Sorry, the links I intended to post didn't work out the way I wanted.Can not understand anything.
This is the ruler I have, everything is clear from it
Panzer's ruler is marked in centimetres, so after reading the number he has to use a right angled triangle calculator to get the degrees.How to look at a ruler to understand degrees?
My measurements coincide with the Panzer's, in the photo there is an angle of 119 Mini and I previously tested them on many using different tables, the result is positive.However your's seems to be marked in degrees x2, so I'm not convinced that yours is the best either?
Yes, it is the result that matters, you just need to understand the ruler that you are using, and yours is the easiest to read, no need for any extra mathsMy measurements coincide with the Panzer's, in the photo there is an angle of 119 Mini and I previously tested them on many using different tables, the result is positive.
How to look at a ruler to understand degrees?
Hmm, never noticed that. Just took a quick glance at the thumbnail image and assumed it was a metric ruler....it was marked in degrees like yours...
@gse was kind enough to send me the PDF file of the “degree ruler” I would have liked to use it because there would be no math involved.Just took a quick glance at the thumbnail image and assumed it was a metric ruler.
Yes, but most lenses are fairly similar, people don't like the ones with significantly more compression near the edges than normal because they result in very curved vertical walls.I hate to add a complication. Are any of the lens "amorphic", meaning compress more on the edges of the image. I need to back across a side walk with limited viability and I want backup camera with as wide an angle as possible.
I want backup camera with as wide an angle as possible.
Dashcams are not designed for use as reversing cameras
Nigel & DT MI are correct.
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