B&W: Words/No Words

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Leotax F, 50mm f/3.5 Simlar, Kodak Double-X
I thought it was a shockwave? You mean in the background? Pardon my ignorance
It's not a shockwave (it would have a round-ish shape pointing towards the fighter jet and covering one edge to another). It's the exhaust heat distorting the air behind the jet.
Any light (and subject) going through a heat distortion will be bent like the heat haze on a hot summer day above the ground.