This article shows the effect of the RICOH THETA Z1’s mechanical aperture mechanism (F-number) on image quality.
In this test, the difference in F-number does not affect the resolution, but the effect of suppressing color bleeding was confirmed.
The following is Z1 shot of a check pattern placed 1m away and images cut out from DNG files.
From left to right, the shots taken with F2.1, F3.5, and F5.6 settings are listed.
Below, the check pattern is placed vertically.
The order is F2.1, F3.5, F5.6 from the left as above.
Finally, a comparison of diagonal check patterns is shown.
The check pattern was created by me instantly. One figure consists of 11 lines.
The shooting setting is as follows.
The resolution for a subject 1 m away is known to be about 0.93 mm per pixel, based on the relationship between the effective pixels in the sensor and the length of the circumference.
In other words, it should be impossible to distinguish between the lines in a figure that contains 5 or more lines per 1 cm.
Reference article : https://www.localguidesconnect.com/t5/General-Discussion/Examining-the-validity-of-the-output-of-RICOH-THETA-Stitcher/m-p/2882680#M1086659
I have put all the files used in this test in the following folders.
https://www.dropbox.com/sh/004mr6m5qg6cyyf/AAAnTGrvv22wTWYzXhOxXMVSa?dl=0
