Originally Posted by
lenicolas
Your lens would be fine, it’s just that you’d get a bigger file if you could get closer and stitch several shots.
Unless your dslr has very low resolution, 1:1 is overkill for 4x5.
When “scanning” 4x5 I only get so close that the short side of the negative fills the long side of of my dslr, and then I stitch 4 shots to get the length of the negative. 106mm/36mm that’s roughly a 1:3 ratio, and with a 45mp dslr the resulting image is a little over 8.000x10.000 ; plenty of resolution for any print size.
1:1 would produce huge files that would be slower to process, and introduce problems with depth of field and film flatness.