Using the 4.5 DNG converter with E420 ORF files is resulting in a doubling of file size. A typical ORF is about 9.3 Mb after conversion the DNG is between 18 and 20 Mb depending on whether compression or encapsulation of the raw file are turned on. Is this right ? I thought typically the DNG was slightly smaller than the original raw file.
I have tried both ways, also with and without compression and with and without a JPEG. Still get a file of 18 - 20 Mb. Tried 4.5 with an E1 file - both the ORF and the DNG are about the same. I am beginning to wonder if the E420 ORF is compressed as it is only about 1Mb bigger than the E1 file yet nearly twice as many pixels.