>>3966628>Air is a medium not an optical elementYou never been outside on a hot day anon? Where do you think those wiggly lines come from?
Why is there a table of refractive indices for different clear gasses?
Is gas "designed for a camera mount" no, but neither is glass, glass was "designed" from lightning or lava heating up sand.
>>3966630>Why do peoples subjective and biased opinions not match up with objective measurements?Really anon?
>Sigma has poor MCSays who?
>ObjectivityHigh resolution and contrast on mtf charts. Just repeat that to yourself a few times, if you don't understand mtf charts, just say so, I can help you out.
