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[OM] Re: Best guess for arrival of E-2/E-3

Subject: [OM] Re: Best guess for arrival of E-2/E-3
From: Winsor Crosby <wincros@xxxxxxxxxxx>
Date: Sat, 23 Jul 2005 16:58:05 -0700
Very informative as usual, Moose. Thank you for sharing your  
experimentation.  I will have to put that myth away.



Winsor
Long Beach, California, USA




On Jul 23, 2005, at 3:36 PM, Moose wrote:

> Andrew Dacey wrote:
>
>
>> On 7/22/05, Winsor Crosby <wincros@xxxxxxxxxxx> wrote:
>>
>>
>>
>>> The way I understand it is that all printer hardware requires a
>>> certain native resolution and that their drivers will resize the
>>> image, automatically and unseen, to that resolution before  
>>> sending to
>>> the printer. It is separate from any adjustments in Photoshop. Low
>>> resolution, and the driver upsizes and high resolution it downsizes.
>>> If you are going to let the printer driver do this then the best
>>> results are obtained if it receives an image with a resolution that
>>> is an even factor of the native. For instance with an Epson printer
>>> which is supposed to have a 360dpi native resolution what you should
>>> give it is that or 180 dpi or 120 or 90, with the image dimensions
>>> specified in the printer dialogue, for the driver to do its best job
>>> preparing the file for the printer hardware.
>>>
>>>
>>>
> I used to believe this to be the truth, the whole truth and nothing  
> but
> the truth. In my case, this conclusion was a result of some of my
> earliest scanning of film and printing on my Epson 1270. Some prints
> came out very odd and I concluded it was due to the uneven  
> multiples. So
> I have a table of even divisions of the printer max resolution of 1440
> dpi here on the desk. This was more than a little inconvenient, as it
> limits my freedom of cropping and image sizes.
>
>
>>> That said, a driver is a little program thrown in for free. Resizing
>>> to its native resolution is best done in something more capable like
>>> Photoshop before you print. All this stuff is a little like casting
>>> runes though.
>>>
>>>
>>>
> Continuing my story; on the recommendation of someone here, I bought
> Harald Johnson's "Mastering Digital Printing" He disagreed with all  
> the
> above. First, as a matter of theory he contended that printer
> manufacturers have both intimate knowledge of how the printer actually
> works down at the pixel level and a huge stake in the quality of the
> drivers. Without an excellent driver, the best printer hardware in the
> world is no good. Second, he said he had made many, many prints
> comparing the use of various resizing apps to match ppi of image to  
> dpi
> of printer, or even divisions of same, with simply sending the  
> image as
> capture/scanning/cropping/etc. create it, directly through printer
> drivers. His conclusion was that the simple solution of trusting the
> printer driver was always at least as good, and sometimes better, than
> anything else he tried.
>
> So I tried his recommendations, and darned if they don't work. At  
> least
> with the 1270 and the Epson driver, it doesn't seem to make any
> difference at all what the ppi of the image is, as long as it's not  
> very
> low, the prints come out fine. So I find I can just set the crop  
> tool to
> the size of the print I want to make, size and move the crop box,  
> which
> is then locked to the proper proportion, to the best crop of the image
> for the print format, and print away. So what if the ppi comes out to
> 357.731? If I change it to 360, which happens to be exactly 1440/4, it
> looks just the same in a print as if I leave it at the odd, non- 
> integer
> setting. I'm pretty cure the driver is a lot smarter than I ma, in its
> little specialty area.
>
> Now that doesn't mean I don't have to get all the other details right,
> choice of paper type in the driver, choice of icc profile color
> management or printer driver color management (use both at once or
> neither, and weird color can be yours!), choice of printer
> "quality"/dpi, speed, microweave, etc. Those can make a real  
> difference.
> The Red River Paper 53lb. Premium Gloss works wonderfully at 1440 dpi
> and the Photo Quality Glossy Film setting of the driver, as RRPaper  
> say.
> Kodak Premium Picture Paper doesn't work very well at 1440 dpi and  
> high
> speed, but fine at 720 dpi and low speed, again as Kodak says.
>
> Moose
>
>
>
>
>
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