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Is ISO Important

Frank Feliciano

Blog #23 of 33




June 4th, 2013 - 08:57 AM

Is ISO Important

I was recently asked this question and the answer is absolutely. So what is the ISO? I probably should have included this information before the post on Spectacular Sunrises and Sunsets, oh well better late than never.

For the old timers who used to have to get up to turn the knob on the TV to go from ABC to NBC or CBS...because those were their only choices, ISO is the politically correct version of the old film day ratings for ASA. ASA stood for the American Standards Association these folks set the rating standards for the film manufacturers. But Frank other countries made film too. Enter the era of politically correct everything and the group changed from ASA to International Standards Organization, ISO; the same folks, the same ratings, just a different name for the group.

Remember film had a rating for the sensitivity to light; a low number for shooting outdoors in bright sunlight, a high number for shooting either indoors or in low lighting conditions. Consider using these settings:
A low ISO value, such a 100 for bright light scenes, outside in broad daylight
A High ISO value, such as 6400 is for shooting in dark situations, newer commercial grade cameras go much higher than this
Be careful of ISO values of over 1000 because they tend to make the photos “grainy or noisy”, however, the newer professional grade cameras can go much higher without increase in noise.

Remember different ISO settings on your camera can be used for different times of the day:
For dawn/morning use ISO 800-200;
For mid-day sun use ISO 100-200;
For late afternoon to sunset use ISO 400; and for evenings use ISO 400-1600.

Another difference from the old film days is that if you were using an outdoor film in your camera and your next group of pictures was going to be indoors, well you had to waste the rest of the roll and put in a new roll of indoor rated film or the other way around. In the digital age it is much easier and cost effective because all one does is change the ISO setting on the camera to adjust for the lighting conditions.
Again if you start making all these changes to your camera settings so you can take control of your camera and capture more than just lucky snap shots, then you have to remember to read the blog post, “I know I said this would be another Aperture post But’ then scroll down to the fourth and fifth paragraph and follow those instructions.

I hope you are enjoying the posts and if you do please comment on the blogs by scrolling down and posting your remarks. Please don’t beat me up here, I’m very sensitive, beat me up in private.


Post a Comment

Frank Feliciano

4 Years Ago

Tallahassee, FL

Thank you ladies, I will keep them coming, let me know if you have any issues you want me to cover.

Jillian Ryder

4 Years Ago

Fountaindale, New South Wales

That was very timely Frank, thank you. I 'll be reading all your blog posts now so keep 'em coming.

Dorothy Menera

4 Years Ago

Dunnellon, FL

Frank, I for one have really appreciated your blog posts and feel I have learned a lot from them. Thank you very much! Dot