I'm pretty sure the K-5 doesn't work with the electronic aperture lenses. That would require a firmware upgrade, and the New Richo/Pentax isn't Fuji.

On 7/22/2016 8:33 AM, Jack Davis wrote:
I'm not aware of the version designation.
Check any included info and chase
it on the web. I'll take a look also.
J

Sent from my iPhone

On Jul 22, 2016, at 5:16 AM, David J Brooks <pentko...@gmail.com> wrote:

its the L version if that makes a diiference

Dave

On Fri, Jul 22, 2016 at 7:47 AM, Jack Davis <jdavi...@comcast.net> wrote:
Could it be the new version with electronic aperture?
J

Sent from my iPhone

On Jul 22, 2016, at 3:58 AM, David J Brooks <pentko...@gmail.com> wrote:

So i used the 55-300 at the plowing demo yesterday. Hot humid and
dusty day. The unit itself focused quite nicely, it fits well on the
K-5 and my hand zoom barrel stiff but thats fine. Barrel fully
extended makes for a bit of a shaky hand held. IQ and sharpness seem
decent enough. Only thing and i'm not sure its due to the lens or the
camera metering but when using the 17-70 or the 50-200 a +.3 EV
correction is needed. I used +0.7 and all of the DNG's are still way
under exposed. I would normally get a small amount of under exposure
shooting into the sun with my other lenses but every shot, into the
sun or with the sun, is quite a bit under exposed. I'll need to adjust
every one in LR.

Any thoughts on this.

Dave

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