The big issue with lens databases is that they need to be very well crafted or you will end up trusting something that is not right although surely better than nothing… I guess.
To do it well we should be registering the grids with variations of focal lengths (zoom lenses of course) and for each of those a series of focal distances and this is VERY time consuming to do well. Assume a full day for a normal set of lenses and you will need a massive (truly massive) grid on a wall so there are some logistics involved too. Furthermore, when you face old anamorphic lenses then all bets are off and you have to scale up the operation in a big way to do some decent tracking, only 3DE can model degree 6 anamorphic distortions with lens breathing and the lot, therefore my tool of choice is 3DE, the rest feel like toys, very capable tools for 90% of the cases though but when things turn ugly… in my experience only 3DE can crack these. But it is obvious that with today’s constraints (time and money) it may be unrealistic to do the full thing so my suggestion is to operate with the new generation of Cooke or Arri lenses (Ultra Primes) and simplify the distortion grids to focal length and only on those shots that you envision problems to do the full set of Focal Length and Focal Distance. A question I have… How much would you be happy to pay a month to have access to a properly constructed lens database (ready to go with any software)? consider this, if the lens is not already in the database you get the distortion done (provided you send the grids properly done) within hours for free and from then on is available to everyone. Would that be something the majority of people would be happy to pay for? I know I would but I am interested. hope it helps jb > On 3 Aug 2016, at 13:17, Rob Wuijster <[email protected]> wrote: > > Haven't used it in a while, but SynthEyes can do some undistorting as well, > when you have no grid while shooting. > Rob > \/-------------\/----------------\/ > On 3-8-2016 11:13, Waylon Winn wrote: >> You could try PTLens. It has been awhile since I used it but it might be >> useful. >> >> http://epaperpress.com/ptlens/ <http://epaperpress.com/ptlens/> >> >> Take care, >> >> Waylon >> >> On Wed, Aug 3, 2016 at 2:08 AM, Adam Seeley <[email protected] >> <mailto:[email protected]>> wrote: >> Hi folks, >> >> Wondered if I could tap into some accumulated knowledge on the list. >> >> Does any of the software out there allow you to undistort plates using ready >> made profiles based on camera/lens combinations? >> >> Have the problem of there not being enough time to shoot grids due to the >> camera being fitted to a helicopter for evening shots. >> >> I know there's various software for DLSR/lens combinations like DxO and even >> Photoshop ,that will read EXIF or manually input information that will do >> the job. >> >> Thanks, >> >> Adam >> >> _____________________ >> Adam Seeley >> Love Vfx Ltd. >> www.LoveVfx.co.uk <http://www.lovevfx.co.uk/> >> www.linkedin.com/in/adamseeleyuk <http://www.linkedin.com/in/adamseeleyuk> >> www.vimeo.com/adamseeley <https://vimeo.com/adamseeley> >> >> >> >> ------ >> Softimage Mailing List. >> To unsubscribe, send a mail to [email protected] >> <mailto:[email protected]> with "unsubscribe" in the >> subject, and reply to confirm. >> >> >> >> ------ >> Softimage Mailing List. >> To unsubscribe, send a mail to [email protected] >> <mailto:[email protected]> with "unsubscribe" in the >> subject, and reply to confirm. > > ------ > Softimage Mailing List. > To unsubscribe, send a mail to [email protected] with > "unsubscribe" in the subject, and reply to confirm.
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