Very Satisfied
If you have read the other reviews you will understand that there are limitations to this lens, but don’t let that discourage you. Keep in mind that the biggest aspect here was the price. I actually had fun trying this out today. You’re going to need a bright day because the aperture is fixed according to the focal length. For example, at 420mm the aperture is fixed at f8.3. As you increase the focal length, the aperture gets smaller until you get to 800mm where the aperture is fixed at f16. If you are interested in purchasing this lens, please read the special note that you need to use this lens in the manual mode on your camera.Remember, this lens is less than $100, so we are talking about something worthwhile for those who just simply enjoy photography.That said, I took several photos from a nearby location. The one where the heron is looking to the left is using the Canon 75-300mm at 300mm. The photo looking toward the exit sign was with the Canon 18-55mm at 40mm. I took these to compare this lens with those that have auto focus. All the photos but one are unedited (except for size) and the ISO was set to 100.I was very impressed with how the lens performed for one of this price range. It will take some practice and patience learning to focus manually, but it will pay off. As recommended in other reviews, use the live view on your camera and use a remote (or at least 10 seconds on the timer) to reduce camera shake. You have to remember that not only are you magnifying the subject, but also any movement.Unfortunately, it was so bright that I couldn’t really see the LCD screen to focus (I think I could have gotten the images sharper), so I had to do the best I could with focusing through the viewfinder. But still, I was happy with the results. With patience (required regardless) and some editing, I think you’ll be pleased.There will be some chromatic aberrations, which is to be expected, but with some photo editing (such as Light Room Classic), you should be able to clear that up.Overall, this lens performed as was advertised. It comes with an EOS adapter, which is metal instead of plastic (a plus!). The lens also comes in a bag. After a few minutes of practice attaching the adapter and then attaching the lens to the camera, I felt very comfortable. I keep the extra quick release adapter that came my tripod on all the time.If you want to have some fun with telephoto photography, then this lens is definitely worth getting!The photo of the jet was taken without the use of a tripod. The camera was set to AV so I only had to concentrate on focusing. I figure the jet was at about 28,000 feet but I could tell what type of flight it was. With $30 of the price you can’t go wrong!

Cheap!!!!
Not built well. No auto focus.

You get what you pay for
It’s an okay lens for the price. Does well enough in daylight conditions, but really suffers at dusk. Mainly due to it’s relatively high f-stop. Build quality isn’t great, but isn’t terrible either. Works well on a tripod, but shooting freehand can work as long as there’s enough light for a high shutter speed. If you’re going to try to use it during twilight, you will need a very sturdy tripod as well as a remote shutter release as ANY movement (including the slight movement from a mechanical shutter) can ruin the shot. I still haven’t gotten any sharp night shots with this lens, even with a tripod. The tripod mount is too far forward, making the whole assembly too heavy in the rear when zoomed out to 420mm. Perhaps it might do better with a mirrorless camera with an electronic shutter, but I don’t have one yet.Overall, I would say it would work okay for someone looking to get into wildlife photography on a budget. However, there are couple lenses that have similar magnification at lower f-stop that only cost $50 – $60 more than this lens. For instance, Opteka has a Cassegrain-type mirror lens in 500mm (non-zoomable) at f/6.3. Compare this with the Lightdow’s f/10 at 500mm. Although mirror lenses are a bit different from standard lenses, the smaller form factor and extra light makes them much easier to get shots without motion blur in darker environments, even without a tripod.

La calificacion en si seria de unas 3.5 estrellas pero me llego golpeado y abollado el lente, a alguien se le cayo en el proceso del manejo del lente, el lente en si es facil de usar y no se si tenga una mejor calidad de imagen si no fuera porque viene golpeado.

Perfect

come scritto nella descrizione arriva con adattatore per canon eos, però la qualità delle lenti è proprio del valore pagato, …. poco più che un giocattolo, lo tengo giusto per imparare a usare ottiche così lunghe, poi se vorrò fotografie di qualità devo proprio rivolgermi altrove e purtroppo probabilmente con tutti altri prezzi