I will stop it down.
I am a huge Canon guy except for this camera, just so that is clear. And I am not bragging on the X100T. The thing I wanted to mention is that the auto-ISO is a nice feature for certain conditions. How the camera chooses to get it's settings, that is the algorithm, makes a difference. Basically I want it to pick the lowest ISO consistent with a minimum shutter speed of 125. It seems to do that.
In fairness you are talking two (slightly) different things. On your X-T1 you are speaking of using exposure compensation in "Av" mode. You set a min shutter but let the camera pick. The 70D can do that. It's when you kick it to full manual, locking in an aperture and a shutter speed, but leaving Auto ISO on, that the camera does not allow one to adjust exposure compensation. It's kind of a weakness of nearly the entire Canon line. It has long bothered me why they left that out. My understanding is one can do it on a 1Dx (and 5D3?).
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