Panoramic photos with analog camers

[Ioan Petrescu]

I am passionate about black and white analog photography with a Rolleicord camera. The development procedure is the classic one with solutions. I then scan the negative obtained and obtain a digital image. My question is how can I finally obtain panoramic images with the Hugin software.

[petrescu...@yahoo.com]

[Jan Steinman]

"how can I finally obtain panoramic images with the Hugin software."

Same as you would with digital images. I've done many of them from analog film.

The biggest challenge is the same: lens distortion. My best film panos have come from shift lenses, shifted full one way, then the other. That way, there's zero lens distortion at the seam.

But you don't have that option with the Rolleicord. So you'll just have to spend a lot of time mapping control points.

[Ioan Petrescu]

Thank you very much for your kindness in answering me.

Ioan Petrescu

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[Ioan Petrescu]

Thank you very much for your kindness in answering me.

Ioan Petrescu

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[Paul Womack]

As long as the distortion falls within Hugin's distortion model, Hugin should be able to correct it nicely.

I find (on a digital, where it costs nothing but time) shooting a 360 linear panorama with LOTS of overlap is a very good way of getting a lens' distortion calibrated into Hugin.

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[J. Schneider*]

I suppose, with scanned images you should also correct for translation (only x and y, I guess), because you can never be sure you have cropped all images with the centre (optical axis) exactly in the digital image's centre. In doubt, you even have to optimize this for each image independently, e.g. treat them as different lenses.
Best regards
Joachim

Am 21.04.2025 um 18:28 schrieb Jan Steinman:

"how can I finally obtain panoramic images with the Hugin software."

Same as you would with digital images. I've done many of them from analog film.

The biggest challenge is the same: lens distortion. My best film panos have come from shift lenses, shifted full one way, then the other. That way, there's zero lens distortion at the seam.

But you don't have that option with the Rolleicord. So you'll just have to spend a lot of time mapping control points.

On Monday, 21 April 2025 at 08:04:03 UTC-7 petrescu...@yahoo.com wrote:

I am passionate about black and white analog photography with a Rolleicord camera. The development procedure is the classic one with solutions. I then scan the negative obtained and obtain a digital image. My question is how can I finally obtain panoramic images with the Hugin software.

[petrescu...@yahoo.com]

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[Carl von Einem]

Hi!

When optimizing scanned images you should also correct for the "shear"
(g, t) parameters, see the panotools wiki

-
<https://wiki.panotools.org/Hugin_Optimizer_tab#The_Custom_parameters_below>
"Optimising the g or t shear parameters of the lens correction model for
scanned images is only possible by editing the script file."

-
<https://wiki.panotools.org/Lens_correction_model#Image_shear_g_.26_t_parameters>
Image shear g & t parameters
"Image shear is not a lens distortion but nevertheless is part of the
panotools lens correction model. It corrects for a distortion induced by
scanners or scanning cameras that causes a rectangular image being
sheared to the form of a parallelogram (one side of the images is
shifted parallel to the opposite side)"

You have to manually edit Hugin`s script file which is a bit complicated
to work out but the list should be able to help with that.

Here is a panorama that I shot with my 6x7 camera:
https://worldwidepanorama.org/go/n1933?v=255.24l24.358l47.283

Cheers,
Carl

Am 21.04.25 um 16:46 schrieb 'Ioan Petrescu' via hugin and other free
panoramic software:

[Carl von Einem]

Just out of curiosity:

Which Rolleicord model do you use?
https://en.wikipedia.org/wiki/Rolleicord

And I guess you don't do complete spherical panoramas but the simpler
partial panoramas, right? That way you wouldn't need to set up a NPP
adapter
https://wiki.panotools.org/NPP_adapters

Did you already stumble over this article?
https://wiki.panotools.org/High_resolution_film_transparency_digitalization_using_macro_lens_and_stitching

Am 21.04.25 um 16:46 schrieb 'Ioan Petrescu' via hugin and other free
panoramic software:

[Claudio Rocha]

@ Zarl can you share more information on the t and g  parameters and how to optimize them?  

[Ioan Petrescu]

I managed to get a panoramic image with HUGIN software with black/white photos taken with a Rolleicord camera made in 1938!!! Thank you very much for the advice.

Ioan Petrescu

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