The Joy of Pixel Density

Started Jul 13, 2008 | Discussions thread
Graystar Veteran Member • Posts: 8,373
Re: The Joy of Pixel Density

John Sheehy wrote:

8 hours, and only one reply. The silence is deafening.

Sorry...this is the first time I see it.

John Sheehy wrote:

Well, here is a preliminary example of what I have been promising for
a little while; a direct comparison of pixel density with the same
subject, same distance, same f-stop, same exposure time, same focal
length. The cameras are the Canon 400D with 5.7 micron pixels, and
the Panasonic FZ50 with 1.97 micron pixels. The larger crops are at
the scale of 100% pixel view of the FZ50, and the smaller ones, at
the scale of 100% pixel view of the 400D.

I swear I always have such a hard time figuring out what you're saying! Did the same image fall on the same amount of area on both sensors? If focal length and distance are the same then it should, but you're showing two images that are the same size. The original images are not the same resolution. So when you show two images that are the same resolution and say that they're straight from the RAW...that confuses me. The FZ50 should have a higher resolution. Did you resize?

And what is this "pushing" that you're doing? Can't you display the demosaiced RAW without messing with the EC?

I just want two images...from the same sensor area...resize the higher resolution to match the lower resolution...of a scene with a wide dynamic range. That's it. Oh...maybe some clear labeling. And no pushing. Is that too much to ask?

Oh...and DNGs posted somewhere would also be nice

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ck3
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