Instead we only see blurry UFO images, because all images that aren't blurry turn out to show mundane things.
These are used for both SAR and for target identification purposes you don’t want to blow up another civilian aircraft or a fishing vessel by mistaking it for with a military target.
I don’t know exactly what the US is running but sensors from other countries I’ve seen are capable of reading the tail number of a passenger jet from a substantial distance.
These sensors are also thermally stabilized and corrected for atmospheric disturbances as much as possible, and usually capable of visual spectrum + NIR and NUV to provide even higher fidelity.
If these sightings around carrier battle groups and fleets are indeed so common we should have pretty decent evidence of what these things are.
These systems are powerful and precise enough to be used for fine grained targeting, in fact in many cases the guns of the ship and the CIWS systems will be guided with electro optical sensors rather than radar.
Radar picks things up, the ElOp system then interrogates the target, ranges it with with a laser which provides much higher precision than radar range finding and if need be guns go brrrttt…
Why is it that nobody has ever obtained an in-focus picture of a mysterious flying craft?
I mean, I would understand if a significant proportion were out-of-focus, or a tiny dot due to distance. But... never? Ever ever? Not one? Not in the history of the human race? With billions of phone cameras in pockets? Hundreds of millions of "proper" cameras out there, and at least a few million high-end DSLRs with decent glass attached?
Makes it seem like UFOs are the invisible dragon in my garage, if you know what I mean...
So I would be extremely suspicious of sharp clear properly exposed pictures of UFOs.
I can take clear pictures of airplanes flying ~400m above me without any issues.
(I don't think you are lying, but it's nice to see an example. Also I strongly like "pics or it didn't happen".)
All shot on a Canon 1100D with a 75-300mm zoom lens, using manual focus with the "full auto" mode for controlling aperture, shutter time etc. Usually I am leaning out of a window or standing in my garden to capture these shots.
As you can see, none of these images are particularly "good": the subjects in the first three images are underexposed due to their dark colouring against a light background, some are slightly out of focus, some show evidence of dirt or other marks on the camera sensor, yet you can still make out various details on all of them. One would imagine that if there were an equivalent photo of an actual "alien" UFO, it would be on the front page of newspapers across the world.
(One trick that I use for family photos is to use a delay of 1 second, to avoid the movement when I press the shutter. (It's not useful when there are kids. One second later they are in another room.))
But I do agree with your sentiment.