Panasonic GH4 Autofocus Speed Found To Be Close to the Nikon D4s

Chris Gampat The Phoblographer Panasonic GH4 announcement photos (1 of 5)

As mirrorless cameras have improved over the years, so to has their autofocusing. Many companies claim that they have the world’s fastest autofocusing capabilities. For years, we’ve stated that Olympus is king in terms of speed but the new Sony A6000 has also really impressed us lately. But the Camera Store decided to put four of the top mirrorless cameras to the test on a dirt bike range. Plus, they also brought along the Nikon D4s.

The cameras put to the test were the Sony A6000, Olympus OMD EM1, Panasonic GH4 and the Fujifilm XT-1 as well as the Nikon D4s. They were all tested with comparable focal lengths at f4. In the end, they conclude that the D4s is still king but that the GH4 is close.

There are problems with the test though:

– At f4, more is in focusing with a Micro Four Thirds sensor than with an APS-C or full frame sensor. They were testing the lenses out at f4

– Panasonic lenses don’t focus as snappily on Olympus cameras and vice versa. This could help account for the findings with the OMD EM1.

– The Sony A6000 was tested with an Alpha adapted lens; not a native E-mount

– The D4s is significantly more expensive.

Despite these flaws in the non-scientific test, it’s still very much worth watching for the insight. Check it out below after the jump. Be also sure to check out our reviews of the Sony A6000, Fujifilm XT1 and the Olympus OMD EM1.

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Is Your D4s Having Trouble with Your Lexar CF Card? Nikon Just Released a Service Advisory


Apparently, the Nikon D4s is having difficulties working together with some Lexar Pro CF cards. Nikon Rumors reported about this a couple of days ago, and now Nikon has released an official service advisory on the issue. The cards causing problems are from two batches with specific serial numbers, and in order to find out whether your card is affected, all you have to do is look at the serial number on the bottom of the card.

The two batches in question have the sequences 8BAFBE and 8DCB61 at the end of their serial number. According to Nikons service advisory, only 400x and 1000x speed cards are affected, although in Nikon Rumor’s original facebook post that we linked to above, a 600x card is also mentioned. If you’re using a Nikon D4s with a Lexar Pro CF card, best take a look if it’s from one of the batches, and if it is, have it replace anyway, even if it’s not causing you any trouble (yet.) Better safe than sorry, and all the more when your income depends on it.

Via dpreview

DxOMark Says Nikon D4s Trumps Canon 1D X, Head-to-Head With D4 and Df


DxOMark has analyzed the sensor of the new Nikon D4s, and the results aren’t really surprising. Since the camera is more of an update to the D4 rather than a full-fledged successor, we didn’t really expect the D4s to outperform the D4 by any significant margin. And indeed, this is what DxOMark’s measurements confirm. While the D4s has slightly better overall performance at ISOs 3200 and up, the D4 performs just as well if not a slight notch better at lower ISOs when it comes to dynamic range, tonal range and color sensitivity. The same is true for the Nikon Df.

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Nikon Announces the New D4s: Same as the D4, But Faster


Yup, it’s finally here. After Nikon’s first announcement of the camera and with Adobe knowing what the camera would be like, the company is finally letting the cat out of the bag. The Nikon D4s is what the D3s was to the D3–just a slight speed bump.

The company is once again using a 16.2MP full frame sensor in the camera, but it houses an EXPEED 4 processor that they’re claiming is 30% faster and also allows for the recording for 1080p 60p video (plus 24 and 30p). The processor also lets the camera go to ISO 25,600 with 12 bit uncompressed RAW output. Other features include face priority analysis being able to be turned on or off, 11fps shooting, six possible preset white balances and five AF sensors used as a group.

The D4s also has XQD and CF card format support, the ability to change the size of the focusing point in Live View mode, and a timelapse mode with up to 9,999 images.

When it becomes available for pre-order, you’ll be able to snag yours for $6,496.95. Be sure to check Adorama for availability. More images of the camera are after the jump.

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Adobe Camera Raw 8.4 RC Has Nikon D4s Support

Chris Gampat The Phoblographer CES 2014 Nikon D4s images (1 of 5)ISO 16001-40 sec at f - 3.5

Very recently, Adobe announced their latest version of the Camera Raw software with the version 8.4 Release Candidate. But what folks seem to not notice is that the company already has support for the Nikon D4s–a camera that isn’t even out yet and that specs haven’t been announced for yet. Traditionally, Adobe hasn’t done this before but the company somehow or another seems to know just what the Nikon D4s will have in terms of the sensor, RAW file capabilities, etc.

The entire world is waiting to see what actually comes about. Last week, Petapixel reported on Adorama’s momentary listing of the camera. But they also stated that the listing doesn’t seem to be in line with the rumors.

Besides no more support for older software though, take a look at the rest of the new features to the Camera Raw Converter.

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Here are Photos of the Nikon D4s

Chris Gampat The Phoblographer CES 2014 Nikon D4s images (2 of 5)ISO 16001-40 sec at f - 3.5

At CES 2014, we were able to stop by Nikon’s booth and take a quick look at the upcoming D4s. Unfortunately, it’s behind glass–so not only was it tough to take the clear and crisp images that we usually are able to snag, but we couldn’t get any time to fondle it and cry about why we’re so poor and can’t afford one.

Other photos are after the jump.

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