Archive for the ‘Produs’ Category
August 31st, 2010 | 
Author: When your soul is broken you need a mechanic.
In most cases you are the one who should play this role.
Posted in 
Source http://photoshopnews.com/2008/02/19/most-important-date-in-digital-imaging-history/ .
19.02.1990 The release date of Adobe Photoshop 1.0
Photoshop 1.0
In the grand scheme of human history, February 19th may not go down as a momentous occasion, but it’s recently come to light that at least in the world of digital imaging, today signifies a more important date than most anybody realized. And that folks, is the delicious irony.
More infos on article’s page:
http://photoshopnews.com/2008/02/19/most-important-date-in-digital-imaging-history/ .
Source blog “The Mansurovs”http://mansurovs.com/nikon-d700-d3-vs-d3s-high-iso-noise-comparison
The first test is at ISO 800. The image on the left is Nikon D700 and the image on the right is Nikon D3s (click to enlarge). Both are extremely good at ISO 800, but Nikon D3s is a little cleaner in the background areas.
At ISO 1,600, the Nikon D3s starts to shine, showing a significantly less amount of noise in the background.
The same thing at ISO 3,200 and this time Nikon D3s is showing a 1-1.5 stops of improvement over Nikon D700.
At ISO 6,400 we are already seeing some loss of details on the Nikon D700, while Nikon D3s is still super sharp, with a slight amount of noise.
ISO 12,800 looks pretty darn good on the Nikon D3s, while the image from Nikon D700 is almost unusable with color blobs appearing in random spots.
As expected, the image is unusable at ISO 25,600 on the Nikon D700, while Nikon D3s is still kicking butt at ISO 25,600 with very few, barely noticeable color spots.
As you can clearly see from the above images, the Nikon D3s outperforms D700/D3 by approximately 1.5 stops. I cannot say that the difference is full two stops, because the Nikon D3s has a little more noise/grain at two stops than Nikon D700. For example, here is what we see when Nikon D700 @ ISO 3,200 is compared against Nikon D3s @ ISO 12,800:
Sharpness-wise both images are very similar, but when you look at noise levels, Nikon D700 @ ISO 3200 is a tad better than Nikon D3s @ ISO 12,800, which is already remarkable. The ISO on Nikon D3s can also be “boosted” to ISO 51,200 and 102,400 for those, who need to be able to shoot in extremely dim environments or want to get faster shutter speeds. Let’s take a look at those crazy ISOs:
ISO 51,200 is not bad at all and is much more usable when compared to Nikon D700′s ISO 25,600. I wouldn’t use ISO 102,400 though, because it is not only too grainy, but there seem to be issues with blue and red color blobs getting added to the picture (nearly impossible to deal with in post-production).
You can the conclusion on the blog “The Mansurovs”http://mansurovs.com/nikon-d700-d3-vs-d3s-high-iso-noise-comparison
In fotografie este un Praktica L2, un aparat german, cu un obiectiv de 50mm/f1.8 si un 200mm/f.2.8 .
Inainte de a trage 2-300 de cadre, inainte de a retusha in Photoshop, aparatele foto pe film erau la putere. Iar cand le scoteai pe hartie… era fabulos.
