[ptx] Getting EXIF data from coolpix 950 jpgs using hugin

[Kevin Hanser]

Quoting Pablo d'Angelo <pablo.dangelo at web.de>:

> Kevin Hanser schrieb:
>> Hello,
>>
>> I have just recently discovered and started using the following 
>> tools to create
>> panoramas:  autopano-sift, hugin, panotools (PTStitcher), and enblend.
>>
>> I have an old Nikon Coolpix 950 camera, and I have been unable to 
>> automagically
>> read the lens settings using the "load EXIF" feature of hugin.  When 
>> I click on
>> an image in hugin and pick "load EXIF", it then brings up a box 
>> asking me for
>> the focal length.  I've been putting this in manually for now and it works
>> good, but I'm curious as to why it isn't able to get the info from the EXIF
>> info in the jpgs?
>
> Hugin also needs information about the pixel size, because without it,
> the focal length is meaningless.
>
> Some camera do not save both in the EXIF data. Can you email me a
> example image privately?
>
> ciao
>  Pablo
>

I think what I actually meant was the "crop factor".  I'm not entirely 
sure how
to determine this... I've been basing it on the F-stop and that seems to work
ok, but I'm not sure if that's correct or not.  I will send you an image
shortly...

thx!