sydney2218
Active Member
- Joined
- Mar 3, 2014
- Messages
- 145
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- Location
- sydney
- Country
- Australia
- Dash Cam
- mobius 1
That covers it nicely , time to move on to the 4K version & experiment with a spare M1 later on , thanks
Well Tony's telephoto image in his last post is really good, if like Tony you also like:Wow TonyM this is just amazing.
I just found this thread by accident, and read all three pages.
What you're doing really is fantastic work.
I'm waitng for Nigel to come in here and telll me what I should think about all this, and how I should, or should not implement this into my personal dash cam set up. lol
-Chuck
then go for it.I like having a telephoto option to capture things that a standard dashcam cannot see.
If the plate never gets close enough for a wide angle camera to read it, then the telephoto, or more resolution are the only ways to read it, but then you are unlikely to have an incident with that vehicle, so it is hard to see the need.Do I really need to be able to read number plates at ~30m distance?
- the motion blur caused by movement across the sensor accelerating as it nears the edge of the wide angle isn't an issue once you can see far enough, after that the motion blur is more to do with the movement of the vehicle and change of viewing direction, which is the same for both cameras, it is magnified on the telephoto but in distance across the number plate is the same amount, and to reduce it requires faster shutter speed.In this particular case, with cars each way travelling at around 50-60mph, I found the sweet spot was at approximately the same point for both cameras. So the screenshots represent the best of both camera's video captures.
If the plate never gets close enough for a wide angle camera to read it, then the telephoto, or more resolution are the only ways to read it, but then you are unlikely to have an incident with that vehicle, so it is hard to see the need.
A telephoto cam may capture a clear shot of the plate number of an oncoming vehicle at a distance right before you get side swiped by a hit and run driver who then takes out your rear view mirror and keeps going. Then you discover that your wide angle camera didn't capture a clear shot of the plate of the car that hit you.
Being in the UK, I imagine that if a hitman takes out my rear view mirror then he will be using a shotgun, and that will destroy both the wide angle and telephoto cameras hiding behind my rear view mirror, so neither dashcam will get a shot at his platea hit and run driver who then takes out your rear view mirror and keeps going. Then you discover that your wide angle camera didn't capture a clear shot of the plate of the car that hit you.
Being in the UK, I imagine that if a hitman takes out my rear view mirror then he will be using a shotgun, and that will destroy both the wide angle and telephoto cameras hiding behind my rear view mirror, so neither dashcam will get a shot at his plate
I think this is a highly unlikely scenario for me to encounter.
I'm sure Nigel knew exactly what was meant.