Sony A1 Image Quality: ISO Invariance — Which ISO to Use, When a Push is Just Fine, Noise and Hot Pixels
This page evaluates image quality in terms of noise and hot pixels at native ISO versus pushing a lower-ISO exposure during raw conversion. Equivalent results for the two approaches are termed ISO invariance.
Examples of ISO invariance and ISO variance are shown with the Sony A1, together with guidelines on setting camera ISO for the best results.
- Examples of ISO invariance and variance with the Sony A1.
- Best ISO to use, and why.
- Falsifying the myth of highlight loss at high ISO.
Includes images for comparison from ISO 100 to ISO 3200.