I had to manual focus because the A2X S converter doesn't support autofocus. 
Last month, when I shot the moon with the 150-450 and DA 1.4X converter, I auto 
focused on a high contrast feature near center and it worked fine with normal 
response time.

Paul via phone

> On Nov 14, 2016, at 8:40 AM, Alan C <[email protected]> wrote:
> 
> I'm curious. Did you AF on the Mare Imbrium? It would have taken about 2½sec
> there & back. We haven't seen it yet - overcast but no rain.
> 
> Alan C
> 
> -----Original Message----- From: Paul Stenquist
> Sent: Monday, November 14, 2016 3:27 PM
> To: Pentax-Discuss Mail List
> Subject: Re: PESO: As Big as it Gets
> 
> My son tells me the moon was full, not one day short of full last night.
> Good thing I have him around to straighten me out!
> 
> Paul via phone
> 
>> On Nov 13, 2016, at 11:55 PM, Paul Stenquist <[email protected]> wrote:
>> 
>> So many typos! Meant to say I shot it with the DA 1.5X last time.
>> 
>> Paul via phone
>> 
>>> On Nov 13, 2016, at 11:32 PM, Paul Stenquist <[email protected]> wrote:
>>> 
>>> No. 450mm is just too wide for a moon pic. Ivshot it withvthecDA 2.5 last
>>> time. The A2X S seems better.
>>> 
>>> Paul via phone
>>> 
>>>> On Nov 13, 2016, at 11:09 PM, Jack Davis <[email protected]> wrote:
>>>> 
>>>> 
>>>> Nice image, Paul!
>>>> Have you tried a shot pulled up a bit but without the A2XS T/C?
>>>> 
>>>> J
>>>> 
>>>> ----- Original Message -----
>>>> From: "Paul Stenquist" <[email protected]>
>>>> To: "Pentax-Discuss Mail List" <[email protected]>
>>>> Sent: Sunday, November 13, 2016 5:52:23 PM
>>>> Subject: PESO: As Big as it Gets
>>>> 
>>>> I continue to be fascinated with focusing the moon. This is as close to
>>>> there earth as it will come in my lifetime. It’s one day short of full
>>>> here, but that gives it a bit of dimension.  I can’t get any closer.
>>>> This is the Pentax D FA 150-450 with the A 2X S converter. to yield 900
>>>> mm. Manual focus. f8, 1/200th, ISO 400.
>>>> 
>>>> http://photo.net/photodb/photo?photo_id=18310218&size=lg
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