First off, let me backtrack and say kudo\'s for the testing comps work.
Looking at the side by side corner crop comps (pg. 4), three things are apparent to me (in the realm of push / pull). First and second are the color / contrast variances. Third is the field of view / perceived size diff.
It seems like the stock fov is wider, and simultaneously, the image features seem larger than compared to the modded counterpart. It seems as though by moving the point of refraction more distant, the projection is enlarged, but since the capture area is the same, you are losing some of the projected image, as well as making it smaller (i.e. capture area smaller than projection area). Not sure I\'m fully following what is the reason behind the diff (noting my explanation as a question, not an answer).
Probably an \"insignificant\" difference in fov for better corners, but isn\'t that kinda like cropping out the extreme offending corners?
The effect seemingly being somewhat like using a .7mm extension tube ... which goes back to my question @ making the adapter .7mm thicker, instead of modding the stack. It would seem that the stack mod is creating a color variance, whereas I\'m not sure if a .7mm thicker adapter would induce that (retaining the OEM design stack). Sony is pretty good at understanding color. I\'m not sure that modding the stack and creating profiles is the better route to color. Would be very curious to see the diff between a .7mm stack mod, vs. an AA removal (likely accountable for certain diffs) with replacement glass to retain 2mm OEM stack thickness vs. stock with a .7mm thicker adapter.
I guess my perspective is that by modding the stack thickness, we are making a globally applicable adjustment that can result in correction for non-native optical projection design ... which could simultaneously incur over / under correction for native optical projection (note Otus comps). However, if we left the stack thickness stock (replacing AA with cover glass maybe), then we are no longer tampering the OEM (i.e. color) design refraction angles between lens / stack / sensor for OEM design glass. By making the .7mm adjustment via adapters (vs. stack), we can selectively apply correction vs. non-correction application.
Nov 22, 2015 at 11:40 AM
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