Comments on: Photography 101.7 – ISO

By: Lumix Cameras

Lumix Cameras — Sat, 12 Mar 2011 01:30:53 +0000

Good examples using the different ISO settings. I was surprised to see there was no noise on the image at 800 ISO because many other cameras show noise at that ISO setting. However I think modern digital cameras have a higher tolerance to noise these days.

By: Frankie

Frankie — Tue, 11 Jan 2011 23:40:57 +0000

Thanks, very helpful. Looking forward to experimenting with this.

By: malayvahan

malayvahan — Mon, 27 Jul 2009 11:35:04 +0000

i wish i could attend the classes

By: Char

Char — Thu, 07 May 2009 12:07:02 +0000

Thank you for the valuable lessons. Looking forward to the next one.

By: Sarah

Sarah — Mon, 20 Apr 2009 02:46:28 +0000

I’ve just started playing around a lot with ISO lately. So many people seem to want to leave it down around 100, when I generally keep it at 200-400. I figured out why however at my son’s last tball practice – my children are just too fast. I need fast shutter speeds to capture them and unless it’s super sunny out, that means I need the 400 to catch them in action and have a lot fewer blurry shots. After photographing them so much I realize why I’m always so tired at the end of the day – they never hold still! *L*

By: Sybren

Sybren — Fri, 17 Apr 2009 08:19:31 +0000

What I miss in this bog post is what I miss in most explanations of ISO: the effect on the colours. Higher ISO doesn’t just give you more noise, it also makes the colours less saturated, more bland. This may be an important factor for you to choose a lower ISO setting.

By: tzjiang

tzjiang — Thu, 16 Apr 2009 16:45:31 +0000

Nice Article. I agree with Tigraine. Neil, can you post the EXIF data(at least the ISO) for those 2 pictures. Only the stars has EXIF.
Thanks

Tzjiang

By: Macro Photography

Macro Photography — Thu, 16 Apr 2009 15:26:00 +0000

These are great lessons. I learned some great and valuable information.

By: Tom

Tom — Thu, 16 Apr 2009 13:32:28 +0000

Fletch, thanks for the feedback.
You are obviously right. Exposure compensation will necessarily change aperture and shutter speed. Thanks for clarifying that one for me.
And yes, we certainly need some way of determining the sensitivity of the sensor, whatever we may want to label the parameter. Myself, I did not think of the possibility of having an analogue adjustment of sensitivity, but I do look forward to it!
Again, thank you for the clarification

By: Jeffrey Kontur

Jeffrey Kontur — Thu, 16 Apr 2009 13:16:42 +0000

@Tom- Exposure Compensation is a slightly different animal than ISO. ISO is part of the exposure triangle (the other two parts being aperture and shutter speed.) From these, your camera determines “proper” exposure. Exposure compensation simply tells your camera to deliberately deviate from “proper” exposure and by how much. Essentially, you are telling the camera to deliberately over or under expose an image from what it thinks is the correct exposure. If you changed the ISO, you would change your camera’s calculation of what aperture and shutter speed to use so that it could still arrive at a “proper” exposure but it would not know that you wish for it to purposely over or under expose from this baseline. After all, the camera is just a machine.