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Re: filmscanners: Hello



Hi Ken, welcome to the list.  A few quick thoughts.

o One strategy is to scan at the highest resolution and highest bits 
per pixel once to create a master file with all the possible data you 
can capture. This way you can make derivative files at smaller sizes, 
etc. and "never" have to rescan the image.

o Do your tone and color correction on this master file, but don't sharpen it.

o When you want to print it downsample it to the appropriate size and 
resolution and sharpen it for printing.

o When you want to display it on the web, downsample it to the 
appropriate size and resolution, sharpen it for the web, then save as 
JPEG with a medium level of compression.

o Save in TIFF in preference to BMP.  Among other things TIFF can 
support high bit (e.g. 48 bits/pixel) images, whereas BMP can't.

o The JPEG standard includes a lossless setting.  Photoshop 6 
supports it: set the quality level to 12. it will compress to, say, 
1/3 of the original size.  JPEG only supports 24-bit images.

o Do a Google search on Charles Poynton.  He's the gamma guru.  Gamma 
comes into play in setting up your monitor, ICC profile-based color 
management, and tonal correction with with a different twist in each 
circumstance.

o VueScan is often spoken well of on this list.

o If you run Windows, look into Picture Window at 
http://www.dl-c.com/ for a cheaper alternative to Photoshop that can 
manipulate high-bit images.

Have fun,

--bill




At 9:59 PM -0700 20-10-01, Ken Durling wrote:
>Greetings -
>
>Can you handle another newbie?  (I heard that groan) ;-)
>
>OK, not entirely new to scanning, but just got my first film scanner -
>a Canon FS2710 that I got 2nd hand.   Seems to be working fine.
>
>it's making me realize that I need to get into a whole other level of
>control and understanding of what I'm doing.  Prior to this all my
>work - about 4 years of it - has been on a HP 5200C flatbed, with the
>bundled PhotoDeluxe and occasionally Corel Photo House.  I've gotten
>pretty good at the basics.   I've tried out Photoshop Elements and
>like it, but at this point am wavering as to whether I should get the
>whole PS6 package or if PSE would do it.  IAny advice appreciated.  I
>know you need to know more about what I want to be able to do. 
>
>At this point I mainly am striving to just get the absolute best
>quality photo and then reproduction thereof that I can, given my
>budget, which is why I'm limited to 2720 dpi.  Probably it will be
>fine for my purposes, which is mostly web-based right now, but
>eventually I'd like to make my own prints, up to 8x10, with a very
>occasional larger one.  Don't have a photo printer right now, just an
>HP Color Inkjet, but will probably eventually get an Epson 1280 or a
>smaller one. 
>
>Right now I think most of my questions concern procedure with these
>large scans, which are new to me.  I'd appreciate any tips no how to
>minimize loss when compressing to a jpeg.  For example, Is there any
>substantial difference as to whether I save the original scan as a
>.TIFF or a .BMP?  These seem to be the main options offered by the
>Canon software.  I do have a trial copy of Vuescan, which I'm *very*
>impressed by so far, and will be going over to a full version of that
>probably, unless I'm convinced otherwise here!  Vuescan seems to be
>able to handle different films much better. 
>
>Another question when working with large files like this is at what
>point do you do most of your image adjustment?   Do you do all your
>color balancing, sizing, and similar image property work on the .TIFF
>and then compress and run sharpen on the jpeg?   
>
>So I have a lot to learn about color control, and have basically zero
>experience with color management.  But I'm not doing a lot of printing
>just yet, so that's probably not my first concern.  To start with I'd
>appreciate a good explanation of "gamma." 
>
>Anyway, enough for now!  Needless to say, some or all of the above may
>be able to be answered by links and FAQ's, please feel free to refer
>me to the requisite sources, I'm a good reader!
>
>If you want to critique what I've been doing thus far, I have a
>portfolio at photo.net:
>
>http://www.photo.net/shared/community-member?user_id=402251
>
>And a primitive template-based website.  URL is in my sig.
>
>Thanks very much.  I promise to try not to ask the 14,000 most asked
>newbie questions.
>
>
>Ken Durling
>
>Website http://home.earthlink.net/~kdurling/
>
>Alternate e-mail:  kdurling2001@yahoo.com

-- 

======================================================================
Bill Fernandez  *  User Interface Architect  *  Bill Fernandez Design

(505) 346-3080  *  bill@billfernandez.com  *  http://billfernandez.com
======================================================================




 




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