Z7 auto ISO seems seriously flawed

Started 4 months ago | Discussions thread
SaltyPeanut Senior Member • Posts: 1,116
Re: Z7 auto ISO seems seriously flawed

vockman wrote:

Auto Iso, only makes senses to me in manual mode and it works great on the Z. Other wise you have two auto functions going on and it is hard to figure it out.

Not that hard to figure out.

The camera tries to stay at base ISO and above your min shutter speed. When light is low, camera stays at base ISO and lowers shutter speed down to the minimum shutter speed that you set. Once at the min shutter speed, if light is still low, camera stays at the min shutter speed and now starts to increase ISO up to the max ISO that you set. If light is still low, the camera stays at the max ISO that you set, and now it begins to go lower than the minimum shutter speed to achieve exposure - the other choice would've been to go above the max ISO but Nikon decided to go below the min shutter speed instead.

The Auto ISO icon flashes on screen when the max ISO has been reached to let you know that the camera is now going below your min shutter speed. Simply keep shooting if the lower shutter speed still works for you, increase auto ISO limit, or switch to manual to lock in a min shutter speed and max iso, knowing that you will capture underexposed shots this way. Alternatively, you may stay in A mode and simply dial in a negative exposure compensation, to keep your shutter speed up (haven't tried this, but *should* work).

 SaltyPeanut's gear list:SaltyPeanut's gear list
Nikon Z6 Nikon AF-S Micro-Nikkor 105mm F2.8G IF-ED VR Nikon AF-S Nikkor 58mm f/1.4G
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