PTGUI with lense correction?

[Stephan Weber]

Hi, my Tamron and Sony Zooms have real significant distortion, especially in the extreme wide-angle or tele region. E.g. my 17-70 at 70mm has strong pinching in the center.

It can disturb if you photograph architecture, and some distortion will be also present in the final panorama.

It would be good to be able to load or generate a re-distortion template, like PTGUI has for vignetting.

Bye Stephan   

[Erik Krause]

Am 22.02.2021 um 19:20 schrieb Stephan Weber:

> It would be good to be able to load or generate a re-distortion template,
> like PTGUI has for vignetting.

This is already possible. Since PTGui templates apply the lens
correction you can save a prepared template once you the lens correction
in a project is ok: On Project Settings tab disable anything and leave
only "Lens settings" under "Template behavior" checked. Then save as
template.

You would need to apply this template after any other templates to have
the parameters take effect.

--
Erik Krause
http://www.erik-krause.de

[Stephan Weber]

Hi Erik, good to hear this, but for me the current way to do lense correction looks very confusing. It would be much easier to have a little button and to load/save a lense correction like I can do for vignetting. Actually vignetting is somewhat easier (it changes only a little from lense to lense and acc. to aperture), my Tamron 17-70 changes the distortion significantly on focus length, so I need to deal with several distortion settings. So it would be really good to make a dedicated interface, best at the potion where I also change the projection methods. 

Bye Stephan

[John Houghton]

On Friday, March 5, 2021 at 7:26:03 AM UTC weberc...@gmail.com wrote:

It would be much easier to have a little button and to load/save a lense correction like I can do for vignetting.

Stephan, That feature is already available on the Lens Settings tab via the Lens Database button.

John 

[PTGui Support]

Hi Stephan,

As John said there's the Lens Database which does what you need.

However, if you shoot carefully (no parallax) it's hardly ever necessary
to use pre-calibrated lens parameters. Just ensure there are enough
control points and the optimizer will do the rest.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[Stephan Weber]

Thanks! In most cases it works fine, but in some cases even the linear / straigt projection gives me a rounded overall pano. If I have this again, I could upload an example.