6000+ dpi for scanning 4x5
That is 300dpi for a 80x100 inch print, suitable for peeping at nose-tip distance.
6000+ dpi for scanning 4x5
That is 300dpi for a 80x100 inch print, suitable for peeping at nose-tip distance.
Except that the geometry is different and I'm unsure how panorama-stitching-software "X" will behave. What the software expects is a 3_D scene and the camera rotating around the entrance pupil (not the stinkin' nodal point, mind you). What you have is a 2-D object and lateral translation.Steven, none of the usual pitfalls of panorama stitching will apply here
Hopefully there will be an option for that situation as well.
PTgui handles flat images very well, I do that all the time with my tilt/shift lenses for my digital camera. You are correct, rotate about entrance pupil not the "nodal" point which is a misnomer for the entrance pupil. I find mine using a laser pointer and visually align/find the entrance pupil for each lens. For each focal length as well if a zoom lens. Once could do this for a fixed prime on large format assuming one only uses the back standard to focus. So, could amke a freaking huge pano iwth a 4x5 using say a 150 or 210 lens. That would be interesting. Same rules would apply, do not alter your exposure setting at all from first image to last, do not alter focus, nor alter f-stop. I have seen people do all of this to "optimize" each frame. Also, if you have significant vignetting that will have to be taken care of by the stitching program. (PTGui will do this if you get the full blown version). Might also require a center spot filter to (maybe, depends on focual length and f-stop used)
+1 for PTGUI.
I learned something without even having to do the test. Thank you.PTgui handles flat images very well
One simple solution from a capture perspective if your wet mounting is, three passes with each colour. And simply combine the three images. This does mean that you will need to do the post image processing yourself, which may or may not be a problem (i.e. raw scanning where you do all the processing yourself including gamma, and color matrix). For example if your using colour perfect, that requires a raw scan anyway, so you have don't have to do the hard bits.
Actually I think there may a magic trick to fool vuescan, and get around the 32bit limit. Will give it a go next scanning session and let you know.
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