# Pentax smc DA 50-135mm f/2.8 - f/22

**Brand:** Pentax
**Category:** Photo
**Code (GTIN/SKU):** 0027075129276
**Canonical URL:** https://openreviews.io/en/reviews/pentax/pentax-smc-da-50-135mm-f-2-8-f-22-0027075129276

## Rating: 4.2/5 ★★★★☆ — 2 reviews analyzed
_Confidence: high_

## At a glance

Pentax smc DA 50-135mm f/2.8 - f/22 reviews: 4.2/5 based on 2 analyzed reviews, updated September 4, 2026.

Praised: constant aperture and brightness.

2 reviews analyzed, all published on other sites.
Other sites: 1 source, 2 reviews, average rating 4.2/5.
How we count reviews: https://openreviews.io/en/methodology

## AI summary

This telephoto zoom lens stands out for its large, constant maximum aperture of f/2.8, which proves to be particularly bright. It thus offers excellent control over depth of field and performs very well for capturing subjects in low-light conditions.

## Strengths

- **Constant aperture** — The maximum aperture of f/2.8 remains constant throughout the zoom range, which greatly facilitates exposure.
- **Brightness** — Its high brightness allows for sharp shots and beautiful background blur even in low light.

## Frequently asked questions

- What is the sharpness quality at wide open aperture?
- Is the autofocus motor fast and quiet?
- Is this lens weather-sealed?
- What is its weight during prolonged use?

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_Source: OpenReviews — https://openreviews.io/en/reviews/pentax/pentax-smc-da-50-135mm-f-2-8-f-22-0027075129276_