Does an extension tube affect lens profile? about gyroflow

[AdrianEddy]

Yes, the extension tube definitely affects the lens profile. You should calibrate your own profile with the exact same setup

[xphoniex]

Is there any guide how to do that written somewhere?

Also, any comments re jello effect? I'm not familiar with the physics, should I be expecting as good a fix for macro as the wide shots?

[AdrianEddy]

https://docs.gyroflow.xyz/app/getting-started/lens-calibration

Also, any comments re jello effect? I'm not familiar with the physics, should I be expecting as good a fix for macro as the wide shots?

In ideal conditions yes, but hard to tell without seeing the exact sample. Definitely first step is the accurate lens profile and rolling shutter value. What camera are you using?

[xphoniex]

https://docs.gyroflow.xyz/app/getting-started/lens-calibration

Hm.. it'd be very hard, if not impossible, to get the whole chessboard pattern in one shot as the macro FOV is small, and so is the focus plane. What's your suggestion?

In ideal conditions yes, but hard to tell without seeing the exact sample. Definitely first step is the accurate lens profile and rolling shutter value. What camera are you using?

I didn't know how to cut a small portion of video while retaining gyro data. What settings should I use? (in dr or ffmpeg)

By rolling shutter value, you mean the ms value? I tried a few variations which didn't make much of a difference.

Using ZV-E10 with kit lens.

[AdrianEddy]

Hm.. it'd be very hard, if not impossible, to get the whole chessboard pattern in one shot as the macro FOV is small, and so is the focus plane. What's your suggestion?

Just scale down this pattern and print it, then film the small one on a paper. That should work. Make it so the entire pattern is visible in the lens, but the physical size doesn't matter, so it can be really small

I didn't know how to cut a small portion of video while retaining gyro data. What settings should I use? (in dr or ffmpeg)

it's not possible, you need to use the entire file

By rolling shutter value, you mean the ms value?

Yes, but with ZV-E10 it's already correct from the video metadata, don't change it