import 'package:lightmeter/utils/log_2.dart'; import 'photography_value.dart'; class NdValue extends PhotographyValue { const NdValue(super.rawValue); double get stopReduction => value == 0 ? 0.0 : log2(value); @override String toString() => 'ND$value'; } /// https://shuttermuse.com/neutral-density-filter-numbers-names/ const List ndValues = [ NdValue(0), NdValue(2), NdValue(4), NdValue(8), NdValue(16), NdValue(32), NdValue(64), NdValue(128), NdValue(256), NdValue(512), NdValue(1024), NdValue(2048), NdValue(4096), NdValue(8192), NdValue(10000), ];