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my fix of the K-30 aperture problem without disassembly

Started Nov 6, 2017 | Discussions thread
Futax Senior Member • Posts: 1,353
Re: my fix of the K-30 aperture problem without disassembly

Russ Miller wrote:

Unfortunately, there is a lot of incorrect information on the ABF issue.

First, the last thing that should be done with an ABF issue is rapid firing of the shutter. The magnetic strength of the bad solenoids is too strong. Rapid firing of the shutter has been known to damage the mechanical mechanism.

Second, Pentax has updated the defective solenoids and they can (and should) be used to repair the camera.

Third, The K70 never suffered from this issue in any real numbers. Pentax fixed the issue early in the K70 release and all new K70 cameras after 2016 have the newer solenoid. This is a non-issue at this point.

There is no reason to be skittish about the K70 cameras anymore.

I think the most common understanding is that the new solenoid used in the K-70 is "improved", but not to the standard of the original, as used in the pre-K30 entry-level models.

Faulty K-70 solenoids are fairly rare, but have been reported.  Best to use the camera regularly, as that may well keep the failure at bay...

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- Keith.

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