Thanks for that info, I based my own observations on a 645DF 28mm wide angle where corner chromatic abberation is pretty large, but cleans up very well with lens corrections. I've also heard an interview with a Hasselblad designer that they have as strategy to correct some abberations in software rather than making overly complex optical designs, but I never looked into how big those abberations actually are.Actually, the Hasselblad converter (Phocus) will apply corrections even when the lenses are shifted using the HTS system. For this to work, the tilt and **** values are stored in the exifs.
Not as much as one would think for the H lenses, chromatic aberrations are actually very small. What Phocus mostly corrects is distortion, which is not low enough for reproduction work without digital correction.
In any case I would expect abberations be much larger on the widest angles, on longer lenses simple designs will perform well.
The HTS system is interesting, haven't seen any actual results of it but I've assumed that it's not that competitive with tech cam results as it's based on a teleconverter. The widest lens would be 1.5x24mm = 36mm, wide enough for me, it would be interesting to see how that performs with lens corrections and all. Could be difficult to focus it seems, as it becomes f/7.5 with the HTS on.
Edit: found a user-contributed review here at GetDPI:
http://www.getdpi.com/forum/medium-format-systems-digital-backs/10566-hasselblad-hts-1-5-a.html
the summary unsurprisingly being that HTS is not the answer to the pixel peeper.
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