About Dustproof, Water Resistance, And Simplified Weather Resistance - Pentax 17-70mm - 17-70mm f/4 DA SMC AL IF SDM Lens Operating Manual

About dustproof, water resistance, and simplified weather resistance

• Dust-proof and water-resistant lenses
DA 55mm f/1.4 SDM, DA
DA 16-50mm f/2.8ED AL [IF] SDM, DA 50-135mm f/2.8ED [IF] SDM, DA 60-250mm
f/4ED [IF]SDM
These DA lenses are dust-proof and water-resistant because each part is individually
sealed. This makes it difficult for dust and water to enter the lens.
• Lenses with simplified weather-resistant construction
DA 18-55mm f/3.5-5.6 AL WR, DA 50-200mm f/4-5.6ED WR
These lenses are made with a simplified weather-resistant construction by using DA
lens sealing technology which makes it difficult for water to enter the lens.
300mm f/4ED [IF] SDM, DA 200mm f/2.8ED [IF] SDM,
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