In the last couple of weeks, I realized that most of the reviews here do not explicitly investigate close focus. Given the trend and the problems with the latest "light harvester" cameras, it has become an issue.
The 1/2.8", 2MP f=1.6 cameras already had very good night performance. And they required a close focus of 1.3m on the F=3.6mm model. If you look at a Color-4K/T 3.6 mm, you are now looking at 5m. This is the price you pay for the brightness and resolution.
I would therefore suggest that reviewers investigate the behavior of the lens at and below this close focus distance. Or if need arises (blurry already), above this distance.
How could this be done? If I had to do it, I would use my neighbors brick wall, and point the cam at it at right angle. Center distance would be the close focus spec value. I'd hang something with lines in the Center (maybe print some resolution page from the net), and see how it looks. You have the mortar lines and the pic to judge deterioration when the cam moves nearer. The distance cam to wall should be measured, not guessed. In case of the color-4k/t, I'd try 5m, 4m, 3m. Depending on the results, I might add 4.5m or 3.5m, depending how rapidly the image deteriorates.
Of course, it would be possible to add this to the existing reviews, if someone has the cameras and is willing to take them down and the patience to investigate this. At the moment, I can only offer the single lens 5449-LED-S2 model for this. I have the 3.6mm at my desk, spec says 2.6 meters close focus. IIrc, there was a review where it could be added.
The 1/2.8", 2MP f=1.6 cameras already had very good night performance. And they required a close focus of 1.3m on the F=3.6mm model. If you look at a Color-4K/T 3.6 mm, you are now looking at 5m. This is the price you pay for the brightness and resolution.
I would therefore suggest that reviewers investigate the behavior of the lens at and below this close focus distance. Or if need arises (blurry already), above this distance.
How could this be done? If I had to do it, I would use my neighbors brick wall, and point the cam at it at right angle. Center distance would be the close focus spec value. I'd hang something with lines in the Center (maybe print some resolution page from the net), and see how it looks. You have the mortar lines and the pic to judge deterioration when the cam moves nearer. The distance cam to wall should be measured, not guessed. In case of the color-4k/t, I'd try 5m, 4m, 3m. Depending on the results, I might add 4.5m or 3.5m, depending how rapidly the image deteriorates.
Of course, it would be possible to add this to the existing reviews, if someone has the cameras and is willing to take them down and the patience to investigate this. At the moment, I can only offer the single lens 5449-LED-S2 model for this. I have the 3.6mm at my desk, spec says 2.6 meters close focus. IIrc, there was a review where it could be added.
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