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I have a Nikon D7000 and I see there are a couple remote release options from Nikon: the (wired) MC-DC2 and the (wireless) ML-L3 which is also about 40% cheaper than the wired remote.

Are there any good reasons one would choose the wired remote instead of the wireless, especially given the price difference?

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FWIW - I am not familiar with the Nikon standard, but for Canon Digital Rebel series, you can actually assemble a wired remote easily yourself, since the connector is a plain 2.5mm stereo plug. See diyphotography.net/release_cable_for_canon_dslr (you don't have to go that fancy. I did with one toggle switch). –  ysap Feb 28 '11 at 6:46
    
If you can swing it, go for both. I have both for the K-5 and will use them, the reasons for that are already enumerated by a few responses. :) –  John Cavan Feb 28 '11 at 12:07
1  
They only work with line of sight. To get more freedom use radio based units. –  kacalapy Mar 1 '11 at 16:38

7 Answers 7

up vote 9 down vote accepted

Infrared triggers can lose their minds when in the presence of sunlight or a strong IR source. The sun puts out SO much IR the receiver can't see the signal unless its window is in shade or very close to the transmitter. They do work really well indoors or at night though, and cost less than the radio triggers.

And, just as a FYI, a toilet-paper tube taped over the window can help the receiver pick up the transmitter's IR burst when there is a lot of IR noise as it helps the receiver's "eye" see the right IR source.

For that matter though, even PocketWizards can get confused when in the presence of lots of radio noise or certain transmitters. I had a shoot where I had receivers on both sides of me lock-up multiple times. I'd used them in the same location several times before with no problems, and the only difference was the announcer was using a wireless microphone. I'd have loved to have wired up sync lines and turned off the wireless that night.

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I have a wireless RF remote for my camera and now that I have wireless I would not do wired. The main reason is that there is less chance of tripping over the cable or having to worry about being tangled in it. Or if you are doing pictures with you in them you do not have to worry about hiding the cable.

Having said that I would recommend RF (radio frequency) over infrared. The biggest reason is that you do not need to have line of sight to the camera using RF. In addition from previous experience not everything IR works outdoors in the sunlight.

I use a Phottix Plato http://www.phottix.com/en/wireless-remotes/phottix-plato.html as my wireless remote. It has worked very well for me. I will be the first to admit that I do not have much experience with photographic releases but it has met all of my needs and is a lower price than some of the manufacturer's units.

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For these two specific units ...

Wireless ML-L3 - good for distance and convenience (for example it's easier to be in the shot yourself), but bad as needs line of sight and is unreliable in strong sunlight.

Wired MC-DC2 - good for the fact that you can lock it with the camera on bulb for exposures longer than 30 seconds, but bad as can only be used as far as it's cord of 1 meter.

Both can be used to fire the shutter without touching the camera so reducing camera shake, but beyond that they have their own specific purposes.

Rather than ask which is good from these two you would be better to ask why you want a remote shutter and what you will be using it for, then find one to fulfill that need. Personally I use two remotes, one infrared which has the capabilities of firing when the beam is broken and hence can be used to capture moving objects like animals. My second one is off of eBay and is a wired remote that has intervalometer capabilities, for example it can capture one frame every 30 seconds for 900 frames, cost was under $30.

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Disclaimer: I have not tried a D7000 yet, so I'm answering in general terms.

The only downside I know of is for using Bulb mode on some cameras.

With a cable release: You press the remote button, hold it down and then let go when done. Some remotes have an option to keep the button locked down, but you have to release it at then end of the exposure.

With a wireless release: The principle is the same except that you need to keep aiming at the camera's IR receiver. Otherwise, the camera may interpret the lack of IR signal as closing the shutter. If anything passes between the remote and the IR receiver, it may also happen.

The exact behavior depends on the exact camera. The ideal is that you click once to open the shutter and click again to close it.

On some, there is an option to control the behavior. I know both Pentax K-5 and K-7 (excluding original F/W) have that option.

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I find the "need to keep aiming at the camera's IR receiver" hinders me often, not only in bulb mode. You have to always be in front of the camera, shooting from behind it only functions if you are close enough to stretch your arm forwards and hit the receiver. –  rumtscho Feb 28 '11 at 9:53
    
Yes, in bulb mode it can be more critical. Do note that some cameras offer receivers on the front and back. –  Itai Feb 28 '11 at 13:55

Wireless: - needs batteries (so more stuff to carry around, and something that's sure to be needed just when you forgot to bring a spare and are somewhere with no battery store in reach). - easy to interrupt. Anything crosses between the remote and the camera, the remote won't work (as already stated, more of a problem when shooting in bulb mode). - needs direct line of sight to the receiver, which may be a problem at times if you can't aim the receiver to where you will be standing, it has a very narrow opening angle on its sensor, etc. (mind, those are model dependent, I don't know the specific model you're interested in). - as said already, can be fooled in direct harsh light. - typically more expensive to purchase

Wired: - most have shorter range (though very long cable releases do exist for some camera models). - contacts can be fragile, and the protection caps for them are easy to loose (and can be expensive to replace, though my dealer has managed to get me replacements for free a few times, but he has a very good relation with Nikon).

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I have both a wired and wireless remote for my Pentax K-7. Aside from technical considerations mentioned in other answers, the Pentax wireless remote is very tiny and easy to misplace in the camera bag, while the wired remote is bigger and easier to find. With Nikon or other brands, your mileage may vary.

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The main disadvantage between IR remotes and wired releases is that IR isn't that reliable outside in bright sunlight. It works much better at night or indoors, but outside, the sunlight can overpower the IR signal and drastically reduce range and/or reliability.

IR also requires line of sight between the IR remote sensor on the camera and the remote itself (think: tv remote). And most dSLRs have this IR sensor on the front of the camera in the assumption that you will be using the remote to make selfies (or group shots with yourself in them)--not that you will be using the IR remote from behind the camera. If you plan on using the remote for long exposure or night sky shooting, and you're going to be working from behind the camera on a tripod, it can be an interesting exercise in contortions of the wrist to get that remote pointed at the sensor.

RF (radio) remotes can typically remove the line-of-sight and range restrictions and work well in daylight, but instead of having to remember a single unit, you now have to remember two: the remote transmitter, and the receiver unit that plugs into your shutter release port. And both of them will require batteries. If you are considering an RF shutter release, realize, too, that most flash radio triggers can double as shutter remotes, so if you were planning on "going Strobist", you may be able to make your triggers do double-duty.

Wired releases may or may not require batteries, but you still have to remember to bring it along to use it, just like a wireless remote. But many wired releases can have additional features you will not find on wireless remotes: the ability to lock down the shutter button for bulb mode, intervalometers, timers, etc. But, of course, they're wired, so your ability to work the camera remotely is more limited.

Basically, these are two different tools, not replacements for each other, and many photographers happily have both in the bag.

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