[LittleSkink]

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I use my DA 20-40 with the attached 55mm "hood". Mine has a deep metal lens cap which fits over this, but which unfortunately has got damaged, so I want another

I know the little hood is MH RA 55 (it says so on side)

I know that the O-LW65A is the standard metal cap (Pentax told me) for use as a lens cap without the 55mm

But I don't know what lens cap will fit the lens with the 55mm attached

anyone point me in the right direction please?

[c.a.m]

I know that the O-LW65A is the standard metal cap (Pentax told me) for use as a lens cap without the 55mm

I have a DA 20-40mm lens. The outer diameter of the front of the hood is 65mm, and the metal lens cap that fits the hood is model O-LW65A.

Without the hood, the lens could take a 55-mm standard pinch-type cap.

- Craig

[hcarvalhoalves]

With the hood attached a 52mm pinch-type lens cap will fit on the _inside_, just tested here with the cap from the 18-55.

[pid]

I use a Universal Silicone Lens Cap for my 20-40, because the original lens xcap always falls off in field.
Universal Silicone Lens Cap Cover For DSLR Camera Waterproof Anti-Dust xb | eBay