DNG converter and USB 3.0

I replaced a 6 year old Sandisk USB 2.0 compact flash card reader with a new Kingston USB 3.0 reader. Was hoping to get faster transfer rates using the Adobe DNG converter to xfer and rename directly from the compact flash card to hard disk.
Didn't happen. The conversion/xfer times are identical. But if I just copy files from the compact flash card readers to hard disk using Windows Explorer drag-and-drop, the USB 3.0 unit is about twice as fast.
Using a random batch of 40 raw files, it takes the DNG Converter 46 seconds to complete the job using either card reader. Using Windows Explorer to just copy, the USB 3.0 unit does it in 14 seconds while the USB 2.0 unit does it in 28 seconds. So USB 3.0 is twice as fast.
I didn't expect the DNG Converter to be twice as fast. Part of its job is conversion and part is I/O. I would guess 60% to 70% for conversion, leaving 30% to 40% for I/O. So I thought a 50% reduction of the I/O time would be reasonable.
What am I missing in this logic?

Thanks for the reply, Noel.
But strange, I never thought of using ACR to do the DNG conversion, so I tried it. Updated ACR to the curent 6.5 version first. My timing results were the same as using the DNG converter.
Again, a random batch of 40 raw files read from a compact flash card on a USB 3.0 card reader. A total of about 388mb. The DNG converter does the batch in 47 seconds, and ACR does it in 48 seconds. Identical times given the degree of error in my punching a stop watch.
If I copy the raw files to hard disk first and then use either ACR or the DNG converter to convert (HDD to HDD) I get the same 47-48 seconds.
So I'm curious why my ACR times are the same as DNG converter while you say ACR is twice as fast on your system. For what it's worth, my system is Windows 7, 8GB memory, on an intel I5 quad core processor.
The DNG files created by ACR are all about 50 to 55kb larger than the DNG files created by the DNG converter. But I noticed looking at the metadata in Bridge than the DNG files created by ACR have Camera Raw data in the EXIF, while the same files created by the DNG converter do not. I imagine that explains the few extra bytes. But loading the two files into Photoshop and doing a "difference" blend mode proves they are identical.
In any case, I've learned that USB 3.0 gives no advantage over USB 2.0 in this application.

Similar Messages

I bought a canon EOS Rebel T5i. It came with photoshop elements 11. PS won't open my C2 raw files and says my camera isn't supported by the software I have downloaded 7.4 dng converter and I still can't open the files. What do I need to do?

I bought a canon EOS Rebel T5i. It came with photoshop elements 11. PS won't open my C2 raw files and says my camera isn't supported by the software I have downloaded 7.4 dng converter and I still can't open the files. What do I need to do?

You need camera raw 8.4 for your camera, if it’s Digital Rebel T5 EOS 1200D EOS Kiss X70. It is not compatible with PSE11; so it’s a bit odd if that software was bundled with the camera except that it will work with jpegs. I suggest you download and install the free Adobe DNG converter to convert your CR2 files to the Adobe universal Raw format and the DNG files will editable in PSE11(keep your originals as backups and for use in the camera manufactures software)
Mac download (.dmg file) click here DNG Converter 8.4
You can convert a whole folder of raw images in one click. See this quick video tutorial:
You Tube click here for DNG Converter tutorial

CS4 will not open NEF files. I installed DNG converter and it did not help.

CS4 will not open NEF files. I installed DNG converter and it did not help. Also, I tried to just "update" photoshop and it did not work. It is a new camera (Nikon 1).

Yes, you need CS6. DNG Converter is just a standalone tool to convert RAW to DNG files which then may be possible to open in older versions of Adobe tools.
Mylenium

Lightroom, dng converter and D750! Help!

I have recently purchased a d750 and i then realised i couldn't use raw in lightroom I have read many articles and tried my best to fix this issue and I'm at my wits end!
I use lightroom 5 and have a macbook pro, i recently downloaded the dng converter 8.7 and when i try to import an image is won't let me select it at all to convert i don't know what I'm doing wrong but i need this fixed ASAP as i have photo shoots coming up!

After installing the DNG Converter you can run/open it and use it to convert a FOLDER of raw (NEF) images to DNGs and can import those DNGs into an older LR.
There are usually one or two things that cause issues for people who are new to the DNG Converter and/or have a new Nikon camera:
1) The DNG Converter works on a FOLDER not an individually-specified image, so when you are telling it where the folder it, you should single-click on the folder to select it, not double-click to open the folder. Every other piece of software, including ACR, will allow selecting a folder by opening it but the DNGC won’t, you have to just single-click to highlight the folder name.
2) If you have touched (transferred, viewed) your new Nikon camera images with any older Nikon software (Nikon Transfer, View NX), like came with your previous camera, then the images are corrupted by using that obsolete software so Adobe says they are an invalid format. Try copying the NEFs with your OS tools, like Finder or Explorer, and then see if they were in the DNG Converter. If it is important to uncorrupt the few images you’ve taken, then you can use a utility from here:
http://owl.phy.queensu.ca/~phil/exiftool/fix_corrupted_nef.html

I don't understand DNG Converter and legacy versions of Camera Raw

I would like some help understanding what happens when you use DNG converter and open the resulting file in an old version of Camera Raw or Lightroom.
I think I understand that with Camera Raw or Lightroom use two camera profiles for every supported camera. And that DNG also uses camera specific profiles.
But I don't understand what happens when you open a DNG Converter produced file (from a camera not supported in previous versions of Camera Raw or Lightroom) in an old version of Camera Raw or Lightroom. Is the camera specific profile being used to extrapolate colour information?

You are damned right.
I bought a Nikon D700, then Lightroom, then a book on Ligthroom, then a printer Canon Pro9500.
The problems I have, just to achieve a good print are insane.
Today, after reading that it's necessary to install a camera profile, I downloaded these profiles.
But which one fits my D700? D2X mode 1, D2x mode2 or mode3?
It's so frustrating.
I spent a fortune on it but I'm not able to get decent prints.

Downloading DNG converter and it's not working

I've downloaded, reinstalled, and tried several different versions of DNG converter to download my 2nd shooters Nikon D7100 RAW .NEF files, but it's not finding any images once I have it installed. I've downloaded version 7.4 for Windows, which contains the D7100 update...and I've tried installing the newer version 8.6 as well. Nothing seems to be working. What am I doing wrong?

If you are new to the DNG converter, it's possible you are getting caught by the prompt where the converter is asking you to locate your raw files. It's only asking for the folder. Don't open the folder containing your raw images or you will get the message that there are no images to convert.

New adobe DNG converter and CS4 quality problems - EOS 7D

Hi,
A friend of mine uses Adobe Photoshop CS2.
He plans to buy Canon EOS 7D or EOS 5D Mark II in the future but first we did some tests and conversions.
We found many problems and quality issues.
First Problem is that CS2 doesn't support Canon EOS 7D directly so user has to use DNG Converter to convert the EOS 7D file from .cr2 to a .dng.
When i use and test this, CS2 recognizes and opens .dng file correctly then i optimize sharpness, color etc etc in the photoshop and save the file from the file menu (Save AS) as .jpg file.
Adobe Photoshop CS2 fails to save exif data.
It just saves the camera model nothing else.
On the other hand if i use CS4 it saves all exif data (without dng):
The next problem is quality.
If i use indentical settings in RAW converted between CS2 (dng) and CS4 (cr2) CS2 images look sharper and have more "per pixel sharpness" than CS4 raw images.
Here's a sample (raw file taken from dpreview.com) that i tested it using both raw converters:
So these are two problems that i don't like nor does my friend and i am asking you if you would fix that and why such hudge difference ?
As the CS4 is being the newest the best of all photoshop it should had better picture but in this case the older version has better picture and i don't see any logic in that.
So if user wants to go for better quality he/she will pick CS2 but have a disadvantage - Exif is not saved in the .jpg file.
I also think that if dpreview would have used CS2 instead of CS4 they would get much higher "per pixel sharpness" from Canon EOS 7D as they did now.
Thanks.

Spc.. wrote:
If i use indentical settings in RAW converted between CS2 (dng) and CS4 (cr2) CS2 images look sharper and have more "per pixel sharpness" than CS4 raw images.
You can't use the exact same settings since the settings in ACR 3.x (Photoshop CS2) don't match up to ACR 5.x (Photoshop CS4).
Seriously, there was a major change in ACR 4 and then 5 that make comparing ACR 3.x and 5.x pretty pointless...
Fact is if you aren't getting optimal results from Camera Raw 5.x then you don't know how to use it...simple as that.
ACR 3.x had a very crude image sharpening process compared to either ACR 4.1 and above of any 5.x version.
Seriously, Photoshop CS2 and Camera Raw 3.x is way old tech...if you can't get better IQ from 5.x you are doing something wrong.

File size difference between DNG Converter and Lightroom Beta 4

Hi,
I want to go the all-DNG route and am trying several things ATM. I want my files to be as small as possible, thus I disable previews and RAW embedding and enable compression in DNG Converter. In Lightroom, there are no options at all. What I do get, are pretty amazing file size differences:
Original .NEF as it came from my D70s: ~5MB
.DNG created by DNG Converter: ~1MB
.DNG created by Lightroom: ~4MB
The very small file size in DNG Converter is the one that bother's me most. I get these small files from time to time. I checked both the DNG and the NEF in Photoshop, and they seem to be identical. So my question is: What triggers these small file sizes? Do I loose anything? Or is the Lightroom DNG converter not as advanced as the stand alone version?
Maybe this helps: I get the ridicolous small files for very dull subjects that tell the computer scientist in me that it should be easily compressable by common compression algorithms.
Thanks for any pointers,
Markus

Thanks for the hint! It did make me revisit those files and now I see the reason for the small file sizes: The Apple Finder does note update the file size view once a file was added to a folder. Here's what I did:
Opened a folder full of .NEFs in detail view in Finder.
Converted them using DNG Converter
Looked at the sizes of the files as they were shown in the Finder window allready open.
Unfortunately, those file sizes are not correct. If I open a new Finder window of the same folder, file sizes are correctly reported as between 3.5 and 5 MB.

Trouble with Adobe dng converter and 5d mark iii

I have recently downloaded the dng converter 6.7 to convert my cr2 files from my 5d mark iii, however it keeps on telling me i have no files to convert, is there anything i can do about this? i am using elements 10

Test with the new 7.1 DNG converter:
Windows: http://www.adobe.com/support/downloads/detail.jsp?ftpID=5389
Mac: http://www.adobe.com/support/downloads/detail.jsp?ftpID=5388
See if that changes anything. If not, we'll want to take a look at one of your files to test.

How often does Adobe update DNG converter and/or Camera Raw to read files from new model cameras?

My PC operates with Windows 7. I now have PSE 11 with Camera Raw version 7.1.0.354 which will not open my new Panasonic LX7 cameras RW2 raw files. I have tried to use DNG version 5.7.0.213 (the latest) to convert my RW2 files to DNG files but it won't recognize the RW2 files as even existing. Can I expect Adobe to update either of these programs any time soon? If not, any ideas? Thanks
(This is my first question on any forum, so hope I have used the correct protocol.)

I believe the current Release Candidate (ACR 7.2 RC) supports your camera. You can download it from the Adobe Labs site.
http://labs.adobe./downloads/cameraraw7-2.html
This is a Release Candidate, which means it is not completely checked out but Adobe would like users to use and report problems. It will be released before the end of October as a production release.
I know this works with Photoshop CS6, but don't know about Photoshop Elements 11.

Adobe DNG Converter and Camera Raw 4.5 update available

See: http://www.adobe.com/support/downloads/detail.jsp?ftpID=3940 for both.
See: http://www.adobe.com/support/downloads/detail.jsp?ftpID=3942 for Camera Raw 4.5 update only.
Neil

>> Yesterday's ACR+Photoshop+Bridge works fine here
I am talking about very specific conditions outlined here that spanned two intel boxes on trustworthy 10.5x installs...
Buko, "Bug: Multiple Files Open ACR Crashes Photoshop..." #1, 10 Jun 2008 2:57 pm

Camera Raw and DNG Converter 4.4 Now Available

Details here: http://blogs.adobe.com/lightroomjournal/2008/03/lightroom_14_and_camera_raw_44.html
Regards,
Tom

Hmmm... I got the DNG Converter and ACR from the page I listed.
If you go to the DNG page at http://www.adobe.com/products/dng/ and click on Downloads (in the light gray box on the upper right) for Mac or Windows (I'll use the Windows example here because I'm on a PC right now, but it also worked from my Mac) you will go to http://www.adobe.com/support/downloads/detail.jsp?ftpID=3894 and then you have to click on Proceed to download and it should say filename DNG_Camera)Raw_4_4.zip and be 5.4 meg in size (If you follow the Macintosh link the filename is DNG_Camera_Raw_4_4.dmg and is 12.5MB).
However, if you go to the Camera Raw page at http://www.adobe.com/products/photoshop/cameraraw.html and click on the download links under the main gray box you will only get the Camera Raw file (filename is Camera_Raw_4_4.zip at 3.3MB or Camera_Raw_4_4.DMG at 7.8MB).
Both download places list the Product name as Adobe Camera Raw and DNG Converter. But the filenames are different and indicate which one you are downloading.
JOhn

Installing DNG converter in CS4 and Lightroom 2.o

I am using Photoshop CS4 And Lightroom 2 on a windows 63bit platform. I have upgraded my camera to a Nikon 5200 and need to upgrade the camera raw file. I have downloaded camera raw 7.3 and it went through an install process for Light rpoom. However, Lightroom and photoshop still does not open the raw files from the new camera. What am I missing?

CS4 and LR 2.x are not compatible with ACR 7.3. You will need to Upgrade to CS6 or LR 4 or both to use your camera's raw files.
Or, you can download Adobe's Free DNG Converter and convert your NEF's to DNG files that are backwards compatible with all versions of Lightroom and PS back to CS2 (if memory serves).

I downloaded DNG Converter 8.7 and as a standalone app it doesn't see RAW files from my 7D Mark 2.

I don't want to upgrade from Elements 11 yet.
When I got my 60D I had to install the DNG converter and after a few uses, Elements 11 started to see them too.
On a 64 bit Win7 PC.

When you use Select the images to convert, you don't want to actually open the folder, just click on the name of the folder in Content Pane of windows explore, not in the Navigation Pane.

What's the Difference in Conversions done with ACR vs. DNG Converter?

As an experiment, on my PC workstation I just converted a set of 40 Canon CR2 files with both the free DNG Converter 6.5 and Camera Raw 6.5 (both 32 bit and 64 bit). With Camera Raw, I dragged the files to Photoshop, then used the [Save Files] button and chose .dng format. I chose "Medium" thumbnails in both cases.
The DNG Converter and Camera Raw 32 bit took almost twice as long as Camera Raw 64 bit (56 seconds vs. 33 seconds).
The .dng files produced by Camera Raw ended up larger than those by the DNG Converter, about 9% larger on average.
A file comparison shows that the differences are all near the start of the file, and that the latter 80% of the data is identical in all three cases.
The DNG converter files are more different from the Camera Raw files than the two different sets of Camera Raw files are from eachother.
This leads me to ask these questions:
1. Why are the 32 bit DNG converter app and Camera Raw 32 bit plug-in so much slower than the Camera Raw 64 bit plug-in? I have an 8 core machine, and in general don't see a 2:1 difference between equivalent 32 and 64 bit code. It appeared by watching Task Manager that all of them were using more than one thread to do the work.
2. Are there any plans to release a (much faster) 64 bit DNG Converter for Windows x64 users?
3. Is there a practical / usability difference between the .dng files generated by Camera Raw vs. those generated by the DNG converter?
-Noel

ssprengel wrote:
You can see how many CPU cores are being used by watching the performance tab with core performance separated, as long as nothing else much is going on.
Not really. Particular threads do not normally maintain a long-term affinity for particular cores, so the usage gets spread around as Windows does its multitasking stuff and what you normally see is just activity across the board, as seen in the screen grab below (that was DNG Converter running). Only inasmuch as the overall percentage is higher than 1/n (where n is the number of cores) can we infer a certain amount of multithreading.
And yes to both of you - every setting that I could find is perfectly consistent across the board, including compression. And as I mentioned before, the embedded previews are coming out exactly identical, both in size and color.
-Noel

DNG converter and USB 3.0

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