It's one of those freshnel lenses you glue to your rear window to act as a fisheye lens. It's actually surprisingly good. I can see the ground about 1.5m (5ft) behind me. I wish it would reach my rear bumper as that's what I'd like to see but this helps!
Also, I took the picture with a poor man's smartphone - my apologies.

20 Comments
Semi_Hemi_Demigod@lemmy.world · 33 pts · 1d
This is better than the time I called myself on FaceTime and stuck one phone on the back of my truck so I could hook up a trailer by myself
Iconoclast@feddit.uk · 7 pts · 1d
That's hilarious
Marafon@sh.itjust.works · 4 pts · 1d
How did you have two phones if you were by yourself?
Semi_Hemi_Demigod@lemmy.world · 6 pts · 1d
I was within range of my WiFi so I had an iPad in the cab
CluckN@lemmy.world · 4 pts · 1d
Kevin Gates has a riveting tale on why one person would require two cellular devices.
toothpaste_sandwich@thebrainbin.org · 2 pts · 1d
I wasn't riveted :(
BCsven@lemmy.ca · 2 pts · 1d
Work phone and home phone is possible, as well as drawer of old phones
fakeman_pretendname@feddit.uk · 1 pts · 1d
Workphone and not-work phone?
Main-life phone and secret-life phone?
A_norny_mousse@piefed.zip · 2 pts · 1d
Amazing. I'd have gotten out a million times and worn out the handbrake in the process.
varyingExpertise@feddit.org · 2 pts · 1d
I do that all the time with my work and my private phone for exactly that 🤷
rouxdoo@lemmy.world · 1 pts · 1d
I did the same thing to properly align a door sensor and the magnet inside my pantry.
87Six@lemmy.zip · 11 pts · 2d
THAT'S SICK
does it last??? Being stick-on doesnt give me a good feeling
Iconoclast@feddit.uk · 11 pts · 1d
It's a bit rubbery film and sticks with just water sprayed to the glass and then squeezed out. It can be removed and re-applied. My main concern is freezing in the winter and how it'll react if I mix in some anti-freeze.
A_norny_mousse@piefed.zip · 3 pts · 1d
From the inside I presume?
Can't you attach it with a thin stripe of sticky tape along its edges, or sth similar?
ToiletFlushShowerScream@piefed.world · 8 pts · 2d
Love the simple elegance of it. It just works, no subscription, nothing to break, nothing to fix. And all the money you saved can be saved or spent on what is important in life.
A_norny_mousse@piefed.zip · 6 pts · 1d
* fresnel
I remember those from ages ago used for very similar or maybe even exactly the same purpose. One of those analog solutions that went the way of the dodo ever since everybody and everything has a tiny portable computer...
altphoto@lemmy.today · 1 pts · 1d
Further nerd-ology: https://en.wikipedia.org/wiki/Fresnel_equations
Godnroc@lemmy.world · 5 pts · 1d
It makes looking out wider, bit that means looking in would be more focused. Careful it doesn't light your car on fire in the sunshine.
Iconoclast@feddit.uk · 5 pts · 1d
I actually thought of the same thing and wondered if that's the reason I dont see these more often.
Trex202@lemmy.world · 1 pts · 1d
I saw one of these on the back of an RV