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[OM] Re: [photo] Lost at Firenze

Subject: [OM] Re: [photo] Lost at Firenze
From: Fernando Gonzalez Gentile <fgnzalez@xxxxxxxxxxxxx>
Date: Mon, 17 Dec 2007 02:23:05 -0300
Cc: Moose <olymoose@xxxxxxxxx>
Much better now, Moose:

1- Nikon Scan 4.x.x can only set white point using the eyedropper, not 
numerically I fear. I decided not to set a white point, but to reduce 
Luminosity just a little, and light blue sky showed up.
2- Main issue to preserve red-orange-yellow while getting the green 
bronze, was a better gray point: found one somewhere around the 
rectangular windows of the Cathedral wall.
3- 1x and 16x were as sharp, and 16x histogram looked far better, mainly 
in the red.
4- Nevertheless, the Ektachrome was still better in the reds and even 
slightly more magenta which resulted in a more natural Italian look.
Also, noticeable sharper (very obviously at the red tiles of the Dome 
roof) despite an USM of 50 pixel radius at 20% in Nikon Scan 4.x.x.
Don't know how to understand the pale red hue: gained green in the 
bronze but lost red in the tiles, just because of a different gray point.
Seems that I have no choice but to work this around in PS. .... when I 
have the time, it's too late now and must be at work tomorrow rather 
early in the morning.

Muchas gracias,

Fernando.

Moose wrote:
> Fernando Gonzalez Gentile wrote:
>> If the chrome is sharp, something has gone wrong either in the scanning 
>> process or the PS processing.
>>     
>> ......
>>     
>>>> I did add a little blue to the sky, which is way burned out in the 16 bit 
>>>> .tiff but faintly light blue in the Ektachrome .... fear this 4000ED is 
>>>> not working as it should.
>>>>       
>>>>         
>>> Probably not the scanner. More likely the software and operator. The 
>>> loss of subtle sky color sounds like the White Point is set wrong, 
>>> resulting in unwanted clipping.
>>>     
>>>       
>> wellllllllllllll, yes: white point was somewhere in the sky area, where 
>> I found level was the highest. Right now I'm learning that I should have 
>> selected a *white* pixel - difficult task I guess.
>>   
>>     
> I don't know what software you are using. Is there a way to set it 
> numerically, rather than with a dropper?
>   
>>> On the other hand, the shadows could use some judicious combination of 
>>> multiple scanner passes, increased black point and/or noise reduction.
>>>   
>>>     
>>>       
>> Increased black point was done, scanner passes were the most it can do,
>>     
> Try a single pass scan and look at it at 100% to make sure it isn't 
> multi-scanning that's causing the odd multiple image looking focus.
>   
>>  
>> noise reduction ... what's that?
>>   
>>     
> :-)
>
> Moose
>   



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