Reverse image cameras

If you don't the picture on the plotter is confusing as right is left and left is right on a rear facing docking cam.

I replaced one on the last boat and didn't use a reverse image camera which didn't cause much grief but it is nicer with the correct image
 
jrudge said:
If you don't the picture on the plotter is confusing as right is left and left is right on a rear facing docking cam.

I replaced one on the last boat and didn't use a reverse image camera which didn't cause much grief but it is nicer with the correct image
Click to expand...

If I understand you, you are saying that the image needs to be reversed when you see it.

I'm afraid that I dont agree with that.
I have two rear facing cameras - one on the port and one on the starboard.
If I were to reverse the images, I should probably reverse the displays as well - putting the port camera on the starboard screen etc.
IMO, it is more logical to have the same view in the screen as you would if you look backwards.
Just think of it as the view you would see when you look back and not like a car rear view mirror.
When reversing, my mind (and me) is looking backwards so looking in the displays is the same as looking backwards.
I could have switched min round but I've got used to it and it feels more natural without reversing the image.
 
Hurricane said:
IMO, it is more logical to have the same view in the screen as you would if you look backwards.
Click to expand...
I can see why you think it's logical, but as a matter of fact the MFD are installed in the dashboard, so you are actually aiming forward when you look at them, and your brain "feels" that whether you like it or not.
Otoh, it's undeniable that by flipping the view horizontally you are introducing another type of counter-intuitive distortion.
My view - if you excuse the pun! - has always been that the most logical solution for looking on a dash screen at what happens while mooring stern to is to rotate (not flip!) the image by 180 degrees - which btw can be done with every camera.
I understand it can't be easy to figure why I'm saying so, but just imagine seeing the dock in the lower rather than the upper part of the screen, as if you would be looking at the boat from a drone right above it, and all becomes more logical/intuitive, imho.
 
MapisM said:
I can see why you think it's logical, but as a matter of fact the MFD are installed in the dashboard, so you are actually aiming forward when you look at them, and your brain "feels" that whether you like it or not.
Otoh, it's undeniable that by flipping the view horizontally you are introducing another type of counter-intuitive distortion.
My view - if you excuse the pun! - has always been that the most logical solution for looking on a dash screen at what happens while mooring stern to is to rotate (not flip!) the image by 180 degrees - which btw can be done with every camera.
I understand it can't be easy to figure why I'm saying so, but just imagine seeing the dock in the lower rather than the upper part of the screen, as if you would be looking at the boat from a drone right above it, and all becomes more logical/intuitive, imho.
Click to expand...

I think you are agreeing with me.

But, in my case, it all becomes more apparent when you consider there are two forward facing screens and two rear facing cameras.
If I look at the starboard screen, and turn round during driving backwards, I expect to see the starboard rear quarter on my left.
If that (starboard) screen had been flipped, my brain would have gone into overload!!!

All this kind of stuff is about keeping things simple.
 
Hang on M, we are mixing up two separate things - i.e. single vs. double rear camera(s), and straight vs. flipped image.
If you keep your port camera on port screen and stbd camera on stbd screen, in practice you ARE flipping the view horizontally, i.e. you are doing what jrudge wants to do with a single rear cam.
Which is yet again the same effect that can be achieved with the 180 deg rotation that I suggested - whose side advantage (I forgot to mention it before) is that on top of the static view, also the motion perception is more akin to the reality: as you approach the dock, you can see it appearing from the screen bottom, and getting closer to the boat stern, which reflects what is happening behind you.
 
Gosh how complex this is getting.

Each to their own!

Raymarine sell reverse image cameras for a reason!

You are looking forwards at the screen.

As you look as it the left side of the screen is getting too close to the mooring wall.

You engage left throttle to push away .... but only if it is flipped. If not then you have just made the issue worse and twisted the boat.

I have had a non reversed camera before as I said as the expensive reverse one went wrong. So can it be done. Yes. However my question was where can i buy revers image cameras at fair prices as that is what I would prefer.

All cars have a reverse image on their reversing cameras for that very reason .

Multiple cameras and multiple plotters is not the scenario.

Pete - you can be with Mike - but you are not on the top of a flybridge having no view of the back of the boat and if you were I would think you would change your view. you just have to turn your head ...
 
jrudge said:
All cars have a reverse image on their reversing cameras for that very reason.
Click to expand...
Correct. And of course, you would never want a 180° rotated view on a car camera, with the road upside down...
But in a f/b boat, the camera is pointing downward at least as much as (or even more than) backward.
This is what makes the rotated view logical - aside from being feasible with any camera.
Unfortunately I didn't make a video of such setup when I came across it (in a commercial boat), because it's as immediate to understand that it makes sense when you see it, as it's hard to explain why in written... :rolleyes:
 
I have been looking for the same for a while and haven't found anything - I ideally would like IP cameras to hook up to my FB plotter. If that worked I would aim for one in the engine room and one up front for the anchor.
 
MapisM said:
Hang on M, we are mixing up two separate things - i.e. single vs. double rear camera(s), and straight vs. flipped image.
If you keep your port camera on port screen and stbd camera on stbd screen, in practice you ARE flipping the view horizontally, i.e. you are doing what jrudge wants to do with a single rear cam.
Which is yet again the same effect that can be achieved with the 180 deg rotation that I suggested - whose side advantage (I forgot to mention it before) is that on top of the static view, also the motion perception is more akin to the reality: as you approach the dock, you can see it appearing from the screen bottom, and getting closer to the boat stern, which reflects what is happening behind you.
Click to expand...

You are correct, of course.
But speaking from someone who has tried it, I found it confusing.
 
jrudge said:
Gosh how complex this is getting.

Each to their own!

Raymarine sell reverse image cameras for a reason!

You are looking forwards at the screen.

As you look as it the left side of the screen is getting too close to the mooring wall.

You engage left throttle to push away .... but only if it is flipped. If not then you have just made the issue worse and twisted the boat.

I have had a non reversed camera before as I said as the expensive reverse one went wrong. So can it be done. Yes. However my question was where can i buy revers image cameras at fair prices as that is what I would prefer.

All cars have a reverse image on their reversing cameras for that very reason .

Multiple cameras and multiple plotters is not the scenario.

Pete - you can be with Mike - but you are not on the top of a flybridge having no view of the back of the boat and if you were I would think you would change your view. you just have to turn your head ...
Click to expand...

OK
We are going to have to agree to disagree on this one.
My point is that I look at a screen then I turn round to drive the boat backwards (which I do a lot).
My brain doesn't have to convert what it has just seen in the monitor to the actual view astern.

I suppose it might come down to your individual style of driving.
I don't sit down to drive - I expect to view round the whole boat (bow, stern, port and starboard).
I walk around the FB looking over the sides.
So the docking cameras are just an extension to this - another view.
Flipping this view is pointless.
As I say, all IMHO
 
markc said:
I have been looking for the same for a while and haven't found anything - I ideally would like IP cameras to hook up to my FB plotter. If that worked I would aim for one in the engine room and one up front for the anchor.
Click to expand...

I've said lots of times - be careful with IP cameras.
The delay can be over half a second.
I want the view to be instantaneous - especially with docking cameras.
My docking cameras are old analogue - my anchor cam is digital (IP)
The IP camera has a noticeable delay which I wouldn't want on a docking camera - for obvious reasons.
 
Hurricane said:
You are correct, of course.
But speaking from someone who has tried it, I found it confusing.
Click to expand...
Did you try the single camera flipped horizontally, or the 180° rotated view?
If the latter, I'd be curious to hear on which installation, because for some reason it's a solution which I never saw on any pleasure boat...
 
Hurricane said:
I've said lots of times - be careful with IP cameras.
The delay can be over half a second.
I want the view to be instantaneous - especially with docking cameras.
My docking cameras are old analogue - my anchor cam is digital (IP)
The IP camera has a noticeable delay which I wouldn't want on a docking camera - for obvious reasons.
Click to expand...

Yes, I had heard that (probably from you!) - unfortunately the Raymarine plotter I have on the FB can't take an analogue input. Maybe I'll just have to have a separate screen for the reversing camera (when I find one) and have IP for ER and anchor
 
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