Monthly Archives: June 2025

The best PentaxRumors posts for May 2025

By admin | Published: June 3, 2025

Here are the best PentaxRumors posts for May 2025:

Posted in Top 10 posts | Leave a comment

Ricoh 360 Theta A1 camera officially announced

By admin | Published: June 3, 2025

The previously rumored Ricoh 360 Theta A1 camera is now officially announced (check for pre-order links). The new A1 model is designed for professional use: Theta Z1: Maximum image quality, ideal for high-precision scanning, professional photography, or marketing visuals. Theta X: Simple to use with an integrated screen, ideal for fast and versatile shoots. Theta […]

Posted in Ricoh Theta | Tagged , | Leave a comment

Pentax K-mount 50th anniversary

By admin | Published: June 2, 2025

The Pentax K-mount was introduced 50 years ago: “The Pentax K-mount, sometimes referred to as the “PK-mount”, is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs […]

Posted in Uncategorized | 1 Comment

New patent application for Pentax 70-150mm, 100-170mm, 70-180mm, and 150-250mm lenses

By admin | Published: June 2, 2025

Ricoh has a new patent application released on May 30, which includes several optical lens designs/calculations: 70-150mm f/4.6-5.7 100-170mm f/4.6-5.2 70-180mm f/4.1-6.1 150-250mm f/5.3-7.9 Additional informtion:

Posted in Patents, Pentax lenses | 1 Comment