Skip to main content
C
cmatter
Inspiring
January 26, 2017
Question

DNG Converter.. changing size of dng when converting from NEF ??

  • January 26, 2017
  • 1 reply
  • 5071 views

Win XP Pro SP3; ACR 7.1

Trying to use the "Change Preferences" dialogue to reduce the size of my converted DNG's

Shooting with a Nikon D800E.. Working in ACR V 5.7.0.213

When I convert with the "Use Lossy Compression" box unchecked  (i.e. "Don't use Lossy Compression"), the converter works fine

When I try to apply Lossy Compression.. the resulting DNG's won't display in Bridge

What am I missing?

Several of my agency clients require that I upload RAW files to their editor in Asia. The 7360 x 4912 @ 240 D800 native size is too large.. the data costs are killing me.

My older version of ACR can't read the D800 files; and their editor can't read the native D800 NEF's

Thnx in advance

CDM

NYC

This topic has been closed for replies.

1 reply

JP Hess
JP Hess
Inspiring
January 28, 2017

Are you using the latest DNG converter? If not, that would be the first thing to try. Unless your camera has a way for you to reduce the size of the image, there really isn't much you can do if you need to submit raw images. The DNG converter cannot make the image smaller as far as dimensions are concerned.

C
cmatterAuthor
Inspiring
January 28, 2017

Hi.. Thanks for the reply..

What I've finally done is to compress the NEF's using the D800 Menu settings. This results in a size reduction of about 30%... which certainly helps

I'm using DNG converter v 7.1. I'm told that 8.3 is the highest version that will support Win XP Pro, and I'll try that at some point.

As the only reason I really need to do this is to reduce my monthly data use on my Mobile Broadband account to bring the price down. I'm not too concerned about reducing the pixel dimensions of the final DNG, more reducing the size in Mb. I realize that switching to a cable account like Spectrum or Verizon Fios would offer a faster connection speed account with no data cap; but for murky political reasons I can't do that here in NYC.. believe it or not. Verizon isn't available in my neighborhood.. yet as it's wired for Spectrum. Spectrum has a weird policy that they'll only allow 1 account per household.. My roommate has the Spectrum account.. and Spectrum catagorizes each apartment as a "household" (stupid). Neither my roommate nor myself wants to share the account.

Interestingly enough.. looking at the final DNG conversions in Bridge (mde from NEF's compressed in-camera)....they have a pixel size identical to the original D800 NEF's, but the total Mb size is approx 30% less. I can see no noticeable reduction in Image quality.

What I can't understand is why won't the "Use Lossy Compression" Properties option in my 7.1 converter render DNG files that my CS4 Bridge can read ??? Maybe the 8.3 version will ?? But I'm suspecting that the issue might be compatibility between CS4 and my 7.1 converter. If that's the case.. maybe a higher version isn't the answer ??

Adobe is no help.. Do you know if there's any kind of DNG converter user manual around anywhere ??

Regards..

CDM

NYC

JP Hess
JP Hess
Inspiring
January 28, 2017

I'm not aware of any user manual. There are a few "how to" videos, but they are quite basic. Have you tried setting the compatibility level to an earlier version to see if that makes the difference?

Terms & ConditionsAccessibility statement
Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices