How much ff resolution to not be "weak link" with Otus?

l_d_allan

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My understanding is that the very expensive Zeiss 55mm f1.4 Otus is pretty much state-of-the-art for lens quality, including line-pair resolution.

I also have the impression that the Otus has more resolution than even the Nikon D800e with 36mpx can resolve. In that sense, the Nikon sensor is the "weak link".
  • I'm unclear if this is a valid question, but what full frame sensor resolution would "balance" the Otus so that neither was the "weak link"?
  • How about APS-C sensors with 24 mpx and no AA filter? I believe I've read that these sensors present the greatest challenge to the center of premium lenses.
  • Is there some kind of formula that relates optimal sensor resolution to line-pair resolution with a certain MFT definition?
  • How about very good, but not ultra-premium lenses like a Canon 35mm f2 IS prime?
  • How about a very good zoom like the Canon 70-200mm f2.8L II zoom?
  • Is there a way to estimate how much resolution a lens can "feed" from DxoMark lens ratings?
  • Sorry if this question has been asked before.
 
Solution
Has anybody seen these? Surely they must have but I'm posting them anyway for completeness and easy reference:

5bb4013fff06490897f585cd6e8a1df4.jpg

Here we see that the lens appears to do it's best for 40 lp/mm at about 87% MTF sagittal 5mm off-center. So that would be the 'target' for any candidate sensor, I would have thought.

It does compare well to the perfect lens at f/4:

b11ff7ab52a448af81e7daa54ffb491f.jpg.gif

By comparison at 40 lp/mm, the perfect lens has an MTF of just less than 90%.

At f/4, the OTUS seems almost perfect, i.e. just about diffraction-limited.

Therefore, taking the OTUS as 'virtually perfect' at f/4, it has an Airy Disk radius of 2.71um. In the simple Nyquist world, that would be the limiting sensor pixel pitch for an OTUS at f/4, would it not...
Along those lines, Goldratt's "The Goal" was required reading at the last company I worked for.
Thanks. Here's a link to it's Wiki entry ... written in 1984. I'll check if our local library has a copy, or can do an ILL (inter-library loan).

OK ... reserved so I can pick it up later this week, on "Date Night" with the TAGAL Mrs. Allan. (Talented And Gifted And Lovely)
That book hit home with me, because along with the usual management-speak sludge, their situation with a single machine bottlenecking a process was similar to a situation we faced--an entire product line ran through a single, high-precision machine tool. I used to quake with fear whenever any change had to be made to it. :-)
 
Apparently, the OP just emerged from a 40 month cryogenic state. ;)
Sorry.

Perhaps DPR should yellow the corners of posts in white-background mode, by age, going to brown for 15-year-old-posts.
Good idea. I've made a number of suggestions on the "Site Feedback and Help" sub-forum over the years. OK ... submitted.
https://www.dpreview.com/forums/post/60650669
Strange thing is, I read most or all of the older posts back when they were written, and all of them, including my own, were colored in threaded view as if I never read them.
My speculation is that when DPR upgraded their forum engine software, lots of stuff got reset. Annoying, but I used to be something of a fanboy of the DPR forum engine software.

IIRC, at some point years ago when it was out in front and pulling away from competitors, I pleaded with the powers that be to monetize it somehow. Sigh.
 
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