I suspect what you did there was hit the landing page (with its summary table) and not
enter the actual site, with 2,000+ images, reviews, articles, full explanation of test procedures, company histories, serial number references, etc.
There's also a lens comparison tool quickly enabling you to acquire vital stats such as focal-flange distance, extension, weight, aperture type, optical formula, etc. There are many images shot with enlarger lenses, too, and over 1500 projector, industrial and repro lenses are similarly catalogued. No standard taking lenses are included among the 3000+ in the archive, apart from a handful of Sigma primes for reference in the Hall of Fame:
NEARWIDE OPEN NEAR f4–F8 NEAR f5.6–F8 FARWIDE OPEN FAR f4–F8 FAR f5.6–F8 Introduction The Delta Hall of Fame grades for sharpness 200 enlarger, projector and industrial lenses at two working distances. Lenses that score 90%+ are awarded Gold – reference-quality.Lenses that score 80-90% are...
deltalenses.com
If anyone spots any errors, or has any serial numbers, or information about lenses that are missing, please drop me a line.
If you search for Rogonar 75, you'll find five results - including the less common Rogonar SC, both versions of the Rogonar-S, the original Rogonar, and the Durst-repackaged Neotaron (AKA Rogonar).
deltalenses.com
If you search for Nikkor 75 -
https://deltalenses.com/?s=nikkor+75 - you'll find both versions, complete with serials and production dates.
Both Minolta and Nikon lenses land on page 16 of the main enlarger lens catalog:
Optics deployed in enlarging devices for printmaking from 35mm, medium format, or large format negatives. Most 40-50mm enlarger lenses cover 35mm ‘full-frame’ sensors, and allow tilt/shift movements on smaller cameras (Micro Four/Thirds, APS-C, etc). Lenses longer than 75mm typically project an...
deltalenses.com
To reiterate - and good call, Miquel - the CE80 Rokkor is several levels above the Rogonar and Rogonar-S, or the EL-Nikkor 75, which was the ugly duckling of the otherwise excellent EL-Nikkor N range. The comparable Nikon is the 80/5.6N, which is similarly top-notch.