I have red somewhere that Genuine Fractals have no advantage now over Photoshop in enlarging images. About the step by step approach, I don't know if it really do better. Lately, I used LR5 to enlarge a small portion (20%) of an old RAW file that was created with Canon G5 I printed it on a A2 page ( about 38x38 cm) it is a great print! A little bit soft but this give this specific image a sense of an oil painting. From this same file I also printed a greater portion (40%) (38x52 cm) that came out just great without this softness. Of course this is not a 160 cm print but was done from "not so good" camera in today terms. As much as I know, If you can deliver the printer an image with a minimum of 120 dpi you can get a proper print. (Of course 300 or 360 is much better). BTW - I printed another file (5D origin) twice, one 360 dpi and another 720. By naked eye you can't find the difference but with a magnifying glass there is. Lr5 did the enlargement of the resolution. Hope this help
Pini Vollach
Sent from PiniPad It has been my experience that Fractals or ‘Perfect Resize’ as it has been rebranded is the best tool. But the 10% stuff works too.
Scott Kelby, in one of his early photoshop books, suggested that one could blow up photos by a few percentage points at a time. I tried it with a jpeg file and it worked. For example, increasing the size by 5 percent fifteen times will approximately double the size of the image (2.08.) I don't l know if it will work for you, but it might be worth trying. You can solve the equation (1.0x)^n = y, for n, where x is the percentage increase for each iteration, y is the final size and n is the number of iterations.
Roger
Sent from my iPad
On Aug 22, 2014, at 8:05 PM, "James Schenken" <jds@xxxxxxxxxxxxxxx> wrote:
Oops, I calculated at 3000 pixels on the long dimension rather than 4000.
Please make adjustments accordingly.
Sorry about that.
CPAP Therapy is a way to live.
On Aug 22, 2014, at 8:44 PM, James Schenken <jds@xxxxxxxxxxxxxxx> wrote:
The problem appears to be that the image magnification is about 44 times.
The image resolution is about 83 pixels per millimeter.
So, what you get if everything is perfect is 2 pixels per millimeter or about 50 dpi.
That's OK if everyone is going to be 15 feet away from the image or so.
Any chance the museum would go for a black and white half tone for a background?
CPAP Therapy is a way to live.
Art Faul
The Artist Formerly Known as Prints ------ Camera Works - The Washington Post
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