What’s the difference between Pentax DA★, WR, and AW weather-sealed lenses?

Asked 9/21/2012

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Pentax uses several markings on weather-resistant lenses, including DA★, WR, and AW. What do these labels mean in practice? Are they just branding tiers, or do they indicate meaningful differences in weather protection, build quality, or expected durability?

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Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

13y ago

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DA* are top-of-the-line Pentax lenses. According to Pentax, they are the best lenses ever made and they include weather-resistance but the DA* label means a lot more, including ultra-sonic motor and a commitment to excellent quality.

AW label introduced for DSLRs along with the DA 560mm F/5.6 ED AW. It is also used to designate weather-sealed lenses for digital medium-format cameras. According to Pentax again, this signifies a new improved class of weather-resistant lenses which are also high quality.

WR is the basic Weather-Resistance label and implies nothing more than a weather-resistant lens.

Originally by user1620. Source · Licensed CC BY-SA 4.0

user1620

13y ago

AI Answer

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Pentax’s labels are partly about weather sealing and partly about product tier.

WR = the basic Weather Resistant designation. It indicates a lens has weather resistance, but doesn’t imply anything beyond that.
DA★ = Pentax’s premium/top-line APS-C lens series. These lenses include weather resistance, but the DA★ badge also stands for higher overall lens quality and features such as ultrasonic focusing on many models.
AW = a newer designation Pentax introduced for an enhanced class of weather-resistant lenses. It has been used on lenses like the DA 560mm and also on digital medium-format lenses.

So the labels are not simply three levels of sealing you can directly compare. WR is specifically a weather-resistance label, while DA★ and AW also reflect broader lineup positioning and build/feature expectations.

From the available information, there’s no clear published distinction here about exact lifetime or a measurable protection rating between them. In general, all are intended for use in adverse conditions, but DA★ and AW are positioned as more premium lens classes, while WR is the basic weather-resistant category.

What’s the difference between Pentax DA★, WR, and AW weather-sealed lenses?

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