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How to Choose Your Virtual Film Speed

561 views · Published 15 July 2010 · 2:29 · Indexed 26 October 2026

Channel: Howcast · 2010 · Howto & Style

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Watch more Photography Tips & Techniques videos: http://www.howcast.com/videos/3398-How-to-Choose-Your-Virtual-Film-Speed

Got a digital camera? Learn how to select film speed for a variety of shots, from sports to parties.

⏭️ Step 1: Analyze scene
Analyze the scene, noting the amount of light present and the subject matter you will be shooting. You will be choosing an ISO based on these shooting conditions.

Tip
The term 'ISO' refers to how sensitive the image sensor is to the amount of light present.

⏭️ Step 2: Medium-lit interiors
For medium-lit interiors, select an ISO between 200 and 400.

⏭️ Step 3: Brightly lit interiors
For brightly lit interiors, use an ISO between 100 and 200.

⏭️ Step 4: Outside on bright days
When outside on bright days, choose an ISO between 50 and 100.

⏭️ Step 5: Exterior shots on cloudy days
For exterior shots on cloudy days, select an ISO between 100 and 200.

Tip
The lower the film speed, the better the image quality and the less noise, or digital grain, will be visible within your images. Choose the lowest possible ISO you can use without sacrificing clarity.

⏭️ Step 6: Fast action
Fast action warrants a fast film speed of between 400 and 800.

⏭️ Step 7: Still-lifes & portraits
For still-lifes and portraits, a low ISO of between 50 and 100 is recommended.

⏭️ Step 8: Low lighting w/ tripod
If the lighting is low and you have a tripod, try an ISO of between 400 and 600.

Tip
In all situations, a tripod helps reduce camera shake and improves the clarity of photos. Use a tripod whenever possible.

Step 9: Select film speed
Turn your dials to select the appropriate film speed based on your shooting conditions.

⏭️ Step 10: Click away
Click away—then move on to the next great photo opportunity!

Did You Know?
The first consumer digital camera was the Apple Quicktake 100, which debuted in Tokyo in 1994. The Quicktake had a resolution of only 640×480 pixels, which is almost half the resolution of most cell phone cameras today.

How to Choose Your Virtual Film Speed
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How to Choose Your Virtual Film Speed

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