Re: [darktable-dev] Lens correction with FF lenses used on APS-C

In the database (in liblensfun-data package, file slr-canon.xml for Canon), you will find the various bodies / lenses. For each lens, there is a comment like: This allows you to know how the lens was calibrated. J-L Le sam. 23 févr. 2019 à 19:31, David Vincent-Jones a écrit : > On my system t

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

On my system the camera and correct lens is found by default which is what I want! David On 2019-02-23 9:12 a.m., Sturm Flut wrote: Hi, Am 23.02.19 um 16:34 schrieb Florian W: Thanks for your answers guys. Simon, I'm curious to know why to you it's not the best idea ? (oversimplifying

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

Hi, Am 23.02.19 um 16:34 schrieb Florian W: > Thanks for your answers guys. > > Simon, I'm curious to know why to you it's not the best idea ? (oversimplifying it a bit) Full-frame lenses are designed to deliver their full sharpness across the whole full-frame image circle. If I put a full-fram

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

* Florian W [02-23-19 10:37]: > Thanks for your answers guys. > > Simon, I'm curious to know why to you it's not the best idea ? > > > Le sam. 23 févr. 2019 16:19, Sturm Flut a écrit : > > > Hi, > > > > it does, as long as lensfun can find the lens in its database. I've been > > using full-fr

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

Thanks for your answers guys. Simon, I'm curious to know why to you it's not the best idea ? Le sam. 23 févr. 2019 16:19, Sturm Flut a écrit : > Hi, > > it does, as long as lensfun can find the lens in its database. I've been > using full-frame-only lenses on both my Nikon D750 (full-frame) an

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

Hi, it does, as long as lensfun can find the lens in its database. I've been using full-frame-only lenses on both my Nikon D750 (full-frame) and D7100 (APS-C) for years. (It's not the best idea, though, so I'm about to replace the D7100 with a second full-frame body). cheers, Simon Am 23.02.1

Re: [darktable-dev] Lens correction with FF lenses used on APS-C

I believe it does. Changing body type (full-frame instead of aps-c) changes geometry. Body type description is nothing more than just a file in /usr/share/lensfun/version_1 with cropfactor parameter being the only meaningful information used for geometry calculaton. Timur. On Sat, 2019-02-23 at 1

[darktable-dev] Lens correction with FF lenses used on APS-C

Hi, I happen to use on my Canon 750D (APC-C) 2 lenses designed for full frame (Canon EF 50mm f/1.8 STM and Canon EF 28mm f/2.8 IS USM) I wondered if the lens correction module takes into account that the camera is full frame or APS-C to apply the proper correction ? Can someone tell me ? Thanks _