What does the focal length in brackets mean on my photo?

When you see a focal length in parentheses, like 50mm (75mm), that value comes from the FocalLengthIn35mmFormat field in your photo's EXIF when it differs from the native focal length.

Glass does not calculate this from crop. It is what your camera embedded as the full-frame equivalent focal length.

• If your file includes FocalLengthIn35mmFormat and it differs from the native focal length, Glass shows it in parentheses.
• If it does not, Glass shows only the native focal length (like 55mm).

See Image quality.