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#11
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Grainy skye?
"Lorem Ipsum" skrev i en meddelelse ... "MXP" wrote in message ... I have worked a little with Gigabitfilm and here the grains in the skye is quite visible. On other areas the film grains are very small (4000 dpi scan). Is your scanner a _true_ 4000spi scanner? Even the Nikon (35mm) 4000spi scanner gives way to noise at high resolution. I am very happy with my scanner. It is a Coolscan 9000 and I use 8x multi sample to reduce noise from the scanner CCD. It gives very clean scan. The dark areas are very clean. It is no compare to the Epson 3200 flatbed i used before. It was pure waste of time. I think it will help a lot if I don't apply USM to the skye. I think I should handle the whole USM in Photoshop. Now I also apply a little USM during the scan...using the Nikon scanner software. Max |
#12
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Grainy skye?
"M Liddell" skrev i en meddelelse oups.com... I've never taken photographs on the Isle of Skye but I don't see why the sky should be any more grainy there compared to elsewhere. In fact many of the frames I have just scanned are from the Scottish island Skye. A programmed spelling error....... If you want finer grain don't scan your b&w film. It's that simple. It is only in the sky I have some problems......and now I will try out not using USM in the sky. MXP wrote: Why does the skye always look grainy on film? Even on high resolution BW film....... Is it the film which react this way......or does the skye just look like that? Max |
#13
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Grainy skye?
"MXP" wrote:
I use a Coolscan 9000 in 4000 dpi mode.[...] Gigabitfilm has so much information that I could use more than 4000 dpi. Help me understand: How much of the lens resolution are you really capturing? It seems unlikely that you get enough to justify 4000spi, and I even question whether the Coolscan can do better than 1600spi in reality. |
#14
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Grainy skye?
"MXP" wrote in message ... Why does the skye always look grainy on film? Even on high resolution BW film....... Not Tech-Pan. |
#15
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Grainy skye?
While we're on the "sky" subject. What's the best filter for darkening the
sky? I've used a red filter, but that's too costly for exposure. Does anyone have any suggestions? Thanks |
#17
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Grainy skye?
wrote:
While we're on the "sky" subject. What's the best filter for darkening the sky? I've used a red filter, but that's too costly for exposure. Does anyone have any suggestions? A pale yellow filter darkens it a little. A deep yellow filter darkens it much more. An orange filter will probably give as much darkening as you will ever need, and I agree that the red filter is simply too extreme for most uses. I use deep yellow or orange. The pale yellow is of no use to me because, if I want to darken the sky, I don't want the effect to be so subtle that no-one notices. I choose from deep yellow or orange depending on how dramatic I want the darkening to appear. |
#18
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Grainy skye?
"Lorem Ipsum" skrev i en meddelelse ... "MXP" wrote: I use a Coolscan 9000 in 4000 dpi mode.[...] Gigabitfilm has so much information that I could use more than 4000 dpi. Help me understand: How much of the lens resolution are you really capturing? It seems unlikely that you get enough to justify 4000spi, and I even question whether the Coolscan can do better than 1600spi in reality. Apart from the sky then everything looks very sharp and detailed when I scan Gigabitfilm in 4000 dpi mode. But 4000 dpi reduces the max. resolution to about 60 lp/mm. Gigabitfilm can do a bit more. It is the lens which limit the max. resolution you can get. So maybe I have 100 lp/mm in some of my pictures. I can see I have about 60 lp/mm in the scanned details. There are some details where you can count approx. how many lp/mm you have (e.g. written letters in signs far away etc). For scanning Velvia I find 4000 dpi optimal. It is very little you can get out if it was scanned with e.g. a 8000 dpi scanner from Imacon. I often use a microscope to check how much details I get out from the scans. Max |
#19
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Grainy skye?
The Gigabitfilm is very unsensitive in the red area so +4 stops has to be
applied so it will be about +6 stops loss of light. I know this is true because I have many underexposed shots before I found out (it is written on the film) and I also checked with the person which has developed the Gigabitfilm developer. He suggested just to use a light yellow filter and then use larger appertures than normal to get most lp/mm down on the film. skrev i en meddelelse ... While we're on the "sky" subject. What's the best filter for darkening the sky? I've used a red filter, but that's too costly for exposure. Does anyone have any suggestions? Thanks |
#20
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Grainy skye?
skrev i en meddelelse ... "MXP" wrote in message ... Why does the skye always look grainy on film? Even on high resolution BW film....... Not Tech-Pan. I have never tried Tech-Pan. Is it easy to work with? Max |
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