Ricoh has announced it is to push back the availability date of its premium Pentax-D 70-200mm lens, as it needs more time to ensure it meets the standards required for a member of the Star-lens series. Initially due to go on sale this Spring, the HD Pentax-D FA* 70-200mm F2.8ED DC AW is now set to arrive in stores in Autumn.

In a brief note on the company website Ricoh apologizes to customers who are waiting for the lens, and says that a design change has been required 'in order to achieve the extremely high quality of the star lens.'

The Pentax Star series comprises the company's highest quality lenses, and this new 70-200mm F2.8 example was due to be the first full frame lens to be graced with the Star designation. Sealed against dust and moisture, the 70-200mm was announced alongside the company’s HD Pentax-D FA 150-450mm F4.5-5.6 ED DC AW full frame lens at the Photokina show last September – at the same time it displayed a mock-up of its full-frame DSLR.

You can read more about the lens on the Pentax website.