Nipan_51

Lives in Greece Athens, Greece
Works as a Chemist/Retired
Joined on Jul 3, 2008
About me:

Canon Poweshot A 720IS
Pentax K-S2

Comments

Total: 7, showing: 1 – 7
On photo At the port in the Your City - Brick Road challenge (7 comments in total)

Συγχαρητήρια!!!

Link | Posted on Jun 6, 2018 at 17:48 UTC as 2nd comment

It looks like a missing link coming to place much too late...

Link | Posted on Oct 10, 2017 at 16:43 UTC as 231st comment
On article Sigma 17-70mm f/2.8-4 DC Macro OS HSM | C review (106 comments in total)

I have got this lens for my Pentax K-S2 camera. In general, I am happy with it. Today, however, I discovered a small problem: When it is in full zoom and the camera is set on its back, the zooming section retreats spontaneously, as low as about 24mm. Does anyone know if there is some way to fix it?

Link | Posted on Dec 20, 2016 at 14:19 UTC as 18th comment | 1 reply
On article Pentax K-1 Review (2663 comments in total)
In reply to:

star shooter: Anyone know how the sensor 'moves' in relation to the stars? How long can one exposure to the stars with this feature and what lens will it work with to get the best picture?

I had a Pentax K-30, that collaborated with the GPS module very well. I had shot even 2 min good exposures at 300 mm. Of course, sometimes I had to perform the "Precise Calibration" function in order to achieve that. The new KS-2 is not that good. Another issue is that the camera has to be moved from time to time, if somebody has to track the same sky area for a long time.

Link | Posted on Feb 21, 2016 at 14:16 UTC
On article Pentax K-1 Review (2663 comments in total)
In reply to:

star shooter: Anyone know how the sensor 'moves' in relation to the stars? How long can one exposure to the stars with this feature and what lens will it work with to get the best picture?

The sensor is moved by its stabilisation mechanism , under the guidance of the GPS system, taking into account the geografical coordinates of the camera position. In this way, the sensor is tracking the same spot in the sky. The max. time to do that depends of the lens focal length and the distance from the celestial pole and cannot be longer than 5 minutes. The camera, as a whole is not tracking the target.
For lower level bodies (K-5, K-30, K-S2) an external accessory is available, the Pentax O-GPS1.

Link | Posted on Feb 18, 2016 at 14:24 UTC

It looks like image quality has reached its ceiling

Link | Posted on Aug 22, 2013 at 06:22 UTC as 111th comment
On photo Aphaia Athena Temple - Greece in the Ancient Ruins challenge (5 comments in total)

Συγχαρητήρια, Βασίλη!

Link | Posted on Jun 10, 2013 at 06:37 UTC as 1st comment
Total: 7, showing: 1 – 7