That is oddly reassuring.... I thought it might be some other thing that I was not doing, but could not determine what. I usually have to increase the contrast and curves in a pencil sketch before it will project with any strength enough to show it at all. In my workshops I show a lot of working drawings in pencil, so I have to adjust the real drawings quite a bit to get my meaning cross. 

Linda M. Feltner Artist, LLC
P.O. Box 325
Hereford, AZ 85615
(520) 803-0538

On Dec 29, 2014, at 12:01 PM, Britt Griswold wrote:

> Pencil and pen an ink drawings may be very susceptible to a pix-elated appearance. It might depend more heavily on the type/quality of projection screen in the projector. I suspect the ability to show the light and dark greys is not up to snuff, so they go more black and white, thus making the image look more pix-elated on high contrast images where there are only 1024 x 768 pixels to represent the image.
> I don't think the image format, other than a very compressed JPG, would matter.
> Britt
> On 12/29/14 1:50 PM, Linda Feltner wrote:
>> Interesting. I do use a PPT program at the museum. Sometimes I set it to run on two screens. Mostly
>> not.
>> At home I have not tried to project the PPT program. I use it mainly to project a working drawing or
>> final sketch onto the good paper. Those files are either .psd, .tiff or .jpeg.  I don't think I've
>> tried a .pdf file.hmmm..
>> I have used the same VGA adaptor for several years, in workshops at the conference, various
>> workshops, and at the museum. It seems to perform fine. But I will inspect the pins, regardless.
>> One thing I have noticed with pencil drawings projected. This also happened in the classroom at the
>> last conference. The photos look fine. But any working drawing pencil sketch which could have been a
>> JPEG or PDF of 150-300dpi, projected in a pitiful manner. Very pixelated. I asked the technician at
>> the time could we get any better resolution out of it, and he looked at the Display preferences to
>> see if we were using the highest res possible. Apparently we were.
>> So it remains curious. I have a series of workshops coming up and may have to do a test experiment
>> using the same images, making notes of the resolution settings of the computer and any other influence.
>> Cheers, I'll look at what you mentioned.
>> L.
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