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Phantom Academy Brazil

Calculators

Estimate the frame rate, recording time, exposure without motion blur and lens for your test with Phantom cameras, with the formula used for each result.

Results are estimates to plan the test. Confirm the configuration with the team before recording.

Frame rate and recording time

Choose the model and the resolution to see the maximum fps and estimate how long the memory records.

Maximum at this resolution: 76,000 fps.

Bits per pixel stored in memory in the chosen recording mode.

Model memory: 512 GB. Replace it with the value of your configuration if it is different.

Result

Estimated recording time

4.39 s
Maximum fps at this resolution
76,000 fps
Frames in memory
333,333

512 × 10⁹ bytes ÷ (1280 × 800 × 12 ÷ 8 × 76,000 fps) = 4.39 s

Formula

Recording time (s) = memory (bytes) ÷ (width × height × bits per pixel ÷ 8 × fps)

1 GB = 10⁹ bytes. The estimate takes the whole memory as a single recording, without partitions, and the maximum fps from the frame rate table of the model at the chosen resolution.

Maximum exposure without motion blur

Find the longest exposure at which a moving object still looks sharp in the image.

How many pixels the object may move during the exposure; 1 px keeps it sharp.

Width of the recorded image, in pixels.

Result

Maximum exposure

Fill in the fields to see the result.

Formula

Maximum exposure (s) = (tolerated blur × field of view in m) ÷ (object speed × horizontal resolution)

Each pixel covers the field of view divided by the horizontal resolution; during the exposure, the object cannot move more than the tolerated blur. The field of view in mm is converted to m.

Lens focal length

Find the focal length that frames the desired field of view at a working distance.

Width of the active sensor area, in the model datasheet. At reduced resolution, use the width of the area in use.

From the lens to the object.

Result

Focal length

Fill in the fields to see the result.

Formula

Focal length (mm) = sensor width (mm) × working distance (mm) ÷ field of view width (mm)

Thin-lens approximation, valid when the working distance is much larger than the focal length. The distance in m is converted to mm.

Want to confirm the setup for your test?

Tell us what you plan to film, the resolution and the recording time you need, and the DVPRO team will confirm the camera, memory and lens, or bring a Phantom for a demo.

Contact usRequest a demo