converting raw to DNG

Forum|Forum|8 years ago
January 21, 2018
2 replies
7728 views

I use LR 4. I have upgraded my camera to a D7500 which uses a newer version of RAW which LR4 does not read and Adobe don't seem to support the products they have sold in the past which seems a little off to say the least. Furthermore, the options of forums only being LRcc is sad and not expected from a industry leader. however, I have down loaded the Adobe RAW converter but the quality produced is poor 1024 x 643, but still retaining the 20 meg file size. there doe snot appear to be a selective option to chose a higher resolution. please advise a solution. regards alan

convert raw dng

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C

comfortablyreal

Participant

The operating stystem is likely showing the dimensions of the embedded jpeg, not the raw file. If you select large size in the preferences, the jpeg will have the original dimensions. If you select medium, you will get 1024 by something. Selecting NONE gives you dimensions visible to the OS of 240 by something.

Open the file in Photoshop and you will be able to see the real dimensions.

Per Berntsen

Community Expert

The only way to reduce the pixel dimensions when using the DNG converter is to use lossy compression, and choose Limit Size to.

You can limit size to 1024 pixels on the long side, but the file will then be very small, only a few hundred kb.

Where are you seeing the 20 MB file size?

Also, 1024 x 623 is not a standard aspect ratio for files from a digital camera, so I'm not sure what's going on.

It might be helpful if you could provide some more information, and maybe put a sample DNG file on Dropbox that we could download and examine.

aland73773638Author

Participating Frequently

Hi Per, Thanks for the response. This is the screen I get prior to hitting convert. Note there is no condition to compress. I have not knowingly set any preconditions. I have enough trouble including A suffix or prefix for the new file names. The files are visible in Explorer and also with Photo where the pixel references are made.

I certainly don’t want to diminish the pixel count of limit file size as I strive for the best quality from my shots. I also find the programme cumbersome and it does not flow in the process. All in all I am disappointed in Adobe’s lack of support for the older versions of their programmes. I would imagine the time to write the patch is minimal even between the various versions of LR, but is avoided on the expectation of people upgrading. I am sure there are many older adobe users who simply have no need for the latest and greatest, we are happy with the product we bought from the then market leader.

Hope we can get this quality issue sorted.

Per Berntsen

Community Expert

I can see from your screenshot that you aren't using lossy compression, and that pixel count is preserved.

In the Lightroom library, please select one of the DNG files, and report back the listed pixel dimensions.

See screenshot below.

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