Hi Frankg,
I regularly do a kind of test strip to compare variations before going to final prints. I
have no idea whether or not my methods are efficient (probably not), but they seem
to work for me - and are similar to Caponigro's screen comparison methods. I
create a blank file sized to the paper I want to test print onto, usually 8.5x11. Then I
crop out a slice of my original image and save it as a separate file, then size it so
that it will form a strip on the blank file (I usually run 4 variations across the length
of an 8.5x11). I duplicate the new strip image three times and apply whatever
variation I am interested to the three images and then drag these 4 strips (3
variations plus original strip) onto the blank file and print it. I find this particularly
valuable for comparing different USM settings. Because my monitor and printer are
well calibrated, I get a print that looks like the screen, but with USM this doesn't
seem to be good enough - I need to judge it in the print.
Before making large prints (20x25), I usually spend time getting the image to look
the way I want by printing a few 8.5x11s with small variations in adjustment layers
to see the difference in the print. I also frequently crop out a critical piece of a 20x25
image file and print it on 8.5x11 to see how it will look - particularly useful for USM
since each print size needs a different USM.
My problem is that I can get really picky over subtle differences. If I had an infinite
amount of time, I could play with a single image file for a very long time, tweaking
this and that and comparing small prints. I am going to create a wall in my new
studio where I can thumbtack up a bunch of variation prints and view them under my
preferred lighting (another whole subject here).
I am sure there are a lot of other ways to go about all this. I have used gradients on
adjustment layer masks to search for the right level of effect (opacity of mask) in a
test print. Etc., etc.
{{Studio update: framed walls are sheathed with plywood, scissored trusses have a
plywood roof, windows are installed. The whole backyard will be a mudpit if it ever
rains or snows-need a cover crop-probably winter wheat to be rototilled in the
spring.}}
Tom Andrews
http://www.wildlandart.comShow quoted textHide quoted text
> In order to conserve paper, especially if you're using a premium
> priced product like Photo Rag, how can I best do "test strips" in PS ?
>
> For those who did not work in a conventional darkroom, test strips
> are multiple exposure strips made on a single sheet of paper(to
> compare subtle increments of exposure & save wasting entire sheets.
>
> Obviously the issue isn't exposure here but I thought there must be a
> way of applying various differences, perhaps on separate layers, and
> having them side by side on a sheet? Or, perhaps there is a way of
> utilizing off cuts from larger sheets, & printing a portion of the
> image.
>
> Anyway, if you're working in some such way, I'd be interested in
> hearing your method/s
> thanks
> Frankg