Digital BW, The Print

I’ll do that.  Thanks.

Harry


On 4/21/07 5:03 PM, "Tyler Boley" <tyler@...> wrote:

>  
>  
>  
> 
> If you still want to check out the scanner's channel performance and
> possible effects of base color scan RGB and carefully look at each
> channel. You can always throw 2 away if one stands out, or even use
> the mixer to use 2 if one is a dog.
> Tyler
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com
> <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> , Harry Lockwood
> <hflockwood@...> wrote:
>> >
>> > Thanks, Tyler, for the quick response.
>> > 
>> > I can only choose RGB or grayscale, not individual channels.  And yes, I
>> > stay with 16 bit throughout, until I print.  I¹ll continue to fool
> with it.
>> > 
>> > 
>> > Harry
>> > 
>> > 
>> > 
>> > On 4/21/07 3:15 PM, "Tyler Boley" <tyler@...> wrote:
>> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com
>> <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com>
>> > <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com> , "hlockwood"
>>> > > <hlockwood@> wrote:
>>> > > ...
>>>>> > >> > I'm shooting a couple of test rolls of XP2 Super...
>>> > > 
>>> > > I use that film regularly for medium format and have for many years,
>>> > > it scans well. With large prints, people are amazed to learn it's
> not 4x5.
>>> > > 
>>>>> > >> > 
>>>>> > >> > Rather than scan as grayscale, I scanned (Nikon 4000ED) in RGB,
> then
>>> > > converted to Lab
>>>>> > >> > and discarded the color channels.  I did this to get rid of any
>>> > > effects of the background
>>>>> > >> > mask.
>>> > > 
>>> > > I'm not sure this procedure is giving you any advantage when it comes
>>> > > to the mask. It contains a limited amount of color, so really you're
>>> > > just going to have to remove it's density with an end point adjustment
>>> > > at some point along the way, whether in the scanner software, or
>>> > > Photoshop, intentionally or due some some unseen "auto" function.
>>> > > 
>>> > > Scanners are native RGB, so even with a grayscale scan it's just
>>> > > converting on the fly for you. It's been a long time since I used a
>>> > > Nikon, is there a preference setting allowing you to select one of the
>>> > > channels for gray, R, G, or B? If so, do an identical test scan of the
>>> > > same neg using each color, with no auto adjustments. In PS look at the
>>> > > histograms and see which one has filled it out the most, icluding that
>>> > > low ened for the base density. Then look at 100%, check noise and
>>> > > sharpness.
>>> > > If one channel outperforms the others, go with that.
>>> > > 
>>>>> > >> >  This resulted in an image that required gentler tonal corrections
>>> > > than if I had
>>>>> > >> > scanned in grayscale.
>>> > > 
>>> > > That may very well be. And if no other method shows any improvement,
>>> > > you might as well stay with it.
>>> > > 
>>> > > ...
>>>>> > >> > So, have I stumbled onto a well-known procedure, or does it make
>>> > > little or no difference
>>>>> > >> > which route one takes in the scanning step.
>>> > > 
>>> > > It's known, and some recommend it. Anything can make a difference, and
>>> > >  these things are well worth exploring. We called it craft in the
>>> > > olden days of yore and lore.
>>> > > I just try to stay away from a lot of mode conversions, for B&W you'll
>>> > > be doing a lot of tonal editing in PS anyway, so combined the loss can
>>> > > add up. However you do it, I highly recomend scanning and staying in
>>> > > high bit for those steps, and as long as possible down the line when
>>> > > working on single channel files.
>>>>> > >> > 
>>>>> > >> > Also, any comments on the relative merits of Ilford vs. Kodak
>>> > > chromogenic film would be
>>>>> > >> > welcome.  TIA
>>> > > 
>>> > > I'd be very interested in anyone's comments about that as well, I've
>>> > > yet to test the Kodak.
>>> > > 
>>> > > Tyler
>>> > > 
>> > 
>> > -- 
>> > 
>> > Harry F. Lockwood
>> > 
>> > 
>> > 
>> > 
>> > [Non-text portions of this message have been removed]
>> >
> 
>  
>     


-- 

Harry F. Lockwood




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