« on: February 23, 2015, 11:33:37 AM »
Who can tell me why one should use an ISO of 204,800???
These specs does not seem very logic compared what you can get now.
In 2004, I heard the same thing about ISO 3200.
In 2011, I heard the same thing about ISO 12,800.
In 2013, I head the same thing about ISO 25,600.
I've been in plenty of extreme low-light conditions where I could see easily but I couldn't take pictures, even with an f/1.4 prime at ISO 12,800.
I did a little test one time to see what ISO it would take to get a picture about like I could see with my eyes after a full dark adaptation, at the same equivalent shutter speed (about 1/10th). My eyes can do black and white at an f-stop of about f/3.5 and an ISO of about 2 million when compared with a digital camera.
What I meant of course is the quality of the image. I would love a 20.000 iso performance with the same result as 400 iso nowadays.