I pre-ordered this camera, and have now had it for about two months and taken over 10,000 shots with it. I'm upgrading from a Nikon D700. I'm not a pro, but I do occasional commercial jobs. I've updated this review several times, and will continue to do so as needed.
Vertical orientation: Nice. The vertical grip isn't nearly as contoured as the main horizontal grip -there's just not as much stuff to grab your hands onto (no deep pockets for your fingertips). Too bad. But when holding it for any length of time, it's sure a lot easier than holding twisting my arm above my head and rotating the camera. Note that the vertical grip has a programmable button on it, which I use for Mode (A/S/M/P). I understand the D3s didn't have this, which seems crazy -I use it all the time. I wish the vertical grip had all the buttons as the main grip does -e.g., there's only one programmable button, so if you want to use it for Mode, then there's no way to change EV +while vertical, or start taking a movie. Also, I wish the two function buttons (DoF preview, and the one above it) were replicated in vertical mode. They're not, which is silly -there's room right there for them.
I shoot one-handed a lot, at events where I have a flash in one hand an a camera in the other (using a set of PocketWizards). I thought the weight of the D4 would make this harder. But no: when holding it vertically, the D4 is a lot easier to manage than the vertical D700. (I never had a vertical grip for the D700, so I can't compare.) Even holding it horizontally, the larger grip makes it easier to manage the D4 than the D700 one-handedly -it makes the camera honestly feel substantially lighter. One gripe: the vertical joystick for adjusting the focus point is still a bit too much of a stretch to use with one hand.
Shutter: yep, it's 10 fps. Let it rip! Great for capturing faces of both kids and adults at just the right moment.
General ergonomics and build quality: Great. Totally solid.
Weight: Having never had a pro-sized body before, I feared it'd be too heavy. But no: once you throw a 70-200 2.8 on there, the difference between this and a D700 is pretty small, certainly not a big deal. I carry it around on an Op Tech slider strap bolted into the tripod port, plenty stable and strong.
Battery: 2000+ shots (including lots of live view and some movies), and it's down to half. That's plenty of capacity for me. The charger is a real monster to carry around, about 4x the size of a D700 charger, too big to just slip in a pocket. One BIG PROBLEM: after charging it the second time, I had the camera turned on and sitting out overnight. The next morning, the battery was completely dead. I have no idea what happened -the D700 never ever did this to me. Was the camera turned so the AF was being pushed all night? Or is there a bug in the auto-off? No idea, but I'll post if it happens again. (Update: This has now happened to me three times, where the battery has gone from 100% to 0% overnight. Very frustrating. The first time I thought it was because the camera was in my bag and the AF-On button was being pressed, so it was trying to focus all night long. But that's not it, since it was on a shelf the other two times. Since I don't see others who have had this problem, I'm sending it back to Nikon for service.)
[Update: Beats me what the root cause was, but Nikon replaced the logic board and I haven't seen the issue come back.]
Lit up controls: Nikon won't point this out, but they don't *all* light up! Most do, but not the trash, or playback, or EV+-, or Mode, or Live View. Huh? All the buttons on my cell phone lit up 10 years ago. It's not that hard.
XQD card: Fast to write, fast to transfer. I love it. Being able to shoot off dozens of RAWs without stopping is great. Nice of Nikon to include the card and reader (but really, I'm not sure they had any other option here -the market isn't exactly flooded with these cards).
Live View: Works a million times better than it did on the D700. It's kind of funny though: it now makes the pro-DSLR able to shoot as easily as a $200 point-and-shoot. But whatever: Live View is nice to have. It's fast and intuitive. One advantage that isn't obvious: you can use it to set the focus point to the far corners of the frame, well outside the small area of the sensor covered by the 51-point AF grid. How I wish Nikon would allow the main AF system to focus in the far corners too: those 51 points still only cover about 20% of the camera's full frame! More in DX mode, but come on, Nikon. This is probably my single biggest complaint about the camera (or any DSLR) -bigger focus area please!
Focus modes: I was initially bummed to see that the three-position focus-mode switches from the D700 had been removed, replaced by 'software' settings using the main control wheels. But after using them I'm fine with the change, even in favor of it. The number of focus modes has increased (because you can change between 9-, 21-, and 51-point tracking easily now, which were hidden in a menu before), and the design works pretty fast. Disadvantage is that it requires two hands to change modes, where you used to do it with one.
The built-in AF motor is noticeably faster than on the D700. Live View mode uses contrast-detection focusing which was ultra-slow on the D700 (especially using motor-driven lenses like the AF-D's), but pretty usable now.
Face Detection (in Live View) works great. It's super easy to get low-angle shots holding the camera away from your body. If the subject moves you'll see a green box on the LCD follow the face around -it's pretty cool to watch it track.
Believe it or not, Face Detection also works through the pentaprism viewfinder. It took me awhile to believe this, but it really does. I proved it to myself by displaying a photo of a face on my laptop's screen, and focusing the camera on it. And like magic, no matter where it was, the focus indicators would lock on to the eyes. If I panned so that one eye left the FOV, then the focus would jump to the other eye. This is really cool. However, in reality it only works moderately well... I mean, if you're shooting at 24 mm in a busy room, and there's a few people in front of you, the camera is likely to focus on the wall instead of the people. Switch to Live View and it'll lock right on to the faces. Switch back and it jumps to the wall. My thought is that when using the viewfinder, the camera is dong face-detection on the smaller 91,000-pixel metering array. When using Live View, it can use millions of pixels from the main chip. Small faces can get hidden in 91,000 pixels (that's sub-VGA resolution!), but are seen in the big chip. I'm not knocking it, since it's clearly state-of-the art... it's just not perfect.
One cool thing about face detection is that it also finds faces on playback (even if face detection wasn't used on that shot). Scroll the front control wheel and it'll zoom in to just the face on every image, so you can easily check focus on the parts you care about. Super.
Metering modes: Too bad that the three-position metering switch is now an electronic controller, set in the viewfinder. But it turns out to be no big deal, because the metering on the D4 is really an improvement from the D700. I used to have to go to spot metering a lot for faces in the shade, and the auto face-detection now catches that so much better than it used to, that I haven't been using spot metering very much. Really, the new metering is very, very good. It has its quirks though: like, let's say you're taking 10 shots in a row of someone's face. If on one shot they turn or are blocked and the face-recognition doesn't work right, then that shot is likely to be underexposed by a stop relative to the rest in the series (see my example photo of this posted on Amazon). In the end underor over-exposure by a stop or two is no big deal on this camera if you're shooting RAW, because the files give you tons of leeway to work with to fix the exposure in post. But it's always best to get the exposure right the first time, and the D4 does a better job of that than the D700.
'Quiet' and 'Silent' modes. Quiet mode is indeed a lot quieter than the regular shutter. It seems to move all the mechanical parts slower -so you hear it for longer, but it's definitely quieter. Limited to 1 fps or so, and it doesn't work in Continuous mode (except if you're in Live View, in which case it does). Silent mode takes 2 MP shots in Live View mode (essentially movie stills shutter must be between 1/30 and 1/125 sec, and JPEG-only, no RAW). I could see using it occasionally, though I wish the resolution were higher. Also, in order to *enter* Silent mode, you have to be in Live View, and you have to pull up the mirror to do that, which makes the normal 'chunking' sound one time. An interesting note: in Silent mode, the exposure counter increments like normal (DSC_0101, 0102, etc.), but the EXIF value for 'Shutter Count' stays unchanged, just like it should. ** Silent mode is exclusive to the D4, and isn't on the D800.
Image quality: Beautiful... really crisp and sharp and smooth. The D700 was great too. For some reason this looks better. The number of pixels and the ISO are only slightly improved from the D700... the improvement to my image quality is dramatically better, more than the one or two stop improvement would suggest. Maybe Nikon's color processing software's improved, who knows what. But I didn't expect much improvement in image quality, and I got it.
ISO: It's a stop or two better than the D700. The ultra-high ISO's (like 200,000+ = H4.0) are there, but pretty silly. Even in bright sun, they're so full of noise so as to be useless. In low light they're even worse. (I guess you could use H4.0 if you were trying to monitor license plates of speeding vehicles under moonlight, or something crazy like that... but no normal photographic application is going to use that.) Up to ISO 10,000 or so, images are very clean. Focusing works really well in low-light, better than the D700 for sure. A nice change is that Auto ISO can now be easily turned on/off by holding ISO and rotating the front control knob -no more going into the menus.
One big change to exposure calculation is that the shutter speed can now be set based on the focal length. In the past, you'd set it (in the Auto ISO menu) to use a minimum of say 1/30 sec, which is great at 24 mm, but not what you want at 70 mm. OK, terrific -I was really stoked on this, since it makes a lot of sense and is more accurate in setting the shutter speed. But there's a huge problem in how it's implemented, in that it's blind to whether you're using a VR lens! So if I'm at 200 mm, it'll pick 1/400th sec for me. But I paid the big bucks for the VR lens so I don't have to shoot at 1/400th... I know I can handhold it just fine at 1/50th. The net effect here is that you'll end up shooting at a higher-than-necessary shutter speed, putting you into high-ISO territory, when you'd be otherwise safe to shoot much slower at low ISO. Alas -maybe Nikon will get this right with the D5. I ended up turning off this focal-length sensitivity setting, and telling it to shoot at 1/100th or faster regardless.
Ethernet connection: Plug in a cable, and the camera has a built-in web server, for doing tethered shooting. Not something I'll use much, but it seems to work. No additional software needed -just a web browser. I also used it for tethered shooting through Aperture straight out of the box, and it worked fine, no new drivers needed.
Auto white balance: as advertised, seems to work better than before. No big deal, but a nice bonus. One weirdness though is that the white balance seems to be less consistent than it was before. For instance, shooting outside in the shade, in the past I could set the right WB correction in Aperture and it'd be right-on for every shot in the series. No more -a good number of individual shots require more hand-tweaking now. This seems like a bug, like maybe the RAW files are getting tagged with the wrong color temp. It could well also be a bug in Aperture's handling of the D4 RAWs; I haven't tried it with Lightroom yet. A bonus with
Display: Better than before. Not really a big deal to me. Minor point: the display itself is polarized such that if you're wearing your polarized Ray Bans, the screen will look dark until you turn it to vertical mode. The D700 was polarized, but at a 45 degree angle, so it was still visible in horizontal mode. The display has a really viewing angle, meaning that if you hold it overhead in Live View, you can glance up at it and at least get *some* sense of how your framing is, even viewing the display nearly edge-on. It doesn't pivot of course, but it's definitely usable for a lot of overhead shots.
[** Update: Nikon replaced the main display for me when mine failed. The new one is different, and is viewable in landscape mode while wearing polarized shades. I doubt it was an intentional change on their part, but for me it worked out as a minor bonus!]
Viewfinder: The image looks a bit bigger and fuller than on the D700. Not that big a deal -I could always see my subject just fine before. Maybe a bit less squinting necessary now.
Extra configurability: Nikon now lets you reprogram even more of the buttons than the D700 allowed. I like one of the options in particular: I've set the Fn button (below the DoF preview button, next to the lens mount) to go to image review. Normally it takes two hands to hit the image-review button, but now I can do it quickly and using the right hand that's already on the camera anyhow. Just one more thing I miss now going back to the D700.
HDR, timelapse, multiple-exposures: they all work as advertised. Probably won't use them much.
Video: I'm not a video shooter but I tried it out outside under streetlights, where the video was super-clean. Inside with a night light it was a total failure at high ISO's -too much noise to see anything at all. Others know a lot more about video than me, so read their reviews instead.
Minor operational change: On the D700, the control wheels went dead right after taking a shot, requiring a half-press to wake up the metering system again, if you used the control wheels to select through images. On the D4, they stay live after the shutter press. Awesome. This was always a minor annoyance before, and I'm glad it's changed. It's hidden on an obscure setting within Custom F10.
Flash: There is none. Occasionally I used CLS for remote triggers on the D700 and you obviously can't do that any more. And sometimes I don't want to carry around the PocketWizards for just a snapshot flash-fill. Oh well -can't have it all. For what it's worth, the PocketWizards (TT5's) work perfectly, no problems at all. I called up the PW people about an unrelated issue and they confirmed to me (as of June 2012) that the PW's work great on the D4... not working yet on the D800/800E, they said.
Flash exposure: The EV+and the Flash EV are now separated. It use to be that lowering the camera EV would also lower the flash output (so dropping the background while keeping the subject lit would require two sync'd setting changes). No more. Nikon took after Canon here, good to see. This stuff works fine with the PW's. ** This Flash EV setting (custom e5) is exclusive to the D4. It's not on the D800.
Reviewing images: You can zoom out to see 72 images at a time, and use the joystick to cruise around these. But regardless of all of the image-processing power onboard, it's still frustratingly slow to scroll backward by 500 or 1000 images. There's apparently no in-camera buffering of the thumbnails -they're reloaded from the card every time, so it may still take you a few minutes of slow scrolling to find that cool shot from a few days ago that you want to show someone.
Manual: 456 frikkin' pages. I like camera manuals and this one's pretty well written. It's not literature but it explains the settings clearly enough.
Why not the D800? 50 MB images are too big for me, and I'm not going to be printing any banners or posters from my work anyhow. Almost everything I do goes online. Virtually any camera has enough resolution for me. I'm more interested in handling / ergonomics / ISO / dynamic range / speed, than resolution. If I was doing landscapes instead of people, I'd of course go for the D800 instead.
Is six thousand bucks too much to spend on a camera? Probably. But Nikon bodies remain in high demand, and used prices are high. I can likely sell this in a year or two for not much less than I paid for it. (My three-year-old D700 has only lost 1/3 of its value since it was new, or about a thousand dollars over three years.) Is having a camera like that worth a dollar or two a day to me? Absolutely.
P.S. I'll answer any questions below. And if you found this useful, feel free to click and tell me so!
[Update June 2013. 45,000 pics and one year later, it remains awesome. I only have a few frustrations and minor things to add:
o I wish the front buttons -Function and Preview -were more programmable, and I wish Nikon put a duplicate set you could reach in vertical mode.
o I prefer the analog buttons to change exposure mode on the D700, over the menu here.
o I don't use Live View very much -it's just so much slower than viewfinder mode that even though focus on a face in the corner very nicely, I can usually do it myself faster.
o Don't mind the weight at all. Feels great in the hand. I use an OpTech slider strap into an arca-swiss knockoff plate bolted into the bottom.
o I use 10 fps *all the time*. On safari, with kids, anything. It's wonderful.
o XQD card is great, though I wish there was a good way to take advantage of its speed to download to my older Mac, which only has a USB2 and not USB3.
o Nikon replaced the main logic board after I reported problems with the battery suddenly dying overnight. No problems since then.
o I wish the 51 focus points went further across the FOV -they're all clustered at the center.
o I'm not a big bird shooter but I have been amazed at how well the focus tracking will follow a bird who moves in & out of the frame, well away from the original focus point.
o Picture quality is just great. I get a ton of keepers, and when I don't, it's always my fault and not the camera's.
I managed to drop the camera -8 inches onto carpet with an 85/1.4 on -and it knocked the camera completely out of focus, and apparently knocked the main display loose so it flickered a lot. (So much for indestructibility of a pro body...) I sent it back to Nikon explaining the situation, and they were nice enough to fix it for free, which involved replacing the front bayonet mount. But the camera spent *nearly two months at Nikon* to get fixed! It was on "parts hold" for over a month, and when they returned it, they sent to to the wrong address to boot -an old address of mine.]
I have been using the D4 since the middle of March.
I am a professional sports photographer, so I am shooting two games a day during the week and sometimes four or five games over a weekend. I shoot a lot.
The D4 is an upgrade from my D3. I skipped the D3s, which I understand is a strong performer as well.
The D4 excels in a couple of very critical areas for me. The first is low level shooting. With the D4 I will no longer have to light grungy, dank, dark college gyms for basketball and swimming. The camera shoots very usable JPEGs at 10,000 ISO. This is remarkable. Very little noise, and if you are not shooting to make huge prints, the noise is hardly noticeable. I am sure the NEF files at that size are workable as well. I tend to stay away from the highest ISO ratings, only because I haven't needed them.
I cannot wait for fall night football games as the combination of high ISO and a 2.8 lens will be perfect.
The auto focus on this camera is amazing. The D3 was good. The D4 is great. The combination of this with a 200-400 AFS Zoom is just heaven. I've gotten more, better and great shots since I got this camera than in the whole season before it. My clients have noticed it and commented. Very impressive.
The white balance is much better than the older models. It gives you a true color and needs little tweaking. But if you need to tweak--it can do that too.
A lot of people will complain about the XQD card. I wont. It is fast. When you stick that card in, with the camera set at JPEG Fine, you have about 71 images in your "burst." Why you would ever use 71 images at once is beyond me, but they are there. For example, I shot a lacrosse championship game the other day. It went into two overtimes. I was able to shoot the action going into the final shot--and then shoot a stream of jubilation shots without missing a beat. That would have consumed all of the memory of the D3. Yes, the cards are expensive, but if you shoot raw, you are going to need the space.
The battery is new, having to meet new Japanese standards. But, I've gotten nearly 4,000 shots out of it before seeing the low battery light come on.
I am not used to the Video yet, so I cannot comment on it too much. I need to work out the bugs and give that a shot before the fall sports season starts. As my clients evolve in their media savvy, I am sure that an ability to shoot short video clips of their games will come in very handy. I need every competitive edge I can get these days.
All in all, this camera is everything a pro would want: High quality, innovative, fast, big, weather sealed, and backwards compatible with my equipment. The D3s will give it a run for low level light shooting, but if you are moving up from a D2 or D3, the bells and whistles make this worth every dime.
Buy Nikon D4 16.2 MP CMOS FX Digital SLR with Full 1080p HD Video (Body Only) Now
This will be an ongoing product review and something I will be updating as time goes on.
Ordering from Amazon -
As soon as I saw the news on nikonrumors.com that amazon had opened up the website for D4 orders, I placed mine. Thank you nikonrumors! This was January 6th. Since then, Amazon sent their usual emails informing me that the product was backordered and such. The only problem was amazon.com kept listing March 20th as the release date and March 21st as my "Estimated Shipping Date". Of course this didn't happen. In fact, at least for those that watch dpreview.com, this happened to all amazon.com D4 orders. The only bummer about the whole ordering experience was that the Amazon customer service was pretty much useless and uninformed. In the future, amazon should be quicker to correct their release dates. At least I got the camera..moving on...
Camera shipping from Amazon -
In the past I have been contacted by Amazon concierge to make sure my order was going smoothly. DIdn't happen with the D4. Not a big deal. Camera shipped next day UPS Saver on March 28 and arrived March 29th just past 5pm. Shipped was free due to the release date screw ups. Camera was boxed OK..and it did the job. I would have packed it better..but it arrived ok. Signature required.
D4 contents -
Good news here! The D4 came with the Sony XQS Card Reader and one 16 gig Sony XQS card. Very cool considering my 32 gig order is still pending. The Card reader and card were in a white envelope placed on top of the camera contents.
Additional contents -
1x EN-EL18 battery
MH-26 Battery charger (charges 2 batteries)
Instructions in both Spanish & English
Warranty Programs
Nikon ViewNX2
Strap
USB cable
Caps body, hotshot
Clips USB & body
UF1 & UF2 connectors
D4 Specs (and compared to the D3s) -
Weight 41.6 oz (D3s 43.7 oz) (Weight difference is noticeable!)
Pixels 16.2 million (D3s 12.1)
FPS 10/11 (D3s 9 FPS)
ISO 100 12,800 with lo-1 as 50, HI-4 as 204,800 (D3s 200 12,800, Lo-1 100, HI-3 102,400)
Video Full 1080 HD up to 30 FPS (D3s 720 at 24 FPS)
Monitor size 3.2 inches (D3s 3.0)
Viewfinder 100%
Integrated network port
D4 camera (first impressions) -
Ergonomics & Buttons WOW a lot has changed here. If you are coming from a D3s like me, all sorts of little changes mean some big adjustments. Here is my list of just what I've found so far -
Metering selector is gone!!! It used to be on the prism and adjusted with your right thumb. Not any more! It is now replacing the "Lock" button and press with your left hand and adjusted INSIDE the viewfinder.
Focus Mode Selector Gone too! The button to toggle between manual and autofocus is still there, but to toggle between C & S is now inside the view finder
Hand grip is different for both portrait and landscape photos including a small black piece of rubber attached near the camera bottom
The camera back Just looking at the back of the camera has sent me back to the full manual to learn this camera from the beginning. This includes changes to the thumbnails, picture control, and playback buttons and removal of the Area AF mode selector button.
Overall I like the changes, and love the ability to see changes inside the viewfinder. Might be a while to get my fingers to adapt. Overall it's good.
New D4 Network capabilities -
New to the D4, the camera can do FTP photo and movie uploads, control camera functions from a laptop using an optional software package (Caera Control Pro 2), and take pictures using an iPhone and remote browser. You can also control multiple cameras and do synchronized releases using the WT-5.
New D4 Chips & Batteries -
The battery and XQS memory chips are new to the D4. This means having to spend more money to buy new stuff as opposed to those that upgraded from the D3 to D3s. Sure it is good for the long term, but is a bit of a pain right now. If you shoot any other camera as well, then you will need to lug about two battery charges. If you don't have a backup camera, you will still need two sets of chips.
Shooting the D4 -
Quiet shutter option. There is a new shutter setting for a quiet shutter. This is on the command dial next to the high speed shutter release.
a bump up in FPS is subtle, but nice. I have yet to fully test this, but for shooting motor sports, I like it
Viewfinder is now 100% and nothing to dislike about this!
The virtual horizon is now inside the viewfinder! I constantly have to correct my pictures and love this feature. This is used by setting the Fn button in the menu to use the virtual horizon feature. The horizon only works when holding the camera normally not vertical. Still...great feature and I love it.
ISO -
The D4 takes pushing up the ISO beyond the D3s. But the difference is minimal as far as I can tell.
Overall (so far) D4 is every bit as good as the D3s and then some. The upgrades to the buttons are annoying, but I think will really be more useful in the field than the D3s version. The new chips and batteries are just progress in my mind. Not a big deal, just a little more money that has to be spent. I've only had this camera one day (and one night) and plan to add to this as I hit up some car races and concours...
Read Best Reviews of Nikon D4 16.2 MP CMOS FX Digital SLR with Full 1080p HD Video (Body Only) Here
Got one of the first ones out based on the glowing reviews and being an owner of several Nikon dSLR bodies; from the D70 up through the D3x/s cameras.
This takes the best of all of them and puts them in one body. The D4 relies heavily on the control dials, and most are intuitive. Spo changing settings can be done quickly.
Take the exceptional resolution of the D3x and add the superb low light performance of the D3s; then make it all faster and better, and you have a D4.
I was worried that I would feel "eh" about this camera, but my reaction is far from that. If you have some good Nikkor glass, or want to start at the pinnacle of digital photography for under $10,000, the D4 meets your needs with aplomb.
I may be poorer, but am delighted with this purchase.
note: I would have bought from Amazon, but they weren't expecting stock, so I went with a reliable authorized dealer. I like buying from Amazon though as they are very generous with returns should a problem exist; and even with $6,000 bodies, problems do crop up, even when new.
If you want your photos to be as good as they can be, and can afford the entry fee, this is the camera
If $6,000 is too much and speed is not crucial, the D800 or D800e probably do nicely at half the cost.
Remember this is a FX format, so no multiplying focal lengths by 1.5x. The sensor is the size of a 35mm negative.
Focusing is also faster on the D4. It's all good.
Delighted with this purchase
(D700, D3s, and D3x for sale. Used. Perfect condition)
Want Nikon D4 16.2 MP CMOS FX Digital SLR with Full 1080p HD Video (Body Only) Discount?
I'm a non-professional, photo enthusiast who shoots about 15K photos a year, mostly travel photography. I upgraded from a D300 mainly because of it's inability to capture my then 15 month old son who had starting walking. The D4 changed all that in the sense that I now have literally thousands of perfectly focused photos of my son crawling, climbing, jumping, running and yes falling; all in a 3 month time span. That to me is worth $6K and my wife agrees. The dynamic range and skin tone are excellent. On the D300, I would have to do a 5 shot bracket to have a nice HDR blend for landscape shooting. With the D4, the recovery in the shadows are so awesome especially with the newer Lightroom 4 software that I can often get away with one shot (-1 EV) and it'll look 90% as good as a 5 shot blend from the D300.
And of course, it's very durable. I have taken it to extreme humidity and heat and it has functioned beautiful. Never locked up at all so I haven't even needed to update the fireware. I'm currently in the 19K shutter actuation range and have recharged the batteries four times. Note though that I don't use video or Live View heavily.
Will it make you a better photographer? Likely not, I showed my wife pictures from our Montreal trip three years ago taken with the D300 and 18-200 VR1, and compared them to our recent Asia trip taken with the D4 and 24-70mm lens. She said my skill level has changed but the subject and content are pretty much similar.
In one word, the D4 is a MACHINE. Responsive. Accurate. Fast. From the D300 to the D4, it's like going from a 150 hp minivan to a 500 HP Porsche 911 turbo.
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We are first time parents and added a Summer Infant video baby monitor on our baby registry. We had to return it because of interference problems I detected with our wireless Internet. My wife and I work from home several days a week and unfortunately for me, the majority of my work calls are VOIP (voice over IP), which needs reliable Internet access and speeds.
