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Commons:Featured picture candidates/File:Wooden walkway leading to a hut with straw roof at sunset with colorful sky in Vang Vieng Laos.jpg

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File:Wooden walkway leading to a hut with straw roof at sunset with colorful sky in Vang Vieng Laos.jpg, featured edit

Voting period is over. Please don't add any new votes.Voting period ends on 11 May 2023 at 11:56:02 (UTC)
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  • I was just curious because often people use such settings only for an intentional long-exposure effect, but I saw no benefit for an intentionally long exposure with this subject. The settings are understandable if you needed them for the necessary depth of field etc. It may not have been necessary to go down to ISO 50. Some cameras have a real base ISO value below 100; e.g. on Nikon’s D850 or Z7 using ISO 64 will give us less noise and more dynamic range than with ISO 100. But on cameras with a base ISO value of 100 lower ISO values are usually just pulled from ISO 100, i.e. we get a longer exposure, but no improvement in dynamic range or regarding noise. According to Photons to Photos this also applies to the 5D IV (see 1 and 2 for dynamic range; 3 shows a small read-noise benefit for ISO 50, but 4 shows a small disadvantage, so it’s even). This means that one could use ISO 100 with the same quality. Use what you prefer. ;–) --Aristeas (talk) 12:37, 4 May 2023 (UTC)[reply]
  • It's not a contradiction. ISO 50 will produce less (shot) noise than ISO 100 because you're increasing exposure. In most modern sensors, using ISO 50 is equivalent to using ISO 100 with a +1 exposure compensation (that's why Aristeas called it "pulling", a term borrowed from the old film days). In a nutshell: ISO 50 and 100 are usually interchangeable, provided that you are doing ETTR to maximise sensor saturation. I've added the "usually" because there are sensors that behave differently (e.g., on certain Panasonic cameras, see this thread where Bill Claff - the founder of Photons to Photos - digs into this topic). A final word on Photons to Photos data: don't read too much into small differences. Bill doesn't test all the cameras himself, he instead compiles data from volunteers that follow his protocol. The protocol is strict but there is always a bit of room for variation. --Julesvernex2 (talk) 09:48, 5 May 2023 (UTC)[reply]
Confirmed results:
Result: 16 support, 0 oppose, 0 neutral → featured. /-- Radomianin (talk) 13:20, 7 May 2023 (UTC)[reply]
This image will be added to the FP gallery: Places/Natural#Laos
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