Tecnai on-line help manual -- Options - UT Southwestern

<strong>Tecnai</strong> on-line help Options 58Options Software version 2header2-byte integer sub 1322-byte integer zfac 1344-byte floating point min2 1364-byte floating point max2 140 extra 28 bytes data4-byte floating point min3 1444-byte floating point max3 1484-byte floating point min4 1524-byte floating point max4 1562-byte integer idtype 1602-byte integer lens 1622-byte integer nd1 164 divide by 100 to get float value2-byte integer nd2 1662-byte integer vd1 1682-byte integer vd2 1704-byte floating point tiltangles[9] 172 used to rotate model to match rotated image4-byte floating point zorg 208 origin of image; used to auto translate model4-byte floating point xorg 212 to match a new image that has been translated4-byte floating point yorg 2164-byte integer nlabl 220 number of text labels with useful data (0-10)char data[10][80] 224 10 text labels with 80 characters3.26.2 The extended headerTotal number of extended headers (one for each image) is 1024.Please note: Some values have rather odd numbering. That is because prior usage determined thatcertain values were fixed too low and the addition of more types dictated the necessity for numbersbelow, while 0 is generally avoided. The 0 is typically an undefined number.Name Byte position Commenta tilt 0 Alpha tilt in degreesb tilt 4 Beta tilt in degreesx stage 8 Stage position in umy stage 12z stage 16x shift 20 Image shift position in umy shift 24defocus 28 Defocus in micrometersexposure time 32mean intensity 36tilt axis angle 40pixel size 44 Image pixel size in nanometersmagnification 48Microscope type 52 <strong>Tecnai</strong> 10 = -2, <strong>Tecnai</strong> 12 = -1,<strong>Tecnai</strong> 20 = 1, <strong>Tecnai</strong> 30 = 2, forTitan add 10 to HT equivalentGun type 56 W = -2, Lab6 = -1, FEG = 1Lens type 60 HC = -3, BioTWIN = -2, TWIN = -1, STWIN = 1, UTWIN = 2,XTWIN = 3