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01-31-2012, 08:21 AM   #1

Lens Compatibility w/ Pentax K110D Body

I was about to purchase a DA 18-135mm Pentax lens (21977) when I stumbled across a few sites that suggested that this lens is not compatible w/ the K110D body. I've also found a number of sites that say all K-series lenses are compatible w/ the K110D body. So, I called Pentax CS and the rep told me that the DA lens should work fine w/ my K110D. I would like to believe the Pentax rep, but then why do some sites suggest otherwise? Does anyone know for certain if this DA lens is compatible w/ my K110D and/or what the compatibility issues may be? TIA

01-31-2012, 08:56 AM   #2
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It won't autofocus, but otherwise it will work. Some might call that compatible and some might not.
01-31-2012, 09:03 AM   #3
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The 18-135 is an SDM-autofocus lens. SDM-capable Pentax bodies started with the K100D Super. It's a K-mount lens, and will fit on your K110, but it won't autofocus, as drougge stated. Your camera uses the 'normal' screw-drive AF lenses.
01-31-2012, 12:51 PM   #4

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For the record, the oldest Pentax body that supports SDM is the K10D, and that only with version 1.30 or 1.31 firmware. The K100D Super, an updated version of your camera's sister, the K100D, also supports SDM lenses.

The K110D apparently was not very successful, in terms of sales, so there was no K110D Super, with SDM support.

All lenses made after that, including the K20D, K-m, K2000, K-7, K-x, K-r and K-5, all support it as well.


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