Re: the no cost 'DIY only' approach - converting slides and neg's to digital ...
- From: "Ben Brugman" <Ben@xxxxxxxxxxx>
- Date: Sat, 15 Oct 2005 20:30:33 +0200
If you want to work at speed a slide projector is a good idee.
But it is very difficult to get an even illumination.
(It's fast, it's cheap, but it's not good).
To square the picture is fairly easy. Project the picture strait on
the wall. And aim the camera strait on the wall. Problem the
camera can not be in the same place (or same line) as the
projector. So offset the camera with the amount needed and
zoom out so that the slide is included completely in the frame.
Yes now you have black borders of different sizes around
the picture, you have to crop these.
(This cropping can be done in a batch).
Do not expect great quality with this method.
ben brugman
"dave" <tool_box@xxxxxxxxxxxxxxxxx> schreef in bericht news:Am84f.488$AO5.269@xxxxxxxxxxxxx
> have the following problem, but no funds:
> quickly and at no cost converting hundreds of 35mm neg's (cut to '5 negs
> per strip') and also 35mm slides (similar quantities), to digital
> images, hopefully at ZERO cost
>
> have the following equipment, and skills:
> good digital camera, with 'base to tripod/mount' ability, a good tripod,
> a 'working good' slide projector, a film and slide scanner (LS-1000
> nikon, but it's *painfully* slow, and the software is 'dicey at best').
> also have an extensive wood and metalworking background, plus all tools
> and supplies neccessary...
>
> first "mind flash": project slides onto white wall (or da-lite screen,
> if I had one), then use digi-cam to take pix of results (some minor
> image distortion might result; one end of image bigger/wider than the
> other, right?
>
> 2nd "mind flash": similar approach, but to eliminate the above 'too
> big@one side' image problem: project slides onto a piece of
> finely-ground window glass (have all the abrasives) arranged thus:
>
> camera ----------> | <------------- slide projector
>
> (the | above is the ground glass, upright/square/centered) in a dark
> room, suitable light shields employed)
>
> I'm -guessing- that, in the 'old days' there was such a thing as a
> 'film strip' projector (very similar to a slide projector). I have photo
> apps that'll do the 'color swapping' and 'end to end' flipping, to make
> the neg images positive/correct in relation.
>
> also, 3rd "mind flash": would it be possible to project the slide images
> onto a wall, or screen at an 'intentionally unsquare in relation' screen
> angle, so that when I use the digi-cam, I'd 'reverse compensate the
> angle' and get rid of the parallel/big-ended final image problem on the
> end results, withOUT having to use the 'ground glass intermediate' step?
>
> ok, how 'bout this, my 'half a periscope' idea: project images onto a
> mirror at 45 degrees to camera center line, with camera at the 'other'
> 45 degrees? or would that put me back into "way off at one end size of
> the image" city again?
>
> anybody ever tried any of these approaches? or are there any better,
> simpler, cheaper (or possibly more harebrained) ideas out there? if any
> of these ideas are workable, ANY of 'em would be -vastly- faster than my
> old slide scanner...
>
> come on - break loose with those ideas, guys :-)
>
> toolie
>
> --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
> if reply by e-mail, pls remove the 'weirdstuff' from my address prior to
> clcking send. thanks
> --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
.
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