[Spodeworld]

The Nikon D7200 has impressive sensor specs....putting pressure on a K3 successor.

Nikon D7200 Crowned the New King of APS-C by DxOMark

[PentaxJax]

DxOMark would have rated a 3D printed body just as high, if it had Nikon on the front. :-)

[crewl1]

Hopefully this one won't spit oil or let in extraneous light.

[kenspo]

Wont be king for very long.

[jatrax]

Wont be king for very long.

Hmmm..... What sensor is being used in the D7200 does anyone know?

[rrstuff]

The Nikon D7200 has impressive sensor specs....putting pressure on a K3 successor.

Nikon D7200 Crowned the New King of APS-C by DxOMark

Those are very small differences. I think they would be indiscernible in the pictures.

DXOMark has a nice methodical approach, but they have three small issues. First is lack of inclusion of metamerism index in the score* and the second is lack of measuring the resolution. The first is important because of overall color quality and you can sacrifice it to get a bit better iso performance. The second could account for noise filtering in RAWs, which, when applied, would yield a higher ISO score, but not better image quality. Third, is the grain size. Classic example of how it mattered would be original four-thirds cameras. Their sensors had low noise, but larger grain and the pictures looked terrible at high iso, despite having relatively low noise, mathematically speaking. Old nikons had quite a bit of noise, but they had small grain and people liked the way images looked.

In short, I don't think these differences matter much for the way images look.

*You can look it up in measurements though.

[kenspo]

Hmmm..... What sensor is being used in the D7200 does anyone know?

I would guess Sony's newest one. Most cameras, in any brand, uses the same sensors. The difference will be in the tweaking each brand do them self. Hardware, software, firmware etc.

[jpzk]

Wont be king for very long.

Coming from you kenspo, I would assume that what you are saying this is encouraging for us ?

[Rondec]

Strange.

Biggest difference is that base iso on the 7200 is measured at iso 70 while the K3 has a base iso of 100 (well, 94). SNR is exactly the same between the two sensors. The Dynamic range looks good on the 7200, but there is typical Nikon fudging of iso values. Iso 1600 on the 7200 is measured at 1100, while it is measured at 1488 on the K3.

The curves are definitely separated with regard to dynamic range, but this fudging of iso makes it look bigger than it really is.

[tvdtvdtvd]

I know DxO scores sell cameras, at least with the stat obsessed. But has anyone every looked at a photograph
and thought, "I like that picture. It looks like it came from a camera with a DxO score of 88."?

[kenspo]

Coming from you kenspo, I would assume that what you are saying this is encouraging for us ?

Yes

[rrstuff]

I know DxO scores sell cameras, at least with the stat obsessed. But has anyone every looked at a photograph
and thought, "I like that picture. It looks like it came from a camera with a DxO score of 88."?

There is a site that does blind testing, where people try to guess what camera it came from. As you can imagine, people rarely can tell the difference for 4/3rds sensors or larger. It's a binomial comparison, so 50% would be considered completely random. The 38% accuracy in 4/3rds/APS-C comparison suggests, that 4/3rds is probably closer to APS-C than people imagine it should be.

GuessTheFormat

GuessTheFormat: Statistics

[biz-engineer]

The Nikon D7200 has impressive sensor specs....putting pressure on a K3 successor.

Not really. If you compare the D7200 with K-3 at the same actual ISO , you'll realize that the D7200 is a just a tiny bit better. The trick of Nikon is the use a lower actual ISO versus displayed ISO, which means that for the same settings, the shutter speed will be slower by a half stop on the D7200 compared to the K-3. Basically, the K-5 have the same max noise perf. as the D7200 sensor (on print).

[jatrax]

I know DxO scores sell cameras, at least with the stat obsessed. But has anyone every looked at a photograph and thought, "I like that picture. It looks like it came from a camera with a DxO score of 88."?

ROFLMAO Most people won't be able to tell the difference between an image from a Pentax k100d and a Nikon D810.

[rrstuff]

Not really. If you compare the D7200 with K-3 at the same actual ISO , you'll realize that the D7200 is a just a tiny bit better. The trick of Nikon is the use a lower actual ISO versus displayed ISO, which means that for the same settings, the shutter speed will be slower by a half stop on the D7200 compared to the K-3.

Actually, DXOmark corrects for that. They normalize their sensitivity, this can be seen in the full iso graphs in 'measurements'. Otherwise, the OM-D E-M5 score would be equal to APS-C - same sensor technology as Nikon and Pentax, while having 1-full stop iso inflation.