The Sony pinch caps seem to hold better than other brands lens pinch caps .I don’t know about canon or Fujifilm but use Nikon and Sigma . Live the new Sigma Magnetic Caps the best . Nikons pinch caps are just ok and the Sigma pinch caps are hard to get on and the square edge on the outside of them let them get knocked off easy . I’ve lost quite a few Sigma Art lens caps by popping off from knocks . The Sony caps hold tight and are shaped not to have an edge to catch .

I don't no what some of you are talking about saying it dose not work with sigma. It dose work with both of my Sigma 70-200mm sport and 150-600mm Sports but the Auto Focus dose not work with I don't mind and it dose not fall off. I love it and it works really well. I just got it.

I’m using these indoors as satellite / rear speakers in a 5.1 setup - the front left/right are also Moukey, bigger shelf sitting models. In this use case they are an excellent upgrade from my prior Sony speakers. With multiple drivers and lower impedance, they create a powerful but clear sound. They were easy to mount (I was able to use the existing universal mounts I had used to wall mount the Sony speakers) - the wiring is all the same as typical speakers - red and black speaker wire, the higher quality the better.They do have multiple mounting options - they come with a swing bracket attached that can easily be used - because I have the universal mounts already tied into studs, I didn’t end up using them - if you remove them, you can access a typical “keyhole” type mounting system integrated into the back of each speaker which is what I’m using.Because I’m using these indoors, I can’t really comment on the waterproof capabilities (or lack thereof) but they do seem to be at least as well weatherproofed as the outdoor speakers that I currently use so I think they’d hold up just fine as long as you can protect the wiring connections from getting wet.Overall, nice speakers and a decent value at the current price - definitely give these a look if you’re in the market for new speakers!

No, it's not a $1000+ DSLR, but for $90 (as of this review), the quality of this camera comes admirably close for way less money.I have both versions of this camera (the 5-50mm, and this 2.8-12mm one), and for the price, they're both in a league of their own as far as camera quality goes. Cheap webcams under $40 are a dime a dozen, some of them are even 4k but there is a reason they're that cheap. The quality usually isn't that great with blown out, inaccurate colors, poor focus, and/or blocky pixelation in dark colors or just in general... In addition to all of that, the number of camera settings that are unlocked and adjustable (within OBS or other software) are usually pretty limited. These cameras though, yes they're more expensive, but they're walking the line between "webcam" and "DSLR" for an extremely reasonable price, and you have all settings unlocked and adjustable.The 5-50mm version will be a narrower FOV but have more zoom/close-up range, and this 2.8-12mm will have a wider FOV. What does this mean? Well, if you're gonna be placing this camera within 2ft of your face, you will probably want the 2.8-12mm version because the 5-50mm will likely be too much of a closeup at that distance. It all comes down to personal preference but I'd say beyond 2ft distance, the 5-50mm camera can obtain a solid chest-up shot.The 5-50mm camera will need quite a bit of light to look good. I have two ring lights set up on either side of my desk and they're probably not the brightest but I had to do quite a bit of adjustment of camera settings in OBS (exposure, brightness, contrast, gamma) to get it to look good, even with the iris wide open. The 2.8-12mm however requires less light. I still made adjustments but it was nearly good to go on its own.Overall, these are really solid cameras for the price. True 4k resolution and quality without pixelation. Your co-workers and viewers will notice the difference compared to any other cheapo 4k camera. You will need some sort of stand for it however. I got some bendable gooseneck-style arms to attach to my desk and mount these on, and they work great, but if you're gonna get a small tripod or something, you may want to consider something heftier because these cameras are weighty compared to your average webcam. However you may need to set your tripod up to aim the cam where you want it could be a tipping hazard with the weight so, take that into consideration.

I ordered the 52mm filter because the 30mm f1.4 sigma lens for sony e-mount cameras has a 52mm thread but after lens arrived, I couldn't fit it on.But after-service support was pretty helpful in telling me this

The 4K Ultra HD USB Camera with UHD 2.8-12mm 10X Varifocal Lens is a USB high quality Camera with 2160P. It also has the high quality Sony IMX317 Sensor UVC Com. The picture quality is excellent and so is the brightness.

Light works well but it small. I was hoping I would be able to mount my Sony a 6400 in the center but it’s too small. You would definitely need a very tiny camera. I have my camera on it’s own tripod behind the light in my photo attached. Light has a nice brightness, multiple settings and does the job.

Why i first went with the Sigma 35 i have no clue! Ended up getting this one after my sigma took a fall and was getting repaired. I know am selling my Sigma 35m because it can't compete with the canon version. Its worth every penny.