Originally posted by rawr I know these shots are just a test, but no-one would normally consider using ISO 12800 for such a night scene 'landscape' shot, especially if they were interested in detail preservation, and had access to a tripod. IS0 200 or 400 + f5.6 + a sturdy tripod would probably be how one would normally shoot such a scene.
If you look at the other shots in his folder, you'll see he does use a low ISO. I thought
IMGP7188 | Flickr - Photo Sharing! taken at ISO100 with a K-01 turned out well.
Regarding the optimum settings for shooting the scene in question: the settings used, 0.3s, f/9, ISO12800 indicates a Light Value of 1.1 LV. While Stagnant mentioned that a gust of wind stuffed up his ISO100 shoot, if the wind was still enough you'd want to use base ISO. (I've had great difficulty myself shooting long exposure shots on a windy night.) Suitable settings for this LV, without use Bulb mode, would be 30s, f/9, ISO125 or 30s, f/8, ISO100.
This was shot with the kit lens set to 50mm FL, so stopping down to f/9 was a good idea. If shooting with a 50/F1.4 lens, and DOF was not an issue, (and it wasn't so foggy), I've have used f/4-f/5.6 here i.e. 8s, f/4, ISO100 or 15s, f/5.6, ISO100.
But let's say, that due to the wind, you didn't want to go slower than 0.3s shutter speed. I think the shot, as rendered, is blown too much. (As mentioned he did not make any adjustments.) But the in-camera highlight blowing is ADC-clipping rather than FWC saturation, since 128x of digital gain is being applied. So instead of shooting at ISO12800, for the same exposure settings (the same Scene Luminance, Shutter Speed, f-stop), I'd have shoot at ISO1600 (the last stop to use analogue gain), and boosted 3 stops (8x) in PP raw development to get to an equiv. ISO12800 rendering brightness level, while playing with the top of the Tone Response Curve to prevent the Digital Number maxing out. (Although, I'd probably end up boosting it less than 3 stops anyway.) This would have given 3 stops more headroom during the capturing phase. If you were to just apply 3 stops of boost in PP then you'd still end up with the same blown highlights. But since you can still alter the shape of the TRC at this time, you can still make adjustments so the highlight is rendered below the max. DN limit.
Dan.
---------- Post added 08-03-14 at 08:51 ----------
Stagnant, I've downloaded your PEF. Thanks for making it available. I've got an athletics meet to shoot today so I'm a bit busy, but when I get time, I'll make up a SP 5, RT, DCU 5 composite comparison image and present it here. (I don't have LR.) That will confirm your WB & noise performance results, and add RawTherapee into the mix.
Dan.