IPTC data gone after mogrify from tiff16 to jpeg

[Juergen Weber]

Hi,

I mogrifyed a tiff to jpeg, but in the jpeg there is no more ipct data. Is
this a known problem? Also exif seems to be gone.
I tried

D:\NikonScan\Y004>D:\ImageMagick-6.5.9-Q16\mogrify.exe -path . -resize
50% -format jpg Y004-34.tif

Greetings,
Juergen