Kattintson ide a magyar változatért
10×15 cm prints
Although the viewing distance of 10×15 cm images is smaller, than that of an A4 sized or larger print, these prints don't need more than 2-3 million pixels of data. At 300 dpi we need a 1770×1180 pixel (keeping a 3:2 ratio) image to cover that paper size. This is roughly 2 megapixel.Unfortunately digital cameras use a so called Bayer mosaic filter system to produce color image from a monochrome sensor, so an image coming from a 2 megapixel camera will seem less sharp, than a downsized and sharpened 4 megapixel image.
Will the 10-14 megapixel camera have any advantage over the 3-4 megapixel models in such smal prints? Or it is an overkill to use such high resolutions for 10×15 cm prints?
To get the answer we downsized the images using IrfanView to 3 megapixel, than applied a sharpening (value 6) in the same software.
The G1 with it's 3 megapixel native resolution has a disadvantage here, but this happens all the time when prints are made from that resolution images.
3 Mpixelre leméretezett 1. kivágás
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
3 Mpixelre leméretezett 2. kivágás
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
3 Mpixelre leméretezett 2. kivágás
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
3 Mpixelre leméretezett 1. kivágás
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
- ISO80
- ISO80 RAW
- ISO100
- ISO100 RAW
- ISO200
- ISO200 RAW
- ISO400
- ISO400 RAW
- ISO800
- ISO800 RAW
- ISO1600
- ISO1600 RAW
Let's see the image noise. We have seen that higher resolution has obvious advantages at larger prints, but what can we expect from 10×15 cm prints?
The situation is very similar. The higher the resolution, the smaller the noise spots will be on the image. The case becomes a bit confusing at the G7, since a new noise filtering system steps in in that model to achieve homogenous, noise free areas. This allows us to print perfect images even from images taken at ISO 400 sensitivity.
We shouldn't forget, that we are again looking at an enlarged area. The 400 pixels wide area we see above will be about 3 cm on the printed image.
So if this print size is the target, resolutions above 7-10 megapixel have no visible advantage over lower resolution images.
- Intro
- Native resolution
- A3 prints (18 megapixels)
- 10×15 cm prints
- Subjective evaluation
- Conclusion
