My Autopano Pro forum

bpmhutch · 2008-08-14 17:22:14

Hi

For my D200 which has a sensor size of 23.6x15.8 and a diagonal of 28.4 against 35mm which is 36x24 and a diagonal of 43.27. I get a sensor scaling of 43.27/28.4 = 1.523. Autopano has 1.525. Does it matter or have I made a wrong assumption?

Peter

GURL · 2008-08-14 17:41:31

bpmhutch wrote:
Does it matter or have I made a wrong assumption?

In most cases, the lens focal length is not well known. Having a 1% precision for the focal length in EXIF data is very uncommon (and this value should be corrected using the distance setting resulting from focusing the lens, data which, as a rule, is unavailable...) Because the sensor size and the focal length are used together to compute the lens FOV, the answer is: no, it don't matter...

bpmhutch · 2008-08-14 17:47:18

Thanks GURL, I guessed it didn't.

Is it possible to edit the lens database as the Sigma 10-20 shows as a fisheye lens when it is standard?

Thanks for your help.

Peter

GURL · 2008-08-14 19:56:58

bpmhutch wrote:
Thanks GURL, I guessed it didn't.

Is it possible to edit the lens database as the Sigma 10-20 shows as a fisheye lens when it is standard?

10 20 72 4.0 5.7;Nikon;Sigma 10-20mm F4-5.6 EX DC HSM;0

Where tha las "0" is the main point....

bpmhutch · 2008-08-15 09:55:58

GURL,

Excellent, thanks for your help.

Peter

My Autopano Pro forum

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#1 2008-08-14 17:22:14

How is Camera Sensor Scaling Calculated?

#2 2008-08-14 17:41:31

Re: How is Camera Sensor Scaling Calculated?

bpmhutch wrote:

#3 2008-08-14 17:47:18

Re: How is Camera Sensor Scaling Calculated?

#4 2008-08-14 19:56:58

Re: How is Camera Sensor Scaling Calculated?

bpmhutch wrote:

#5 2008-08-15 09:55:58

Re: How is Camera Sensor Scaling Calculated?

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