Quote:
Originally Posted by earleygallery
As I understand it the only function is that the ROM contacts can tell the dedicated flash which lens is being used (for zoom functions on the flash). Everything else will work as it should.
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You are correct, James.
With an R8/R9, the ROM contacts only help with the flash (provided you are using a compatible flash gun). If you don't use flash, ROMs are not necessary, and even if you do use flash, they are an assistance, not a requirement.
ROM'd lenses do talk to the DMR, and it has been suggested that some in-camera adjustments are done if you use a ROM version over a non-ROM.
I have both ROM'd and non--ROM'd lenses for my DMR and don't worry about them at all.