needed an endoscope camera because I wanted to determine where power cables were running under our false ceiling. Teslong's camera came at just the right time. The Teslong device comes in a sturdy hard plastic case. The scope of delivery includes the handheld with a 4.3" display, a 5 meter waterproof camera hose (with triple camera), a device stand, USB-C data cable, various attachments for the camera, a 32GB micro SD card, a mini Allen key and instructions (incl. German language).The camera is securely attached to the handheld and can be removed using a mini Allen key.The connection of the camera hose then turns out to be a USB-C cable (whether this can also be connected to other devices I couldn't check whether it can be used in this way). I was immediately enthusiastic about the model, since it comes with a self-sufficient handheld. I already had various endoscope cameras. However, they always had to be controlled using an app (sometimes not very trustworthy ones). Depending on the Android or iOS version, it was not possible to get the cameras to work at all and it is also not possible to handle a notebook in a narrow corner t that simple. So a huge plus point for the Teslong camera. The battery was already pre-charged and the SD card was already inserted and pre-formatted. So it could start right away. The camera hose is relatively rigid, so you can drive through longer pipes or areas that are difficult to access. The rigidity meets my taste. In the past, cables were relatively thin and most often snapped and jammed immediately after entering a choke or duct. The device itself is comfortable to hold and easy to use. The buttons are large enough to operate the device with one hand and guide the camera with the other. During the test, I stood on a ladder under the ceiling and inserted the camera through a small opening in the ceiling light (diameter of the camera housing approx. 8.5mm). Everything is easy to see on the display and the pictures taken also correspond to what is shown on the display. The built-in LEDs are great and also illuminate a pitch-dark area well. The camera can be switched 3 times (to the front, to the left and to the right). In this way, an area can be viewed almost 360° without rotating the camera tube. There is also a 2x digital zoom with 1.3x and 1.5x (although the quality of the image decreases here, mostly due to the poor illumination in a dark room). The handheld also has an LED installed in order to get a good picture of the insertion opening even in a poorly lit area. Conclusion: I am totally enthusiastic about the device and it exceeds my expectations. I was able to do all the work I wanted to do with it with no problems (I found all the cables I was looking for in the ceiling). At the beginning the price seems a bit high, but you get a top device that is super processed. Simply unpack and start looking: no more installing apps, looking for adapters for your smartphone or sitting in a tight corner or niche with a bulky notebook, thanks to the self-sufficient display. The pictures taken in HD quality are great and the endoscope can be used very flexibly thanks to the 2 cameras. For home use, there is a clear purchase recommendation.

All in all a very good camera for the price!

I needed an endoscope camera because I wanted to see where power cables were running under our suspended ceiling. That's when Teslong's camera came in handy.

The device from Teslong comes in a sturdy hard plastic case. The package includes the handheld with a 4.3" display, a 5 meter waterproof camera tube (with triple camera), a device stand, USB-C data cable, various attachments for the camera, a 32GB micro SD card, a mini bus key and a manual (incl. German language).

The camera is securely attached to the handheld, but can be removed using the mini-inbus key. The connection of the camera hose then turns out to be a USB-C cable (whether this can also be used on other devices like this, I could not check now). I was immediately enthusiastic about the model, since it comes with a self-sufficient handheld. I already had various endoscope cameras. However, they always had to be operated via smartphone or notebook using an app (sometimes not entirely trustworthy). Depending on the Android or iOS version, you couldn't get the cameras to work at all, and handling a notebook in a tight corner isn't that easy either. Therefore, a huge plus point for the camera from Teslong.

The battery was already pre-charged and the SD card was already inserted and pre-formatted. So we could start right away. The camera hose is relatively rigid, so you can also drive through longer pipes or hard-to-reach areas. The rigidity is to my liking. In the past, the cables were relatively thin and usually snapped off and got wedged right after being inserted into a constriction or pipe.

The device itself feels good in the hand and you can act well with the device. The buttons are large enough to operate the device with one hand and guide the camera with the other. During the test, I stood on a ladder under the ceiling and inserted the camera through a small opening in the ceiling lamp (diameter of the camera housing approx. 8.5mm). Everything is clearly visible on the display and the pictures taken correspond to the display. The built-in LEDs are top and illuminate even a stock dark area well. The camera can be switched 3-fold (to the front, to the left and to the right). Thus, an area can be viewed almost 360° without turning the camera tube. In addition, there is a 2x digital zoom with 1.3x and 1.5x (although here the quality of the image, usually decreases due to the low illumination in a dark room).

The handheld also has an LED built in to get a good picture of the insertion port even in a poorly lit area.

Conclusion:
I am totally thrilled with the device and it greatly exceeds my expectations. I was able to do all the work I wanted to do with it without any problems (I found all the cables I was looking for in the ceiling). At first, the price seems a bit high, but you get a top device that is super processed delivered. Just unpack it and start looking: no more installing apps, looking for adapters for the smartphone or sitting in a tight corner or niche with a clunky notebook, thanks to the self-sufficient display. The pictures taken in HD quality are super and the endoscope is super flexible to use thanks to the 2 cameras. For home use, there is a clear buy recommendation.

Since I started testing K&F filters, I have become a big fan of the company. The quality of the filters and construction are excellent. The glass was of exceptional optical clarity and the brass rings are precision machined. I have never had any problems with cross threading or pulling off. The filters go on very smoothly and come off just as smoothly.

They are all filters that have just enough friction to stay where you put them, but they turn buttery smooth on the camera so you don't have to worry about moving your camera around on the tripod. They are just a real joy to use. This Euler filter per check mark has corresponding markings on the edge so you know which stop you're at, and it has a little tab that makes it easy to rotate the filter. It is very unobtrusive and should not interfere with your image, i.e. no vignetting.

In the old days, one problem with variable neutral density filters was that you would see this artifact of the two polarized plates crossing and these optical "X" artifacts in your image. I believe the newer ones used spiral circular polarization so you get an image without artifacts.

This filter does exactly what it is supposed to do, darken your image to allow longer exposures, or just block out extreme light and glare on a very bright day.

One thing that strikes me about this filter is that its metering is extremely accurate. If you say it for four stops and then take it off and lower your camera by stops, the lighting will appear identical, although there will be a little more glare without the filter because the polarization also reduces the glare.

Another optically perfect excellent filter from K&F.

Honestly, I can't find a better home security camera for the price

I remodel Homes and Restore old cars ,Trucks, and Tractors as far as homes go I sometimes need to look into a wall before cutting my way in. A small hole drilled in the wall is easier to repair than a big one. for that I use the 16 ft. camera. Just recently I had a call to look for where a bunch of bees were getting into an upper bed room. To my surpise and the home owner, the bees were there first. I could here them buzzing in the uuper part of the wall. The nest was actually between the ceiling and the attic. I drilled another hole in the ceiling about 12ft away from where i heard the buzzing and feed the camera into the joist space. WOW really WOW. I feed the camera in and along the plasterd ceiling I could only get in about 8 ft. the nest was 4 ft. long and had hundreds and hundreds of bees. We called in the exterminator. then I riped out the ceiling and the nest. I swear by this Endoscope..It's great for looking into small or hazard spaces. for automotive use I'd get a 4 ft. camera. picture is sharp and clear.. nice tool.

I am using this camera to collect evidence on our neighborhood bully.

I bought the K&F Concept endoscope after considering several other more expensive units. After reading the online reviews, it was clear that the K&F Concept endoscope could provide me the same features (in some cases more) for much less cost. It arrived withing 5 days and I used it immediately to check for blocking in an old homes ceiling before mounting a ceiling fan. Within 5 minutes I had a clear picture of the joist space and blocking. Instant peace of mind knowing the fan would not come crashing down after installation. I have lent it to other contractors on job sites and everyone has been very impressed with it's features and capabilities. Very happy with this purchase and would definitely recommend this product to anyone looking for an endoscope.