Great product for my electrician son to use when running cables. Has a flexible endoscope cable with good rigidity that allows for good camera control. 2 camera positions, one at the very end and others on either side; all have individual LED lights. Cameras display high-quality images up close. These images can be captured by photo or video. Also records sound. A button to switch between cameras. Waterproof SD card included. Overall fit for purpose, well made and easy to use.

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.

I've tested some cheap variable ND filters and this one is by far the best for this really small price. The main feature is that this filter really does not deliver any cross image errors, unfortunately this is a problem that all cheap filters have but the one from K&F delivers a flawless image! The color shift is also only minimal and provides decent sharpness! I use this filter on a BMPCC 6K to shoot in daylight with the aperture completely open. If you can't spend more than 100 € on a good filter, this is pretty good for you.

I can highly recommend this article. The delivery was really fast. The first view was nice, because it looks quite strong and it feels that I will not break so fast. Which is good because I take most of my picture while I am hiking.

This filter is really good also for filming and long exposures, so I don't have to change filters. I can use this one for many different situations. The prize is also really good and in the postproduction I saw no problem while I was editing in lightroom.

So if you want to have a good filter which is not to expensive then this is a good is good choice!

Filter up to my expectations, consistent with the description, no cross!!
This is very good value for money! I can only recommend.

Die Lieferung erfolgte durch Amazon sehr zügig, wodurch ich den ND-Filter innerhalb kürzester Zeit testen konnte.
Der erste Eindruck war positiv, die Verpackung samt Kunststoff-Etui schützte den Filter bereits beim Transport zu mir.
Das Kunststoff-Etui macht einen stabilen Eindruck und besitzt einen simplen und dennoch stabil wirkenden Verschluss, sodass man dieses auch mal lose im Kamera-Rucksack verstauen kann.

Die Einstell-Hilfe ist (nicht-linear) gekennzeichnet und hat zwei End-Stopps. Die ersten Versuche mit dem ND-Filter waren schon ganz okay, bei besserem Wetter versuche ich mich am nächsten Fluss oder in der Stadt und werde die Ergebnisse ggf. nachreichen.

Für 48 Euro ist der ND-Filter von K&F Concept absolut top, letztens war er sogar für gut 40 Euro im Blitzangebot verfügbar. Von mir eine absolute Kaufempfehlung!

Bought this filter for my friend as a birthday present. She loved this filter. She is starting as a photographer. She said it is very easy to use, easy to install and easy to clean.

It works fine with my normal spectrum camera even at ND 128 there is no cast to be seen as in shot 3. The vignetting is due to a DX lens being on a FX camera and is nothing to do with the filter.
Shot 1 is ND 128 on a full spectrum camera, shot 2 is the view from a full spectrum camera without the filter. ND 8 is just a paler version of shot 1.

Nice and sturdy filter for the money. King in low budget range.

This is my third and I'll try the new release next. K&F delivers again, prooving these can be produced and sold for a reasonable price.