Tag Archives: megapixels

$700 less: Nikon D7500 is specced-down D500

12 Apr

For 700 Dollars less than a D500, Nikon has introduced the D7500 without the advanced autofocus module and additional card slot. However, microfocus adjustment using Live View is available. The maximum continuous shooting rate is 8 frames per second, and buffer depth is a reported 50 raw files, with no information on RAW+ buffer depth or buffer clearing times. (A fast-clearing buffer is better than a deep one!)

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The Nikon D7500 (Nikon promotional image)

At 20 megapixels, the D7500’s resolution is down from the D7200’s 24 megapixels, and instead matches the D500. Nikon claims that weather sealing has been improved. The body is also a little less beefy than the D500, and very similar in size to the D7200, although small design changes have been made:

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Size comparison with related models

To get an impression of the image quality to be expected, take a look at my previous articles:

Devil’s advocate on Pentax: Two hypotheses

13 Nov
  1. The release of the K-3 will primarily drive sales of the K-5 II, K-5 IIs and K-50/500, rather than the K-3 itself. The adjustable AA filter without bracketing is more of a tech demo, and debate continues on whether the 24 megapixel filter is competitive with the 16MP one. Furthermore, iterative reshuffling of buttons and control levers continues to be a source of complaint. Night and indoor shooters will still want the K-3 for its ability to control white balance for several light sources separately, of which few real tests have been seen so far.
  2. Ricoh is content with occasional full frame rumour. They will continue releasing test cameras to select photographers, but never release the final product. This is enough to keep people buying APS-C cameras, which is the format Ricoh really believes in, and allows keeping the lens offerings tight and light, rather than branching into light and heavy like CaNikon.

The more megapixels, …

6 Oct

…the sharper your lens has to be.

…the more accurate your focus has to be.

…the faster your shutter has to be OR

…the better your image stabilisation has to be (IBIS, OIS or tripod).

…the bigger your hard disk has to be.

…the faster your computer has to be.

Nikon releases two cameras, Canon, Pentax and Olympus users panic, and Sony chuckles

25 Feb

People probably thought Nikon wasn’t serious when it relased the D3200 – after all, noise levels for the 24 megapixel sensor were laughable, especially at higher ISO settings. The chickens also did not stir when the D5200 came out – same megapixels, better signal/noise ratio. Apparently, the writing was not on the wall until the announcement of the D7100. OH NO! You don’t mean they can use that same sensor in a sturdier, pro-looking body, OH MY. OH MY GAWD, WE ARE ALL GOINGS TO THE GALLOWS NOW. That pretty much sums up the response from the Canon (yup), Olympus, and Pentax camps. Meanwhile, Sigma kept playing with its own toys in a corner, blissfully unaware that this other Bayerverse existed.

It’s clear that Sony can send the rest of the bunch scurrying at its whim. Release a new sensor, give it to one of the other camera manufacturers and watch how the rest get jealous like little children. That little bit of control must feel good for Sony after having boldly switched its own entire line-up to what it calls SLT – a technology whose time seems to lie in the distant future, if at all ever.

But it remains to be seen how many customers can actually fork out enough money to pay for lenses that actually take advantage of this new-found resolving power on APS-C. Already, one photography magazine has fallen into the trap of comparing the D600 (35mm format) with the D5200 (APS-C) of the same resolution without ensuring that the lens(es) used exceeded the resolving power of each sensor, concluding that the D600 retains more detail, especially at high ISO. If the lenses used had been explicitly stated, a critical interpretation of the outcome might be possible. As it stands, the test was useless.

Window of opportunity for Canon 7D, Nikon D7000 is closing

11 Feb

While DxOMark tests still give the sensor of the 7D a slight edge over the cheaper and more basic 650D, a recent test in ColorFoto (3/2013) shows the RAW files of the 650D to resolve more fine detail.

Similarly, the Nikon D5100 outperformed the D7000, albeit by a much smaller margin. It’s to be expected, though, that the currently arriving D5200 will obsolete the D7000 more conclusively. This is already reflected even in DxOMark scores, which is remarkable not only because DxOMark does not take into account the much higher resolution of the new Toshiba-made sensor in the D5200, but also because DxOMark reviews are usually delayed by many months after the introduction of new camera models (not to mention that some models are seemingly never tested at all).

What’s clear is that those who care about image quality should focus on buying recently released camera bodies rather than be fixated on premium models. For camera manufacturers, the implication seems to be that camera design should be made more modular and synchronised, so that bottom and top APS-C lines can be updated simultaneously, which could stop newly released cheaper cameras from cannibalising sales of fully featured bodies. Pentax for several years has avoided any significant design alterations of its flagship APS-C body, which hints at just such a modular strategy.