Luminous Landscape Forum

Equipment & Techniques => Medium Format / Film / Digital Backs – and Large Sensor Photography => Topic started by: Doug Peterson on December 21, 2015, 10:24:51 am

Title: 32HR Lens Corrections in Capture One 9.0.1
Post by: Doug Peterson on December 21, 2015, 10:24:51 am
As a small token of holiday appreciation for our tech camera users throughout the world, DT worked with Phase One to get the 32HR fully profiled for Capture One 9.0.1.

[if you're on v8 and looking to upgrade to v9, DT it is free when you attend our Capture One Masters Program training (https://digitaltransitions.com/events-training/)]
Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: JoeKitchen on December 21, 2015, 12:06:17 pm
Does this take into considerations movements and tilts/swings? 

Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: Doug Peterson on December 21, 2015, 01:04:06 pm
Does this take into considerations movements and tilts/swings?

The Lens Corrections for the 32HR (and other tech camera lenses) include corrections for images captured with movements (rise/fall/shift). In the Lens Correction tab select "Movements" and enter the relative location of the digital back. For instance if you shifted the back 15mm to the right in order to "see" to the left then enter (positive) 15mm. Another example: if you shifted the back 20mm to the left to "see" to the right then enter -20mm.

Tilt is not accounted for, but the amount of tilt I would expect commonly used for this length of lens (1 or 2 degrees max) will have a pretty minor impact on lens geometry.
Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: Paul2660 on December 21, 2015, 01:34:30 pm
The Lens Corrections for the 32HR (and other tech camera lenses) include corrections for images captured with movements (rise/fall/shift). In the Lens Correction tab select "Movements" and enter the relative location of the digital back. For instance if you shifted the back 15mm to the right in order to "see" to the left then enter (positive) 15mm. Another example: if you shifted the back 20mm to the left to "see" to the right then enter -20mm.

Tilt is not accounted for, but the amount of tilt I would expect commonly used for this length of lens (1 or 2 degrees max) will have a pretty minor impact on lens geometry.

Does the correction for movements take into account the mustache distortion which gets worse as you shift?  If it does then Kudos to Phase One.

Paul C
Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: Doug Peterson on December 21, 2015, 03:24:25 pm
Does the correction for movements take into account the mustache distortion which gets worse as you shift?  If it does then Kudos to Phase One.

Yes. The complex distortion of the full image circle is mapped.

Give it a try!
Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: Paul2660 on December 21, 2015, 05:52:03 pm
This is good news for sure. And thanks for the excellent description on the usage of movements in the lens corrections. Something I have never really understood i.e. When to use a negative entry.

Paul C
Title: Re: 32HR Lens Corrections in Capture One 9.0.1
Post by: Ken R on December 26, 2015, 07:57:52 am
As a small token of holiday appreciation for our tech camera users throughout the world, DT worked with Phase One to get the 32HR fully profiled for Capture One 9.0.1.

[if you're on v8 and looking to upgrade to v9, DT it is free when you attend our Capture One Masters Program training (https://digitaltransitions.com/events-training/)]

This is awesome. I will do some tests with my 40mm HR-W once the weather improves to see if I can incorporate this into my workflow. Very very happy to se this.