[pure-silver] Re: Grain
- From: DarkroomMagic <info@xxxxxxxxxxxxxxxx>
- To: PureSilverNew <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 11 Jan 2006 16:51:16 +0100
Lee
I think you have lpi and dpi confused, but your book recommendation is a
good one and clarifies the math involved.
Regards
Ralph W. Lambrecht
http://www.darkroomagic.com
On 2006-01-11 02:36, "Lee Carmichael" <click76112@xxxxxxxxxxx> wrote:
> Peter,
> I would recommend that you spend some time with a phone book and look
> for service bureaus in you area. If I were doing this I would want
> to be involved with the bureau and if I had to, teach them what I
> want the negatives to look like. Isn't there a book out there about
> making digital negatives for alt printing? (Dan
> Burkholder
> http://www.danburkholder.com/Pages/main_pages/page1_main.htm book
> info on that page) I would get that book and study up and show it to
> the service bureau. They might only know how right now to make
> halftone negatives. That may be what you want if you can get them in
> the 2540 lpi and 200 dpi range. That is a pretty fine dot. Be aware
> that not all imagesetters can do 2540 but max out at 2400 lpi. There
> is some math that tells you at a certain lpi you can achieve a
> certain dpi. I am blanking out right now but if I think of the
> formula I will post that too. Good luck!
>
> lee\c
>
>
> At 11:26 PM 1/9/2006, you wrote:
>> Lee Carmichael wrote:
>>
>>> I have installed over 100 imagesetters and platesetters in my
>>> working life. The issue with imagesetters is when they go bad it
>>> costs a lot of money. They cost in the neighborhood of 35K to buy
>>> one of the lower end units. Imagesetters can be repaired. I don't
>>> totally believe Lensworks explanation. There are other companies
>>> that have imagesetters. This is the way negs and plates are made these
>>> days.
>>> Direct to press is starting to make some headway into the shops but
>>> these presses are very expensive and only handle a small portion of
>>> the printing that comes into the shops. There are some direct to
>>> plate machines but we are talking 75K for the low end of these.
>>>
>>> lee\c
>>
>> Lee,
>>
>> That's good to hear. Can you recommend anyone for making digital negatives?
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