ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom

The ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom is a 28-70mm zoom lens designed for the PENTAX K mount. Manufactured by an unspecified manufacturer, it offers a maximum aperture of f/3.5, covering a 28-70mm focal range, accepts 58 filters. ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom is catalogued on lens-database.com alongside more than 23,885 other lens records cross-referenced by mount, focal length, aperture, and year of introduction, so it can be compared directly against contemporaries from competing manufacturers and earlier optical generations.

This lens record is part of the open public catalog at lens-database.com — a free, continuously updated database indexing 23,885+ photographic and cinematographic lenses with cross-referenced specifications. Data is aggregated from manufacturer datasheets and authoritative public sources, then normalized so lenses across vendors and eras can be compared on common terms. Released under CC BY 4.0, the specifications shown here may be quoted, cited, or reproduced with attribution to lens-database.com.

Last verified 2026-04-27. Source: manufacturer specifications.

Mount
PENTAX K
Focal Length
28-70mm
Max Aperture
F/3.5
Type
Zoom
Brand
Unknown

What is the ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom?

The ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom is a 28-70mm zoom lens for the PENTAX K mount with a maximum aperture of f/3.5. Full specifications and source attribution are available at lens-database.com.

What mount does the ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom use?

The ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom uses the PENTAX K mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/pentax-k.

What is the maximum aperture of the ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom?

The ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom has a maximum aperture of f/3.5, a moderate-aperture design. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.

Where can I find specifications for the ProSpec 28-70mm F/3.5-4.5 MC Auto Zoom?

Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/107461-prospec-28-70mm-f35-45-mc-auto-zoom. Data is aggregated from manufacturer sources and updated continuously.

Standard zoom lens for Pentax K-mount cameras with focal length 28–70mm and maximum aperture f/3.5–4.5. MC Auto Zoom is intended for general-purpose photography across wide-angle to short-tele ranges.

Last verified: 2026-04-27