Lens Master Calibration

Walks through various options of the Lens Master Calibration script while calibrating a somewhat distorted lens (Canon 24-70mm L at 24mm), especially the results of the different workflow selections.

2017-02-15. 13:57 long.

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Fisheye Calibration with Straight Lines

Shows how to calibrate a fisheye lens from live shots that contain a number of straight-line features. While the technique is generally useful, even for non-fisheye lenses, this particular tutorial shows the additional steps required for "full-circle" fisheye lenses, where the image is vignetted and does not extend to the edge of the rectangular image plane.

2017-02-15. 20:31 long.

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Random-Dot Calibration

Shows how to do lens calibration using a novel random-dot method that generates a very dense data set for accurate calibration, including a full 360 degree scan that guarantees an accurate field of view. This technique is intended for reference calibrations to examine equipment and techniques carefully, not for calibrating shoots out in the field.

2017-02-15. 30:39 long.

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Lens Centering from Vignetting

Shows how to determine the optical center by intentionally causing vignetting. This can be done easily and accurately in the field using a nesting collection of filter step-down rings. This technique is especially useful when the lens has little distortion.

2017-02-15. 6:38 long.

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One-Pass Lens Distortion Workflow with After Effects Export

Shows a shot with lens distortion being tracked and solved in SynthEyes, then the one-pass lens workflow being used and the scene exported to After Effects. The one-pass workflow produces shots with no lens distortion (ie it has been removed) for delivery to the client. Includes adding a small flag in a 3-D layer to the shot. Shot credit: Arnie Itzkowitz, Aerial Exposures.

2016-01-15. 9:04 long.

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Two-pass Lens Distortion Workflow with After Effects Export

Shows the two-pass lens distortion workflow, which allows you to composite 3-D effects over the original footage with distortion. Here, a shot is tracked and 3-D solved, then a planar tracker added before proceeding with the lens workflow and export. Shows the undistorted and redistorted comps within After Effects. Shot credit: Arnie Itzkowitz, Aerial Exposures.

2016-01-16. 14:28 long.

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Lens Grid Auto-Calibration

Introduction to the lens grid auto-calibration system in SynthEyes, which analyzes footage of a lens grid pattern to produce accurate lens preset information.

2011-12-07. 8:20 long.

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2011.1 Lens Auto-Calibration Grid

Download the 36x27 inch lens grid and print it at most copy shops such as FedEx Office (Kinkos). Use this for 2011.1 lens grid auto-calibration.

2011-11-23.

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Using a Lens Preset

Shows how to use SynthEyes's lens calibration system to calibrate a lens, and apply that calibration to a shot. Shows the before and after of an autotrack of the scene.

2011-12-07. 5:23 long.

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Lens centering and Distortion

Advanced tutorial looking behind the scenes at lens centering and distortion.

2009-07-17. 14:55 long.◆◆◆

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Lens Distortion White Paper

Lens distortion white paper: the actual mathematics of SynthEyes's lens distortion algorithms

2009-07-17. ◆◆◆

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Lens Distortion and Anamorphic Padding White Paper

This "white paper" shows some of the workflow details involved with lens distortion and anamorphic plate handling, where you may need to repeatedly modify initial settings.

2010-04-15.

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Lens Grid for Zoom-based Center Finding

Download the older 50x27 inch lens grid for zoom-based centering determination, and print it at most copy shops such as FedEx Office (Kinkos). Not for use with the 2011.1 lens grid auto-calibration.

2009-01-02.

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AE/SE One-Pass Distortion Workflow (OLD)

Tutorial shows the manual setup of a SynthEyes Undistort node in AfterEffects, to match the distortion and scale computed by a solve followed by using the 1-pass option on the Lens Workflow button (SynthEyes Summary panel). With this setup, you can use AfterEffects to undistort your footage, rather than the SynthEyes image preprocessor.

2012-01-05. 4:30 long.

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AE/SE Two-Pass Distortion Workflow (OLD)

Shows the two-pass workflow, where a lens distortion calculated in SynthEyes is used to configure both SynthEyes Undistort and SynthEyes Redistort effects in AfterEffects. With these nodes and this workflow, you can use AfterEffects (instead of SynthEyes) to convert your distorted footage to clean footage for tracking and 3D work, generate CGI effects that match the clean footage, then use the Redistort node to composite the CGI effects back to the *original* footage, so that you can deliver footage with higher quality,

2012-01-05. 9:12 long.

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AE/SE Advanced Distortion Effect (OLD)

Shows the use of SynthEyes's "Advanced Distortion" effect (pixel bender) in AfterEffects. This effect is able to reproduce the complex distortion types, including off-centering and high-order (fisheye) distortion computed by SynthEyes's lens-grid-based calibration tool.

2012-01-05. 12:05 long.

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AE Undistortion by 3D Export (OLD)

Quick review to complement the other AE/SE pixel-bender tutorials. SynthEyes Undistort nodes are automatically generated as part of an export of the 3D scene from SynthEyes to AfterEffects. This tutorial shows that in action and what the result is.

2012-01-05. 3:04 long.

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Workflow for delivering undistorted images

Shows lens distortion workflow to produce undistorted images.

2009-07-16. 5:16 long.

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Workflow for delivering distorted images

Shows lens distortion workflow based on re-distorting and compositing with the original image.

2009-07-16. 5:49 long.

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SynthEyes easily is the best camera match mover and object tracker out there.

Matthew Merkovich

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