Few times, during last months there is display color problem. Display is not physically broken. It displays colors properly - when no requirement for accurate color reproduring, like image processing.
When problem appears, some colors in the normal palette are displayed wrongly. Usually hues of green are totally lost. And bright blueish and shades of grey - have strange color cast. Same applies with skin tones, those are looking like pink shades. Restarting of the laptop, solves problem.
The problem could be (?) related to the Intel display adapter /video drivers. I updated drivers, and the usage of laptop will tell - does it help to cure the problem.
Sunday, April 1, 2012
Tuesday, March 27, 2012
Nikon D200 problems, part 3
Unfortunately, again problems with my Nikon D200 body. This time it is visible in the the raw -images already.
There was noticed strange banding all over the image area. Narrow stripes are located closely to each other. In a portrait image, stripes are visible as horizontally. The phenomenon gets worse, when the camera is exposed to low temperatures, like -20C and below that. I am not sure, is this a typical behavior for D200.
Two images attached, lower one is scaled from original to 800pix in height. Banding is only slightly visible. Upper image is direct crop in the middle of image, without scaling.
There was noticed strange banding all over the image area. Narrow stripes are located closely to each other. In a portrait image, stripes are visible as horizontally. The phenomenon gets worse, when the camera is exposed to low temperatures, like -20C and below that. I am not sure, is this a typical behavior for D200.
Two images attached, lower one is scaled from original to 800pix in height. Banding is only slightly visible. Upper image is direct crop in the middle of image, without scaling.
Wednesday, March 21, 2012
Winter scenery and halos
Little bit over one month ago, I had a trip to Pallas / Yllästunturi national park at northern Finland. We were snowshoeing there, with few colleagues from my company's photography club. These was cold and fresh winter air available, here's two halo images as sample:
Monday, March 19, 2012
ISS and Moon (19.3.2012)
Yesterday I got another alarm from CalSky -service, this time also ISS crossing the Moon disk. It happened at 19th March 2012, little bit before 8am - in Finnish local time. Not even a chance to observe, sleet was falling from the sky. Waiting for the next passing then...
Sunday, March 18, 2012
ISS and Moon (18.3.2012)
Approximately one week ago, I got email alert from the CalSky service. It predicted that the ISS would pass across the Moon disk at southern Finland, on Sunday morning 18th March 2012. The time for the crossing was 07:13:02 local time, re-checked yesterday - schedule was 07:12:57.
I tried to prepare equiment for taking image sequence of the ISS, with Nikon D200 and C8 OTA. Also found out that memory buffer at D200, fills is pretty quickly - max 5s sequence at 6fps. It would have needed at least 10...15s of buffer, because the passing of ISS would propably (?) change some seconds of the predicted time.
Another problem would been carrying the C8 scope to suitable place, since I do not have a car. On top of the building - there would be high place, but metal fence blocks the visibility. So then, waiting for the next passing of the ISS over moon or sun disk...
I tried to prepare equiment for taking image sequence of the ISS, with Nikon D200 and C8 OTA. Also found out that memory buffer at D200, fills is pretty quickly - max 5s sequence at 6fps. It would have needed at least 10...15s of buffer, because the passing of ISS would propably (?) change some seconds of the predicted time.
Another problem would been carrying the C8 scope to suitable place, since I do not have a car. On top of the building - there would be high place, but metal fence blocks the visibility. So then, waiting for the next passing of the ISS over moon or sun disk...
Monday, February 20, 2012
Optics Picture of the Day - Fograys
Few days ago I got my image published at Les Cowleys site, you can see it here. Image was taken at Myllykoski, near the city of Kuusamo in February 2011.
That particular place is suitable for photographing fograys, since on many clear winterdays with sunshine - fog rises from the unfrozen river and sun draws it beautiful rays to patchy fog layers.
That particular place is suitable for photographing fograys, since on many clear winterdays with sunshine - fog rises from the unfrozen river and sun draws it beautiful rays to patchy fog layers.
Thursday, December 1, 2011
Imaging laptop, software installation completed
Finally it is done !! All the required software is installed, last one was Nikon Camera Control Pro2. My Lenovo EDGE11 currently looks like this:
There is still some tweaking left for the used software, like defining imaging setup focal lenght, aperture sizes etc. Laptop has to be fitted in the rigid case, Pelican 1450.
There is still some tweaking left for the used software, like defining imaging setup focal lenght, aperture sizes etc. Laptop has to be fitted in the rigid case, Pelican 1450.
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