Should I convert NEF to DNG before reading tags?

Not for inspection. Read the original NEF first so you see what the camera wrote.

Where do I get the Mac apps?

Only from the Mac App Store via the badge on each product page.

.nef

NEF is Nikon’s RAW format. Studios need reliable access to capture settings before conversion or long-term DNG migration.

アプリは Mac App Store でのみ入手できます。

Mac-native NEF inspection confirms white balance, lens identifiers, and descriptive tags without forcing an early render step.

Exporting selected fields supports QC reports across multi-camera Nikon shoots.

Typically EXIF plus Nikon MakerNotes. Exact tags vary by camera body and firmware.

Nikon NEF Metadata Viewer for Mac

アプリは Mac App Store でのみ入手できます。