Re: Brush development of palladium prints. RE: Potassium Oxalate developer for Platinum printing from Yves Gauvreau on 2006-05-04 (May 2006 Alt-Photo-Process-L)

From: Yves Gauvreau <gauvreau-yves_at_sympatico.ca>
Date: Thu, 04 May 2006 12:03:12 -0400
Message-id: <138101c66f94$3f0c2000$0100a8c0@BERTHA>

Terry,

it is well known that if you use the jpeg format for your images you will definitely loose a bit each time you open and save back the file. Whatever format you use, your image are stored as integer values and when you apply certain function you enivitably loose the decimal part at some point. The more often you round numbers the more bits get trown away.

I'm sure you where well aware of this and just forgot about it like I do all the time.

Regards
Yves

  ----- Original Message -----
  From: TERRYAKING@aol.com
  To: alt-photo-process-l@usask.ca
  Sent: Thursday, May 04, 2006 11:43 AM
  Subject: Re: Brush development of palladium prints. RE: Potassium Oxalate developer for Platinum printing

In a message dated 4/5/06 2:28:40 pm, gauvreau-yves@sympatico.ca writes:

Terry,

you say below "I prefer to get my negatives right frst and not use tone controls. To my eye this produces a better print.", I think I understand why you say this and here I assume you are talking digital, to make it as short as possible I would sayf you are not using the proper methods or techniques to work out things in the numerical world things can and will degrade fairly ra ipidely. I'm not saying you have poor working methods, I'm just trying to find possible explanations to why you say such a thing. There are other possible explanations of course.

Regards

Yves

No, as I use film negatives. FP4 rated at 32 ISO, your assumption does not apply.

Evenso, when you say "If you are not using the proper methods or techniques to work out things in the numerical world things can and will degrade fairly rapidely", which 'things' will degrade and in what way ?

Terry

Terry King FRPS

RPS Historical Group (Chairman)

www.hands-on-pictures.com/

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Received on 05/04/06-10:05:38 AM Z