Pentax's macro lens for the 6x7 system — the 135mm f/4 for close-up work on medium format.
The Pentax SMC 67 135mm f/4 Macro is a dedicated macro lens for the Pentax 6x7 and 67 medium format systems. On the 6x7 format, 135mm provides approximately a 67mm equivalent perspective — a moderate short telephoto ideal for close-up work with comfortable working distance. The macro designation indicates closer-than-normal focusing for the 67 system.
Optical performance is excellent for macro work on medium format. Sharpness at close distances is outstanding with flat-field correction. The large 6x7 negative combined with macro magnification produces extraordinary detail. Stopped down to f/8 or f/11, the lens delivers superb results. SMC multi-coating ensures good contrast even in challenging close-up lighting.
Pentax 67 mount. Filter thread is 67mm. Weight is approximately 540 grams — moderate for the 67 system. Build quality is excellent with all-metal construction. Manual focus with a smooth helicoid. The macro capability provides closer focusing than the standard 67 lenses, essential for product, botanical, and scientific photography on medium format.
Available on the used market at moderate prices — less sought after than the portrait-focused 67 lenses. Check for smooth focus operation and clean optics. An essential lens for Pentax 67 photographers who need close-up capability. The medium format macro advantage — greater detail resolution and smoother tonal transitions — is significant.