Nikon D4s: Bayer processing breakthru?

Started 4 months ago | Discussions thread
Scottelly
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Re: Maybe, but I don't think so.....
In reply to Lin Evans, 4 months ago

Lin Evans wrote:

Hi Tom,

I think you might want to actually look at actual resolution charts... Tech Radar has done a pretty thorough examination of this camera and it doesn't look like it does all that much better than my D7000 and not close to my D5300 in terms of linear resolution... Probably best to actually look at the resolution charts and not trust the TechRadar's numbers because at times it appears what they say and what the charts actually reveal are at odds. As an example, they rated the D4S at 28 and the SD1 at 24 in terms of resolution. Looking at the actual resolution charts you will scratch your head on these numbers. Bottom line is that the D4S does very well for a Bayer 16 megapixel sensor, but as I look at the resolution charts - it doesn't get that near the Merrill's.

http://www.techradar.com/us/reviews/cameras-and-camcorders/cameras/digital-slrs-hybrids/nikon-d4s-1212962/review

Best regards,

Lin

Tom Schum wrote:

This month's print edition of Shutterbug magazine (July 2014) has a review of the D4s, and on page 40 they say, "The resolution of 3280 lines per picture height given by the image sensor is transferred into images with a maximum of 3258 lines per picture height.... details and fine structures in these images look very crisp, but still natural." I've left out a couple sentences in which they speculate about how this might be done, and complain ever so slightly about some artifacts at hard contrast edges, but if you are interested the magazine is worth buying.

Typically, from what I have seen so far, it is very good to get even 75% of the sensor resolution out of a bayer array (60% more typically), and here we are at 99% with the D4s!

Once the DPR review comes out, it will be very interesting to compare image quality between the D4s (16 mp) and any Merrill (15mp). I'm guessing the D4s images will compare quite favorably.

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Tom Schum

Indeed, they are smoking crack, if they think the Nikon D5200 has the ability to capture finer detail than the Sigma SD1. They rate the D5200 higher than the SD1. lol

Check out the resolution test images from the D5200 (remember this is the 24 megapixel camera with an AA filter, not the new D5300, which has no AA filter, like the D7100).

http://www.techradar.com/us/reviews/cameras-and-camcorders/cameras/digital-slrs-hybrids/nikon-d5200-1110231/review/4#articleContent

Here's the resolution they claim for the D7100 (which scores the same as the D5200 . . . why? I can't fathom, maybe they were smoking crack when testing the D5200):

http://www.techradar.com/us/reviews/cameras-and-camcorders/cameras/digital-slrs-hybrids/nikon-d7100-1132593/review/4#articleContent

They also rate the D610 as a 28 at ISO 100, matching the D4s . . . so something seems fishy here. I don't trust their information AT ALL. I've seen too many comparisons between Nikon 24 megapixel full-frame photos and photos from the Sigma SD1 to believe that the Sigma doesn't have resolving power to at least match the 24 MP Nikons. They're claiming that the SD1 doesn't even resolve as high as a 24 MP APS-C Nikon with an AA filter.

They were DEFINITELY SMOKING CRACK, when they tested the SD1. They must have used a bad lens or got the images mixed up with images from another camera, like the SD15 or something.

http://www.techradar.com/us/reviews/cameras-and-camcorders/cameras/digital-slrs-hybrids/sigma-sd1-merrill-1088902/review/4#articleContent

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