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markley02 · 05-26-2007, 03:12 PM

ISO is the number indicating a digital camera sensors sensitivity to light. The higher the sensitivity, the less light is needed to make an exposure.

Digital cameras automatically select the ISO but most have a setting to change it manually. Auto ISO generally works best for bright scenes.

Shooting at a lower ISO number requires more light than shooting at a higher number. Lower numbers result in images with the least visible noise, which is desirable.

The higher the number, the more noise. The amount and degree of noise varies from camera to camera.

Digital single reflex cameras (dSLR), because they have larger sensors, are best for producing noise-free images. However, some consumer digital cameras now have improved sensors that produce acceptable images at higher ISO.

ISO settings
AUTO ISO - digital camera automatically sets the ISO speed according the the brightness of the scene, increasing or decreasing the sensitivity. User has no control over which ISO number is used.

ISO 50 - 80 - for taking photos in bright light; excellent for close-ups, landscape, and portraits. Produces fine detail and image quality.

ISO 100 - for extra sensitivity with little, if any, reduced image quality.

ISO 200 - cloudy and overcast days. Acceptable image quality, with some visible noise.

ISO 400 and above - suitable for indoor photography whether or not a flash is used. Useful for "stop-action" and sports photographs. Most compact digital cameras produce high to very high image noise.

05-26-2007, 03:12 PM	#5
markley02 Tri-State Post Whore Join Date: Apr 2005 Location: Mommy and Daddy’s House Member #390 My Ride: 05 Honda Odessey iTrader: (0)	ISO is the number indicating a digital camera sensors sensitivity to light. The higher the sensitivity, the less light is needed to make an exposure. Digital cameras automatically select the ISO but most have a setting to change it manually. Auto ISO generally works best for bright scenes. Shooting at a lower ISO number requires more light than shooting at a higher number. Lower numbers result in images with the least visible noise, which is desirable. The higher the number, the more noise. The amount and degree of noise varies from camera to camera. Digital single reflex cameras (dSLR), because they have larger sensors, are best for producing noise-free images. However, some consumer digital cameras now have improved sensors that produce acceptable images at higher ISO. ISO settings AUTO ISO - digital camera automatically sets the ISO speed according the the brightness of the scene, increasing or decreasing the sensitivity. User has no control over which ISO number is used. ISO 50 - 80 - for taking photos in bright light; excellent for close-ups, landscape, and portraits. Produces fine detail and image quality. ISO 100 - for extra sensitivity with little, if any, reduced image quality. ISO 200 - cloudy and overcast days. Acceptable image quality, with some visible noise. ISO 400 and above - suitable for indoor photography whether or not a flash is used. Useful for "stop-action" and sports photographs. Most compact digital cameras produce high to very high image noise. __________________ Pwned Dumb ass for not changing my password. I lied about everything. All of it. I owned some great cars because my ex wife dedicated her life to me. I treated her like total sh, because my dk was more important in a back door than she was! She divorced me, and I deserved it! I am into drugs and Motorcycles, guns and especially my bff Brandon To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. and girls that look just like my mother Pronouns: they, them. hyper-sexual narcissist. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.