That is a PTZ cam, not a turret cam.
AKA Eyeball
You would have to define 'highest quality video'. Just because the video has lots of pixels, does not mean it is of 'high quality'. Do not chase pixels.
That is not correct. The sensor is a 1/1.8" sensor. So the sensor size is 0.555". Not sure why they just don't state it that way. Have never read anything that states why they are listed as 1/1.8" or 1/2.8". Seems to me that is always confusing to folks.
As of right now the 4k/X is only available as a bullet.
So true. It is All about the Sensor Baby, well mainly
Man I like reading ya'lls post, you guys teach me so much, I am still such a novice but this is what I now know: It is so true, each Cam will have it's own unique location. it's purpose, different lighting requirements, FOV, etc. So many more can be listed. I too, as many do, first fell for the MP Hype. This Forum changed all that.As of right now the 4k/X is only available as a bullet.
You cannot add IR lighting to these cameras as they cannot see infrared. So far it appears the 1/1.2" sensor cameras will be color only without ability to see infrared.
Please look at the thread posted above - Do not fall for the hype of 4K.
You need to identify the areas you want to cover and pick a camera designed to cover that distance. In some instances, it may be a 2MP or 4MP that is the right camera. DO NOT CHASE MP!!!
Many people still prefer the 5442 over the 4K/X.
These cameras cannot digital zoom like you see in the movies and TV. You can do a little, but not a lot.
Look at this thread from just yesterday where someone compared a 3MP to 8MP on digital zoom..you will see that the difference isn't that great.
8mp vs 3mp image comparison
hello, I have an 8mp 1/1.8" sensor PCI-T18F2S on the top and 3mp 1/3" sensor DS-2CD2132F-IS on the bottom. Both cameras are 2.8mm and the cereal box is at 15 feet in both cases. I would expect a much better image from the 8mp. What do you think? I'm sure you would like to have a lot more...ipcamtalk.com
Or this thread:
How much resolution is really needed for LPR
We have folks come here all the time thinking that more MP is better, whether it be for general purposes or for LPR. Those of us that have been around long enough know that sensor size is more important than MP. Those that have been here awhile know that I share a representative sample of...
, I even have my 5442 IR turned down , well not for that reason, so I don't have facial washout...LOLMaybe because it's not 0.555"? The IMX347 sensor is 0.356", called a "Type 1/1.8" sensor by its manufacturer. The inches part gets added by Dahua.
So what you are saying here is that everything I have read here about sensor size is wrong? Everything that the long-time, respected contributors here have been stating is wrong info on sensor size?
I can't tell if you guys are joking... Am I missing something here?
Not joking. See the PDF that @tigerwillow1 posted.
But then a type 1/1.2 sensor would be nearly a square picture and type 1/2.8 sensor would be very wide?
That's not it either. The diagonal size of a solid state sensor is converted to the diameter of the circle that would be needed to contain it, then rounded off to a commonly used "type". Because of the rounding, even sensors of the same type may be different sizes. Similar to how TVs are now advertised by their "class" instead of their exact diagonal measurement. It's explained here:
This "inch" system gives a result approximately 1.5 times the length of the diagonal of the sensor.
Therefore, 0.356 x 1.5 = 0.534 which is approximately 0.555
No? Just that the 1/1.8" = 0.555" sensor size type should be divided by 1.5 to get the true approximate diagonal sensor size?
It seems to me the 'common knowledge' is still correct just the actual sensor sizes are overstated by 1.5 x ... @sebastiantombs will have to choose different caliber rounds in his examples
Since you can calculate the pixel size using the resolution (w x h) and the "Optical Format" (i.e. 1/1.8") it still seems to me that the 'common knowledge' is still correct.
