[Alt-photo] Separating channels

Trevor Cunningham trevor at chalkjockeys.com
Wed Oct 22 14:14:53 UTC 2014

Diana is money on the mark, here. GIMP is the way to go. The only reason 
I use Photoshop is because I get the Adobe Creative Suite and upgrades 
from work. It may be a hard habit for me to break after being spoiled 
all this time, but if I only had one function that I used PS for, I'd 
have no hesitation to look elsewhere. GIMP is solid, well supported, and 
open-source community support forums tend to have productive 
conversations instead of gripe sessions.

On 10/22/14 4:30 PM, Diana Bloomfield wrote:
> Hey Henry,
> I've mentioned this before, but I use GIMP (free, open-source) to make separation negatives for tri-color gum.  I have never used Photoshop.  Granted, I do almost everything in-camera, so I don't do a lot of complicated work afterwards.  Not that the GIMP couldn't do some complicated work-- I've just never tried it.  I do get the negatives curved correctly for the process I'm using, and GIMP does that just fine.  I have never had an issue with it-- works perfectly for my purposes.  I'm not sure why more people don't use it, except that it's free.  If it cost the same as PS, more people would be using it, I'm sure.  I've also always used Macs.
> You can download GIMP in about 20 minutes.  http://www.gimp.org
> Diana
> dhbloomfield.com
> On Oct 22, 2014, at 6:29 AM, Henry Rattle <henry.rattle at ntlworld.com> wrote:
>> Hi everyone,
>> The only thing I use my elderly Photoshop CS for is to separate channels for
>> tricolour gum (and soon, I hope, casein!). It's not worth hundreds of pounds
>> for me to update to a new version of PS to run on my iMac just for that one
>> task. But to use CS, I have to maintain a separate bootable Snow Leopard
>> disc, which seems a lot of trouble for one job.
>> Can anyone point me to a mac-friendly application that will separate
>> channels, preferably cheap or free?
>> Many thanks
>> Henry
>> _______________________________________________
>> Alt-photo-process-list | altphotolist.org
> _______________________________________________
> Alt-photo-process-list | altphotolist.org

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