>> Na tarkim as apie tai:
>>
>> Format --- Focal length --- F-number --- Crop factor --- Equivalent 
>> Focal length --- Equivalent aperture
>> Full Frame ----- 85mm ------ f/1.2 ----- 1 ----- 85mm ----- f/1.2
>> 1"-type ----------32mm ----- f/1.2 -----2.7 -----86.4mm ----- f/3.2

> Pasitikslinam, kas yra boke?

tai, kas nepatenka i fokusa (ir i dof).. bet jei ta pati 
nerysku fona kelis kartus padidint, tai boke "mocnesnis"..

http://web.archive.org/web/20131031052024/http://toothwalker.org/optics/dof.html

http://toothwalker.org/optics/dof/gromit_28f4.jpg
http://toothwalker.org/optics/dof/gromit_100f4.jpg

http://toothwalker.org/optics/dof/gromit_28f4_zoom.jpg
http://toothwalker.org/optics/dof/gromit_100f4_zoom.jpg

bet man atrodo mes apie ta pati, tik gal skirtingais 
issireiskimais/terminais?.. jei taip - tai gal ir uzteks jau?..