Rear view cameras...

M

mariner36

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Joined
May 6, 2009
RO Number
31220
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442
I am purchasing a wireless rearview camera and have a choice between getting a "ccd camera" or a "cmos camera".

Both state the same resolution, both are waterproof, both have IR illumination, both are compatible with the viewing screen.

The ccd camrea costs significantly more than the cmos, although the cmos is listed as the "premium" camera.

I don't know enough about video cameras to know which is the better technology.

Any input is appreciated.
 
I use a system from a company called turnyernoggin...works well for me, and very reasonable priced..
 
Sadly, on the 36 Mariner, that is not an option.

The stadium seats in the back completely block the view to the rear.

Covenient when you have 12 people on the bridge, not so much when backing into the slip.
 
Are you sure you need a back up cam on a mariner 36? I've docked them multiple times before and as long as you can see the corner of the transom you should be able to get her in easy enough even if docking solo. If it were me I'd put a camera in the engine room to keep an eye on things while underway. :) As to your question though...I bet BillyIII can answer you best.
 
I'd put the camera in the guest bedroom...
 
I "think" the difference is that CCD technology uses less "noise" in creating the image giving you a higher quality picture with more pixels, but uses significantly more power than cmos (I have heard 80-100X more). CMOS is also relatively newer technology than CCD and may not have reached the same maturity level.

The preceding is just my knowledge of the technology, and like others, I defer to BillyIII on these matters.
 
Both accomplish the same end result, especially with today's technology. CMOS typically has lower power (equates to better battery life), but CCD inthe past produced better quality, but used a lot more power. Today, they've probably reached equal standing as far as performance. Here's an article I've pasted in from How Stuff Works:

* CCD sensors, as mentioned above, create high-quality, low-noise images. CMOS sensors, traditionally, are more susceptible to noise.
* Because each pixel on a CMOS sensor has several transistors located next to it, the light sensitivity of a CMOS chip tends to be lower. Many of the photons hitting the chip hit the transistors instead of the photodiode.
* CMOS traditionally consumes little power. Implementing a sensor in CMOS yields a low-power sensor.
* CCDs use a process that consumes lots of power. CCDs consume as much as 100 times more power than an equivalent CMOS sensor.
* CMOS chips can be fabricated on just about any standard silicon production line, so they tend to be extremely inexpensive compared to CCD sensors.
* CCD sensors have been mass produced for a longer period of time, so they are more mature. They tend to have higher quality and more pixels.

Based on these differences, you can see that CCDs tend to be used in cameras that focus on high-quality images with lots of pixels and excellent light sensitivity. CMOS sensors traditionally have lower quality, lower resolution and lower sensitivity. CMOS sensors are just now improving to the point where they reach near parity with CCD devices in some applications. CMOS cameras are usually less expensive and have great battery life.
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quote:
Originally posted by carver 2557

I use a system from a company called turnyernoggin...works well for me, and very reasonable priced..

Click to expand...


Ok, I am a fool, I googled this company! Got me!

Also have looked at cameras. Issue on flybridge boats is that you can only see one corner. Not a issue when docking between poles, just keep the pole you can see close and your fine. Issue comes in when your trying to back towards a dock on the side you can't see. You have no idea how close you are. For this reason I usually will always try to put the side I can see to the dock, but sometimes with wind and space this is now always possible. A camera is a nice to have though! I also am not sure looking at a camera screen is that easy, I have seen them and the view is not one I can trust.
 
I dont know where you boat, but what happens if there is salt build up on the lens? Wouldnt that defeat the purpose? I could NEVER rely on a camera for when I am docking. I always learned the boat I was on and knew where certain places on the boat had to be when docking and hitting my marks..
 
salt shoudln't be an issue for a stern camera as it's typically mounted high on the flybridge, facing aft.

whatever you choose, make sure the lens is wide enough to cover both corners of the swim platform, some don't.

in most cases, when backing in if you can see one corner then you know the other one will clear but it's nice to be sure. On my 53, i dock from teh lower helm and can see the pilings thru the aft deck doors and windows. On the 70 footer that i captain, with an enclosed flybridge, I rely on the stern cam to make sure i clear the pilings when coming out of the slip or when i need to back up or turn in close quarters as i have very little visibility aft from the helm. for backing in, I prefer to come down on the aft deck and use the engine controls isntalled there.
 
thanks for the replies.

Ironworks, after reading the info you presented, I am ggoing to install 3 cmos cameras. One for the engine bay, and two which will cover the cockpit and both rear corners and sides of the boat, all IR illuminated. The view screen is a 7" TFT unit.
 
Are those cameras wireless or you need to run the cable through the boat?
 
I have been thinking about a similar setup. However, I don't have a display mechanism on my helm. The radar and GPS screens are too old to allow external input. So, I'm talking to a network geek at work who says I can install a wireless network camera and access it from my DROID. As I dock, I stand the droid up on the helm. This can also double as a survalence camera when away from the boat.

If anyone has done this and can offer advice, I would appreciate it.
 
The cmos camera with a 7" display screen is only a couple hundred dollars.

You could also plug in a dvd player or other input to use it as a tiny bridge tv ,if you so desired.
 
I sorry but I can't even imagine needing 1 let alone 2 cameras to dock a 36' boat.

Can you post a picture or a link to a picture of this model Carver?
 
Bill,
I think Mariner has the older style Carver 36 Mariner (which is one of the most spacious 36 footers probably ever built, except for my Monk 36 which is obviously the perfect boat haha):

carver36-vintage.jpg
 
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