A1 ISO Settings

Gerald K. Hendricks · Dec 2, 2003

Can anyone give me advice regarding the use of the ISO settings -- as I remember in film camera's -- the lower ISO film was associated with higher resolution -- how does this work out with digital camera's -- i.e. if I increase shutter speed and increase F stop by going to ISO of 800 instead of "ISO auto" -- to reduce shake and increase depth of field at max zoom -- am I giving up resolution?? Which is best "ISO auto" or the higher manual settings when you are using mostly the max optical zoom?? -- Gerry
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Gerry

Geir Ove · Dec 2, 2003

As often as you can: It gives the best pictures (least noise). You can even use ISO 100 for night shots: As a matter of fact it will give the best results there as well.

Only use higher ISO values when you need shorter shutter times.

The rule is: For each ISO doubling, you can also "double " the shutter time. Thus, if at ISO 100 you get 1/10 sec. ISO 200 will give 1/20 sec, 400 will give 1/40 sec and 800 will give 1/80 sec shutter time

Geir Ove

Gerald K. Hendricks said:
Can anyone give me advice regarding the use of the ISO settings --
as I remember in film camera's -- the lower ISO film was associated
with higher resolution -- how does this work out with digital
camera's -- i.e. if I increase shutter speed and increase F stop by
going to ISO of 800 instead of "ISO auto" -- to reduce shake and
increase depth of field at max zoom -- am I giving up resolution??
Which is best "ISO auto" or the higher manual settings when you are
using mostly the max optical zoom?? -- Gerry
--
Gerry

Norman2000 · Dec 2, 2003

The main problem with using higher ISO settings is the introduction of noise (artefacts) into your shots. You will also get a more grainy look to your pictures, but if this is what you desire you can achieve it in a more predictable way in Photoshop or virtually any image editing software.

On the whole you should stick with either auti ISO or the lowest setting you can get away with.

Norman

jscher2000 · Dec 2, 2003

With the DiMAGE 7 series, the Auto ISO could vary wildly. See this chart:

http://www.dalibor.cz/minolta/iso.htm

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A1 ISO Settings

Gerald K. Hendricks

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Geir Ove

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Norman2000

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jscher2000

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