This thing works great in the dark. The green is nice is clear and the zoom in after a little focus is almost perfect. The head strap has no problem fitting my head and stays on well. 8x zoom is awesome to see past 200 feet, seems like it’s only 25 feet away.

The K&F Concept Laser Golfing Rangefinder with 6x magnification is a high performance device that can accurately measure distances up to 1200 yards. The range finder has an LCD touch screen and a voice function that makes it easy to operate even in bright sunlight. The device is also equipped with a USB charging function, which makes it convenient to charge the rangefinder. A great option for both golfing and hunting, this range finder provides fast and accurate readings to help you improve your performance. With its powerful laser and advanced features, this range finder is a great choice for both novice and experienced users. Overall this is a good rangefinder with decent specs.

I love this small microscope, I keep it in my pocket when taking my grandchildren to the park.
It is very easy to focus first then zoom in and refocus if necessary. The dials for both zoom and focus are easy to turn.
Teaching science and nature whilst having fun. My grandchildren have tried it on leaves, flowers even the feather from a duck. It comes with some prepared slides but to be honest they want to find their own things to look at. Seeing tiny insects in the soil and on the inside of a plant leaf.

For the price it is actually very good. HDMI, 1080p, own display, 3 different light sources and good zoom and focus capabilities.

I've used several rangefinders on my travels and this one is by far the easiest to use with one hand. The focus wheel at the top of the rangefinder can be adjusted with just your index finger, while the meter and mode buttons at the bottom can be operated entirely with your thumb. This one-handed operation is particularly useful for eyeglass wearers like me, as it virtually eliminates the common smudges that result from having to adjust the image with one hand while trying to steady the rangefinder with the other. The interface is simple and intuitive, with discrete functions to control distance, angle, and speed. The accuracy is among the best I've seen, adjustable to tenths of a degree. I like the lock-on mode that locks on a specific target. USB-C charging is a great convenience for me. It can be charged anywhere - at home, in the car, in a coffee shop, etc. I really appreciate not having to keep changing batteries. Overall, the picture is clear and true to color, ideal for either watching the game or just enjoying the scenery. The range finder is extremely compact and lightweight, yet robust. It comes with a protective cloth pouch and is small enough to fit in a pocket, backpack or gear bag.

The zoom range and aperture are incredible, you no longer have to carry around at least 2 lenses. It's sharp and focuses well* It does have a few downsides though: *On the a7iii it sometimes doesn't focus at the long end of the zoom and only starts to focus when you zoom out slightly and then zoom back in. The other is that the lens cap falls off very easily.

use the SEL50f1.8 on my NEX-5N. The workmanship is very good and the materials appear to be of high quality. My motivation for buying this lens was primarily the high light intensity and, according to all tests, the very good imaging performance. I was not disappointed in either respect. Even with an open aperture, the edge sharpness is much better than with the (stopped down) 18-55mm kit zoom. From approx. aperture 2.8, the 50mm lens then produces excellent images over the entire range! As with the kit zoom, the built-in optical stabilizer enables relatively long exposure times, even without a tripod. 1/10s to 1/20s are handheld with no problem, or even less if you have a steady hand. Up to now it has practically never been necessary to set the ISO higher than 3200, which makes the NEX a very good "available light" camera. The exposure potential is also very good at an aperture of 1.8 and the bokeh is very pleasant. The focus motor works relatively quickly and quietly, but the aperture blades may be audible when focusing because the aperture is opened. In my opinion, the autofocus is a tiny bit slower than with the kit zoom, but it is fast enough for my needs and, above all, very precise. Manual focus (steer by wire) is also possible and works very well due to the smoothly running focus ring. For videos, however, I find the "crank travel" when focusing manually to be a bit too long. Very precise adjustment is possible for this. If you are looking for a sharp, fast fixed focal length with autofocus, you will have a lot of fun with the SEL50f1.8. In my opinion, value for money is very good.

It's not really a microscope, there is no zoom, only a focus. However I bought it to check pins on a CPU and it served its purpose.

Vendor replaced the stand right away, much better, 5 stars!