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01-08-2016, 09:43 PM - 1 Like   #1
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Pentax O-GPS1 vs K3 ii

It has been stated that the
K3 ii Astrotracer function is NOT as good as
the K3 with the
Pentax O-GPS1

It is reported that star trails show up sooner on the K3 ii
and that the K3 with O-GPS1 can get at least double the exposure time

before star trails appear.


Comments please.

01-08-2016, 10:24 PM   #2
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Source of the comments?
01-08-2016, 11:10 PM   #3
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Sounds like calibration gone wrong.

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01-09-2016, 04:01 AM - 2 Likes   #4
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01-09-2016, 10:17 AM   #5
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QuoteOriginally posted by jawsy Quote
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01-10-2016, 09:19 AM   #6
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Original Poster
Source of original comment

On Youtube the "photouniverse" fellow
had a k3 with the astrotracer unit attached and a new k3 ii

The k3 was producing better results than the k3 ii
for astrophotography. The k3 tracked significantly better than the k3 ii.
01-10-2016, 09:39 AM   #7
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As has been iterated, if GPS has been precisely calibrated in either case, how could there be a difference. That is like saying that the GPS locator or compass has quit when it has not.

I have the O-GPS1 unit on a K-5IIS and also have a K-3II. I have never experienced a fault with either system.

I know there are a lot of components that can contribute to any type of shooting, but if the unit is precisely calibrated and has power I would not find fault. If there was a fault like that, I would assume it would have been known long before this.

I am just weighing the factors.
01-10-2016, 05:24 PM   #8
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QuoteOriginally posted by Danaher Dempsey Quote
On Youtube the "photouniverse" fellow
had a k3 with the astrotracer unit attached and a new k3 ii

The k3 was producing better results than the k3 ii
for astrophotography. The k3 tracked significantly better than the k3 ii.
I tried searching for this video and came up empty. Can you post a link?

I have a K-50 with an O-GPS as well as the K-3 II so I'm interested in this topic but without seeing how the original test was conducted it's hard to make a truly informed comment.

01-21-2016, 07:34 PM   #9
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Original Poster
Jim S.

I did some searching on Youtube in "Photouniverse" and now I cannot find the original content.

Sorry.

-- Dan
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