Instruction manual

Instruction Manual Roundshot D3 - version 4.05 – May 2013 - © by Seitz Phototechnik AG / Switzerland www.roundshot.ch page 65
4.5 … select the image format (continued)
We can also illustrate this graphically:
f = 80
62‘832 px
The larger the focal length, the longer the resulting panorama. At a vertical
resolution of 7,500 pixels the panorama becomes flatter and flatter when increasing
the focal length.
At 360° and TDI 20x, the resulting resolution, capture time and file sizes in function
of the focal length are:
This means that for example a 360° panorama taken with a 50mm medium format
lens has a resolution of 295 million pixels, takes 2 seconds at image capture (at full
exposure speed) and has a resulting file size of 568 MB in dng, 1.7 GB in tiff and 169
MB in jpg (uncompressed).
Focal
length
Image
length
(pixels) at
360°
Image
height
(pixels)
Resolution
(mio. pixels)
Capture
time
File size
raw, MB
File size
tiff, MB
File size
jpg, MB
28 21'991 7'500 165 1.1 318 954.3 94.4
35 27'489 7'500 206 1.4 398 1'192.9 118.0
38 29'845 7'500 224 1.5 432 1'295.2 128.1
45 35'343 7'500 265 1.8 511 1'533.7 151.7
50 39'270 7'500 295 2.0 568 1'704.2 168.5
55 43'197 7'500 324 2.2 625 1'874.6 185.4
60 47'124 7'500 353 2.4 682 2'045.0 202.2
70 54'978 7'500 412 2.7 795 2'385.8 235.9
80 62'832 7'500 471 3.1 909 2'726.7 269.6
100 78'540 7'500 589 3.9 1'136 3'408.3 337.1
120 94'248 7'500 707 4.7 1'363 4'090.0 404.5
150 117'810 7'500 884 5.9 1'704 5'112.5 505.6
180 141'372 7'500 1'060 7.1 2'045 6'135.0 606.7
210 164'934 7'500 1'237 8.2 2'386 7'157.5 707.8