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12-31-2010, 06:05 AM   #16
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My take based on the filenames:

#1 645D
#2 mis-focused 645N
#3 correct 645N

All of them cropped.

12-31-2010, 07:25 AM   #17
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QuoteOriginally posted by joakimfors Quote
My take based on the filenames:

#1 645D
#2 mis-focused 645N
#3 correct 645N

All of them cropped.
You are correct joakimfors.
12-31-2010, 07:31 AM   #18
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QuoteOriginally posted by Thomas Quote
You are correct joakimfors.
that was my take as well
thanks for the clarification
12-31-2010, 07:49 AM   #19
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Again I apologize for the confusion caused by incomplete data and my haste to post the results. When I received the 645D, I performed a number of tests vs. the 645N and 67II. All exposures were inside (thanks to the weather) on a heavy Gitzo using the timer on each camera. Camera shake is not a factor for the 645N or 645D; given the slow shutter speeds it could be for the 67II, despite my best efforts. The film was scanned in a glass carrier on a Nikon 9000. I’ve been using the scanner for 5 years and the 67II is my main camera, so I’ve much experience getting scans from the Nikon and I see nothing unusual in the film or the scan. The transparency looks razor sharp with a 10x loupe. Included in this post is the full image of the plant used in the first post. I used the plant in part to check focus. In the crop, camera-plant distance slopes from left to right, i.e. the left side is closer to the camera and the right is further away. Since the right and left sides are clearly more OOF than the center, the plane of focus must pass somewhere through the center of the image. I have also included the crop after the PS I would normally perform, in this case, high pass and smart sharpen along with curves.
I have also included the full image of another test (magazine) with a crop from the 645D, and two crops from the 645N, one as it appears out of ACR, the other after PS work. None of the 645D images has had any PS work. In this case, focus could be an issue, but I don’t think so. Remember when photography used to be simple? Images in order: full image of plant (crop is from center, slightly high left), 645N crop sharpened, full image of magazine, crop 645D, crop 645N. A PS version of the 645N will follow in another post (5 image max)

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Last edited by Thomas; 12-31-2010 at 10:01 PM.
12-31-2010, 07:51 AM   #20
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645N crop. High pass, smart sharpen, curves.
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12-31-2010, 08:15 AM   #21
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Now it makes sense

The crop of the bar code on the 645D has quite a bit of contrast.
The crop of the 645N once removed scanner softness seems to show more detail.
But I am not at my own computer so the rendering on this monitor might be out.

Cheers,

Luc
12-31-2010, 05:20 PM   #22
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QuoteOriginally posted by lbenac Quote
Now it makes sense
The crop of the 645N once removed scanner softness seems to show more detail.
Luc
But most of the "details" you see are from modulation of randomly distributed film grain. You can add real or simulated grain/noise to the 645D images to see the same effects. The digital capture was much sharper but since the coherently patterned pixels interact with the patterned lines predictably you get a feeling of something is artificial.

I am not saying it is bad though -- and it certainly helps to add a degree of "naturalness" to the images -- I routinely add simulated "film grain" to my files especially when I print big. It dithers out low contrast fine details and also create the illusion of "details" that are actually not there. Helps the reception of overall sharpness tremendously.
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