Lensrentals.com possible collaboration

So, @darix and I were chatting yesterday when he sort of casually mentions that it might be interesting to see if we could get a company like lensrentals.com to possibly help the community with image samples to help with raw processing and camera+lens support. Which is an awesome idea!

If you’re not familiar with them, they are a company that rents cameras and lenses (it’s in the name!). They’ve got a huge selection of gear available including most brand-new equipment as it gets released and they often tinker and toy with the gear including doing write-ups, reviews, and posting their test results on the lensrentals blog. Their founder, Roger Cicala, has posted many informative posts over the years (there was a neat one recently about what a camera looked like coming back from Burning Man.

After chatting with @darix a bit I went ahead and reached out to them to see if there might be some interest. We didn’t want to say anything without first seeing if it might even be feasible to possibly do something. I heard back from the founder, Roger, and was interested! He was going to see if they might be able to assign some resources to gathering some files for us to use and wanted to know what would be the priority list of files that would do the most good.

Which brings me to this post. If we had access to a large library of hardware, what would be the most effective things we could ask of the librarian to help broaden/improve our support?

  • shooting test charts?
  • generating data to feed into dcamprof?
  • testing specific body+lens combinations?
  • shooting specific settings?

I am deferring to all of the experts here. In particular if folks like @houz, @heckflosse, @Morgan_Hardwood, @Carmelo_DrRaw, @hanatos and others could please chime in and possibly bring in folks from other projects that we don’t have here yet (is bronger here?), that would be awesome!

This is an awesome opportunity for us. Not just the possible ability to get some great data to improve projects with, but also a little more exposure for the community and Free Software to more photographers. I would really like to come back to Roger with some good, pointed requests that (hopefully) won’t be too intrusive to their normal operations. Please chime in!

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feeding data to lensfun profile!!

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@ilias_giarimis , ping

Tremendous!

  • CC24 (Passport) test target shots (though I’d be reluctant to trust that they would take the required care when shooting them, but awesome if they did)
  • Completely overexposed and underexposed shots (for measuring white/black points)
  • Other shot types here Adding Support for New Raw Formats - RawPedia
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What would be the required care?

Explained here:
http://rawpedia.rawtherapee.com/How_to_create_DCP_color_profiles#Shooting_the_color_target

I found that sunny days work as well as partly-cloudy ones, but finding a place far away from walls, trees and other reflective objects is important.

This is an awesome idea… I was trying to figure out something after the darktable/Nikon request for help thread. I was thinking of going local, but this’d be much better!

from LebedevRI on #darktable:

one raw file per every iso level per every camera mode (that is, for canon - RAW, mRAW, sRAW; nikon - per every bitness per every compression mode)

i suppose fully overexposed will do just fine

iso level == EVERY iso level, including all sub-iso’s in 1/2 and 1/3 increments

for blackpoint it should be with body cap on and the shortest shutter possible

like 1/4000 or 1/8000

This gets a series of over + under for all ISO. I’m assuming that @Morgan_Hardwood, @heckflosse, and @ilias_giarimis would know if this is appropriate for RT as well?

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To keep this topic relatively clean, I’ve moved the discussion around raw black/white + wb to a new topic. If a reasonable consensus is reached in that thread please consider posting back here for reference so I can include it in consideration of what to ask for!

12 posts were split to a new topic: Raw black/white points and wb (re: lensrentals collab)