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A7s iso 12800

Shashin

Well-known member
Probably for the same reason Sony and other companies post ISO 25,600, 51,200, 102,400, or 204,800 ISO capability all over their boxes and in the specs when in reality they only provide useable ISO3200, 6400, and in a few cases 12,800. It's just bragging rights and marketing. Few people ask if they should because they can. It's no different than the megapixel wars 5 years ago.
Actually, I prefer manufactures do that. That leaves me to decide what is acceptable under whatever conditions I am in. ISO 12500 is not very good on the RX-1, but sometimes I use it. A noisy image is better than a no image at all.
 
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