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How to Reverse FOV Slider?

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Dafar

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21

Friday, September 28th 2018, 8:25pm

I LOVE YOU!!!!

hahaah!!


It's PERFECT now!!!


Thank you sooooooo much!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

San7

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Friday, September 28th 2018, 9:35pm

*smile*

not quite sure, it seems to be the angle diagonally across the matrix.
I would still do a button for the crop factor
type FF, crop 1.6, crop 1.3 and so on.

In fact, the code is much smaller:

Source code

 
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<!-- fov_to_focallength(Crop factor); For a full frame - 1 -->	
<events name="showfocal" keep="true" onviewchanged="fov_to_focallength(1);" />	
	
<layer name="pos_info2" keep="true" alpha="1" align="bottom" x="300" y="350" width="100"  url="%SWFPATH%/plugins/textfield.swf" enabled="false" 
       padding="8" background="true" backgroundcolor="0x2D3E50" backgroundalpha="0.7" css="font-family:Courier; color:#FFFFFF; font-size:12px;"  />
			
<action name="fov_to_focallength" >
	Math.tan(field,calc(view.fov / 114.6));
	calc(focal,21.622 / (field * %1));
	copy(print_fov, view.fov);
	roundval(focal, 1);
	roundval(print_fov, 1);
	calc(layer[pos_info2].html,'F = ' + focal + ' mm[br] FOV=' + print_fov + '°');
</action>
https://novosibpano.ru/Plugins/


This post has been edited 1 times, last edit by "San7" (Sep 29th 2018, 5:22am)

Dafar

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Friday, September 28th 2018, 10:23pm

I'm not using the crop factor setting that you created.
I'm using it manually because I need other important changes, not only to show a different focal length number.

But what I tried now is that the crop factor is inverted.
When I put 1.5 on the crop factor, the focal length get smaller, not bigger.
And, of course, it doesn't translate to view.fov. It's only a number changing.


For me, the way you made it is perfectly fine!
Thank you so much!!!

San7

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24

Saturday, September 29th 2018, 5:18am

As I understand it, the croep factor shows correctly
San7 has attached the following image:
  • ff.jpg
https://novosibpano.ru/Plugins/


Dafar

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Saturday, September 29th 2018, 2:15pm

Actually no.

The crop factor will multiply the focal length value.

If you have 100mm in Full Frame, the 1.5x crop factor will give you 150mm.

San7

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26

Saturday, September 29th 2018, 2:51pm

On a full frame of 50 mm you will get the same angle as on the crope of 33.4 mm
On the crope of 50 mm - the viewing angle will be less than 50 mm on the full frame.
https://novosibpano.ru/Plugins/


Dafar

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Saturday, September 29th 2018, 3:18pm

Ahhh!!

Now I understood what you're doing.

You want only to show what focal length would be in the cropped sensor.

I thought you wanted to create the possibility to change the view to the cropped sensor, on the same focal length.



So... You're right. We both are! hahaha
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