How-to: My RAW Workflow for the Lumix G1 on the Mac

Update: Aperture 3 now supports the Lumix LX3, G1 and GH1 raw formats. However, there are some problems with DNG support for these cameras. The trade-offs in this post are still valid, but before you decide on a DNG workflow, take a look at the work-arounds for getting certain DNGs working in Aperture 3.

Mac OS X and Aperture don't yet support the RW2 raw format produced by recent Panasonic cameras like the DMC-G1 or LX3 or the Olympus E-P1. That leaves Mac users with a couple of options:

  • Shoot JPEG. The quality is pretty good, and the G1's automatic settings get it right much of the time.
  • Shoot RAW and convert with SilkyPix or RAW Developer, software packages that support RAW from these cameras.  SilkyPix, while it comes with Panasonic cameras, has an unusual interface (export settings get saved in the "cloakroom"). RAW Developer seems great, but is by no means free. Neither program is designed to manage a photo library.
  • Buy the latest version of Adobe Lightroom, which handles these latest raw formats just fine
  • Shoot RAW and convert to Adobe's DNG format -- which Aperture and iPhoto can read mostly
For now, I am committed to Aperture.  And I prefer to shoot RAW. So if, like me, you prefer to use Aperture to manage your photos, this workflow can help.
As I've written before (in Adobe DNG 1.3 spec now does RAW for the Panasonic Lumix G1), the state of OS X is that for now, DNGs work fine from adapted manual lenses. While the DNG converters have been updated to support shots taken with the Panasonic and Olympus lenses, OS X doesn't understand the new stuff those lenses add.  In practice, this means you can only work with raw shots made with legacy lenses.  One day Aperture and OS X will be updated to understand the new stuff -- either in RW2 format or in DNG. Until that sunny day, here's what I do:
  1. With the kit lens (or any other micro 4/3 lens -- if I had others), I shoot JPEG
  2. With manual legacy lenses (I have a couple of Voigtlanders), I shoot RAW and convert to DNG
  3. Import these DNG and JPEG images into Aperture
Automating Conversion and Import
This may sound complicated, but at download time, it's really not, because I've automated the process.  Here's how you can, too. For that last import step, I use Image Capture to pull the photos off of the camera and call an Automator workflow that does the conversion.  
I've put the code for the the workflow below. It requires two helper applications:
  • Adobe DNG converter turns your RW2 files into DNGs. The originals are still there, if you want them.
  • exiftool, which compensates for a date bug. Aperture and DNG converter can't agree on the date and time your photos were taken. Exiftool removes date info from the DNGs so that Aperture can do the right thing.
These programs get called by the import workflow, which looks like this in Automator:
Here's the code for the shell script action that does the conversion:
Simply paste that code into a perl shell script workflow box, just like in the screenshot above. For the import action, feel free to choose import into Aperture (like I do) or iPhoto. Either one will work.
Last, save the workflow as an Image Capture plugin, and you'll be all set. Image Capture will let you pick where to download the images, and your new workflow will appear in the list of automatic tasks. (Restart Image Capture if you don't see it right away.)
Or Download the Whole Workflow
Update: Don't want to mess around with creating a workflow to do this? Why not just download mine. Save it in your home directory to ~/Library/Workflows/Applications/Image Capture, where Image Capture will find it. Restart Image Capture if necessary.
So there it is. You'll be shooting full quality when you can, or JPEG when you must -- and not complicating your workflow.

 

Click here to download:
RW2_to_DNG_to_Aperture.zip (235 KB)

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Update for Panasonic Lumix G1: Update Contents for DMC-G1K

  • Fixed the instability of operation when the lens is retracted into its barrel, using Olympus Imaging Corporation's M.ZUIKO DIGITAL ED 14-42mm f3.5-5.6 lens.
  • Fixed the instability of operation, using Olympus Imaging Corporation's M.ZUIKO DIGITAL 17mm f2.8 lens.
  • Improved the battery identification to assure the safety standards Panasonic uses for our customer's safety.
  • This firmware upgrade makes the camera work only with Panasonic batteries.

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    Post: Adobe DNG 1.3 spec now does RAW for the Panasonic Lumix G1

    Adobe has issued some new software today, version 2.4 of Lightroom 2, version 5.4 of Camera RAW, and version 1.3 of the DNG specification and SDK. The complete press release can be found at the Imaging Insider.

    Of great interest, they have added support to a number of new and upcoming digital cameras. All but three of them have interchangeable lenses. You can check the Adobe downloads page for more details.

    The new version of Adobe's DNG Converter (version 5.4) now supports the lens correction data in the RW2 files created by Panasonic's latest cameras -- including the Lumix G1 and LX3. DNGs for files shot with the kit lenses now save the original sensor mosaic data. (The previous DNG version turned the sensor data into a linear DNG, which only Adobe could use.)

    Still no support for the new DNG files in Aperture or iPhoto, though. Maybe in the next version of Aperture (please, Apple)?

    So here's the state of working with RW2 images with Apple software:

    With today's update, Adobe Lightroom, etc, will work just fine with all RW2 files.

    Can Apple be far behind?

    Update: DPreview's editorial blog has more details of the new DNG specification and what it means. Unless otherwise specified: DNG gains lens correction

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    Post: Loving the Panasonic Lumix G1


     
    A fellow tracked me down on Flickr the other day, asking about Panasonic's Lumix G1. He was looking to buy one, but was worried about spending that much money on a camera that he had only touched in the store.

    Well I love the Lumix G1. It's the first digital SLR-ish camera I've owned, and I find it super. Here's the regular stuff that I like about it:

    • Relatively small (just a little smaller than the smallest SLR). To put that in perspective, that's still much bigger than a point-and-shoot. With the kit zoom lens, it's about the size of the Panasonic FZ50 I had previously. 
    • It's fast. It shoots when you press the button. 
    • Low light performance. The G1 performs much better than small-sensor cameras like the FZ-50. ISO 1600 is perfectly fine. ISO 3200 works for black-and-white. Here's an interior shot with the kit lens at 1600: 


     
    But any digital SLR will be fast like this. Some, the Olympus E-420, say, are just about as small. (Plus the E-420 is considerably cheaper right now, from what I hear.) And entry-level Canons or Nikons have larger sensors than the G1, so may well outperform it in low light conditions.
     
    Still, two things make the G1 better for the way I shoot.
     
    1. Swing-out LCD: I find myself shooting from waist-height more often than not, looking down at the LCD viewfinder. The low angle gives an unusual look to shots, and it's not threatening to subjects. I can joke with folks without having the camera hide my smile. It's disarming.
     
    While it seems like a simple thing, I find it makes a huge difference for taking photos of people. For shooting flowers, it means less bending or lying down. In full sunlight, the eyepiece is there if I need it.
     
    2. Use of legacy lenses: There are few micro 4/3 lenses on the market right now. Optically, folks seem to be happy with them, but they are slower -- slower than f4. I like to shoot people with available light, and f4 is just too slow for interior shots. Legacy lenses are one way around this problem.
     
    The insides of the G1 (or of any Micro 4/3 camera) are different than regular SLRs. Because of the G1's digital viewfinder, there's no mirror or prism inside. So the distance from lens to the sensor can be smaller than any camera yet. This means that, with the proper adaptor, just about any old lens can be fitted to the G1.
     
    Now, these lenses will most likely be manual focus (all but a few regular 4/3 lenses are manual), but the G1's viewfinder/LCD combo makes this workable, even for action shots like these kids soccer shots:
     

     
    Got Minolta Rokkors in the closet? You can use 'em. There's a list of the legacy to m4/3 lens adaptors now on the market.
     
    While I've spent most of my time with the G1 shooting legacy lenses, here are a few samples of what the kit zoom can do.
     
    My biggest peeve with the G1? Its raw image format is still not understood by Apple Aperture -- in some cases not even if you translate the pic to DNG format. But that's one for another post.
     
    In the meantime, got your own G1 photos? Or thinking of buying one? Let me know in the comments.

     

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