RFN-4s Wireless Remote Shutter Release for Nikon DSLR with MC30 Type connection (Nikon D200, D300, D300s, D500, D700, D800, D800E, D810, D1, D2, D3, D3x, D3s, D4, D5) - Transmitter and Receiver Set

I've used the SMDV RFN-4s wireless remote shutter releases for several years and I love 'em. Small, relatively inexpensive, very lightweight and they "just work". I own two of them... and I'd buy them again tomorrow if lost or stolen.The RFN-4s DOES WORK with the D850 BUT because of the "Silent Shooting" mode in the D850, in Mup (Mirror Lock Up) mode, if you are in "Live View" using the RFN-4s, the D850 will NOT allow you to press the shutter, wait as long as you desire for camera / tripod shaking to dissipate, and then cause the remote to make the exposure by pressing the trigger again. The D850 will make the exposure immediately.I use a Tamron 150-600mm G2 variable for astrophotography. Its a large heavy lens and I often have to wait five, or more, seconds for vibration to dissipate after touching the camera / tripod. On the first push of the RFN-4s button, the D850 will automatically make the exposure without waiting for you to actuate the shutter the second time to make the exposure.If you are using the camera's viewfinder, the RFN-4s will work as it always did on various other Nikon cameras, which is a good thing because these remote shutter releases are great. The camera is doing that, not the RFN-4s.For the few people that are into astrophotography, you can just place the camera in "Live View" and "Silent Shooting" mode and use the RFN-4s to make the exposure. Since the shutter isn't moving, you'll not incur any vibration as the image is captured electronically. Just ensure that you waited long enough for the vibration to go away. Or make focus and exposure settings in "Live View", then place the camera into "through the viewfinder" mode and capture the image.Required a few hours "trial and error" to figure this out, but RFN-4s does work just fine with the D850. It does work a little "differently" than what you might be used to if you've this product previously but this seems to be because of the D850's "Silent Shooting" mode, and no "fault" of the RFN-4s.Hope this saves some people some aggravation.

I bought it to use it with my D850 and it works like a charm.I saw in many reviews that keeping the receiver attached to the camera when not using will result in battery drain, and I hate to remove and attach the receiver back every-time I want to use it - hence, what I do is I simply remove the battery from the camera when I'm not using it and I keep the receiver attached to the body all the time.I hope it helps!

I recently bought this remote for use on my Nikon D800. When shooting on a tripod, any shake of the camera, even the slight movement from a gentle push on the shutter can introduce blur, so for the clearest, sharpest pictures it's important to use a remote shutter release.In the past, I've always used a cable release, but it's a pain to put the 10-pin plug in the socket and screw it down, then remove it again for handheld shots. And on again for the tripod, then off again for walking around, again and again. What actually happens is that I abandon the cable release and put up with the motion blur from using my hands. I've tried leaving the cable release attached, but it dangles and gets caught on clothing and other gear. The same is true trying to put the camera with cable release attached into the camera bag.This device solves those problems. The receiver, which is mounted onto the 10-pin connector to the side of the DSLR, is truly diminutive. It fits into a tucked-away contour on the camera, and is quite unobtrusive. There's no problem leaving it mounted all day, and switching back and forth easily from remote to manual trigger, via the little on-off button on the receiver. Very quick and easy. And it goes right into the camera bag, still mounted on the camera, no hassle. Great!!And it works. Press the button on the transmitter halfway, and the receiver tells the camera to focus, just like with your finger on the camera's shutter release button. When the camera has acquired focus, the blue light on the transmitter goes from bright to dim. Then push the button all the way, and the blue light goes out momentarily, telling you you've successfully taken the shot. If the camera can't focus and fire, you see a red light on the transmitter, telling you to re-compose your shot for better focus.And it works fine for bracketed shots. I shoot a lot of 5-exposure HDR brackets, and this remote handles it fine, just like regular shooting. This where the remote shines brightest, because any slight movement of the camera will be most evident when several exposures are combined in HDR software.I love this thing!! I'm so glad I got it! I'm glad it exists. A few years ago, nothing like this was made -- by anybody. But here it is. It's inexpensive, and the build quality is high.Anyone needing a remote for their Nikon DSLR would not go wrong buying this product. Highly recommended.

Update 1 week: Lost it. I understand why Nikon went with the screw on accessory port however it doesn't work to keep things attached. Because it is hard to get things on and off I just wanted to leave this on even if I wasn't going to use it at the time. I checked it, it was snug and tight. However, I went for a five mile hike in the woods and took a few photos. Later on I realized I had lost it. Somehow it worked itself loose. Five miles of dirt, weeds, grass, needles I would never be able to find it. It's not the fault of the remote just Nikons poor attachment port. Now I have to make sure I check it often.--------------------------------------------------I like to shoot long exposures and macro with my D810 and a remote is a necessity. I got one of those cable remotes which work great but I found occasionally I would move too much and end up jerking the camera anyway. Plus I had to disconnect it when I was done or it would just get in the way. This is exactly what I needed! I can really back away from the camera, even sit in a chair or find a log. It works very well. Plus I can leave it on the camera which makes it always there, ready to use.There are a couple of issues: I hope I don't knock the antenna off, wish it was shorter or sturdier. It also blocks the the bracket and flash mode buttons. While it does fit the D810 it is hard to get on but that's been true with all accessories that use that port.Overall, I am thrilled I got this, it makes shooting on a tripod that much easier.

Perfectly easy to set up and get started. Very professional with a very small footprint. Love that this is cordless and doesn’t keep me tethered to my camera. The latest version is slightly smaller and an improvement (if that’s possible!). If you’re thinking about buying this, I’d say your mind is already made up: just get it...