This plug-in for Adobe Photoshop® (as well as Photoshop Elements® - but not tested - please start Photoshop CS5 in 32bit mode when using the LC) is able to correct the distortion of ALPA lenses from Schneider, Rodenstock and Zeiss easily, quickly and at ultimate quality level. In addition the tool is able to correct shifted images, which is not common in many other tools. It is based on photogrammetric principles and got developed together with the University of Berne. The achievable corrections are potentially on a sub-pixel level. Below you will find for download the manual (English/German) and ressources for the installation on Mac as well as Windows.

For the download of the plugin itself please log in. You will find the plugin for Mac OS X and Windows, the correction profiles and the manual on "Information" subpage once you are logged in.

Targeted customers: In general every (digital) ALPA photographer interested in even higher quality than already produced by the top lenses from Scheider and Rodenstock, in particular architecture and industrial/commercial photographers. It shall help to improve image quality and be a time-saver for photographers.

Supported lenses: At the moment 21 ALPA wide angle and standard lenses from Schneider, Rodenstock and Zeiss from 23 to 72 mm - other lenses on request.

Supported digital backs: See the list below -  others on request. Scans can be supported theoretically too.

Distribution: From the ALPA website, via ALPA dealers and ALPA direct.

Updates: Updates of the plug-in will get announced specifically. The correction/calibration files get updated/enhanced when needed. They are available for download here, via the shortcut www.lc.alpa.ch or via the "Help" function within the tool (Internet connection needed).

Support: By e-mail on a best effort base.

Price: The tool is completely for free but exclusively and discretionary for ALPA photographers! It is not planned to sell it or make it available for users of other brands.

Zeiss on Distortion, see...

"Distortion" by B. Hönlinger and H. H. Nasse, CLN 33

Supported Lenses (to be enhanced)

ALPA

• AAA Apo-Alpar 5.6/35 mm
• Apo-Switar 5.6/36 mm
• AAA Apo-Alpar 5.6/45 mm
• Apo-Helvetar 5.6/48 mm
• AAA Apo-Alpar 5.6/55 mm

Rodenstock

• HR Digaron-S 5.6/23 mm
• HR Digaron-S 4.5/28 mm
• HR Digaron-S 4.0/35 mm
• HR Digaron-W 4.0/40 mm
• HR Digaron-W 4.0/50 mm
• HR Digaron-S 4.0/60 mm
• HR Digaron-W 5.6/70 mm

Schneider

• Apo-Digitar 5.6/24 mm XL
• Apo-Digitar 5.6/35 mm XL
• Super-Angulon 5.6/38 mm XL
• Apo-Digitar 5.6/43 mm XL
• Apo-Digitar 5.6/47 mm XL
• Super-Angulon 5.6/47 mm XL
• Super-Angulon 5.6/58 mm XL
• Apo-Digitar 4.0/60 mm N
• Apo-Digitar 5.6/72 mm L

Zeiss

• Biogon 4.5/38 mm 

Supported digital backs (to be enhanced)

Hasselblad

• CFV-39, H3DII-39, H3DII-39 MS et al
• H3DII-50, H3DII-50 MS

Leaf

• Aptus(-II)/Valeo 22/5
• Aptus(-II) 65/6/6s
• Aptus(-II) 75/7/7s/AFi 7
• Aptus-II 8
• Aptus-II 10 (R)/AFi 10

Phase One, Mamiya

• P20(+)
• P21(+), Mamiya M18
• P25(+), Mamiya M22
• P30(+), Mamiya M31
• P40+
• P45(+)
• P65+

Various

• Sinar eMotion/eVolution 75

Download information