View Full Version : ISO?
16th of July 2001 (Mon), 15:21
I got my G1 a week ago and have been generally pleased with the pictures save a few. Those turned out very grainy and over-exposed even though they were taken in RAW format.
I believe that they were taken with ISO 400 in broad daylight. Is that the reason for the bad pictures?
In comparison, the night shot of Montreal (4.5 seconds, ISO400) did not turn out ugly.
[these pictures have not been doctored or excessively compressed]
17th of July 2001 (Tue), 13:39
Alright, looks like I am gonna have to respond to myself! :)
It seems that most, if not all, of Pekka's marvellous pictures were taken at ISO 50, so I am somewhat positive that it's the right direction!
17th of July 2001 (Tue), 14:17
I couldn't get your pictures to come up. But the answer you have already discovered, every G1 user who places a priority on image quality uses ISO 50 whenever possible (even at night, or perhaps especially at night). This kind of limits what you can take a picture of as your shutter speeds will be longer and motion blurr may be an issue for dim shots of moving objects without a flash. Lots of camera memory will help, as you can take tons of shots and a few will likely look ok. Higher ISO images will always be grainy, perhaps OK for snapshot quality and where flash is not possible. Certainly its much better than no picture at all.
Regards, Mike K
21st of July 2001 (Sat), 17:34
Mike is right. Use the lowest ISO where possible. Your CCD sensor on your G1 will produce a lot of noise at ISO400. As Mike already pointed out that this will require you to leave the shutter open for a lot longer than usual which will cause the light object to blur abit.
Anyway... your pictures taken during the day seens abit over expose... the first thing I will try is retake the picture with a different metering method (ie. from weighted average to spot metering) and maybe try using the exposure compensation (to under expose it) or try using a different white balance (custom).
hope this help!
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