George Preoteasa

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  • in reply to: Optical Phenomena Volume III #317949
    George Preoteasa avatarGeorge Preoteasa
    Participant

    And while on this thread, a halo I captured on a hike last weekend. BTW, I finally caved in and subscribed to LightRoom. Wink-wink.

    IMG-1205

    in reply to: Optical Phenomena Volume III #317938
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Very interesting and beautiful picture, Hans. I have been looking out for this phenomenon. So far no luck.

    There is another phenom that I notice, maybe related. The sky is red/pink on the opposite side of the sunset or sunrise. Not much at 90 degrees. When I search for anticrepuscular, I only get “anticrepuscular rays”. How about anticrepuscular light.

    Here is one shot. Notice the very clear sky.

    anti_sunset_light

    in reply to: Contrail Thread Volume IV #317933
    George Preoteasa avatarGeorge Preoteasa
    Participant

    On the mysterious star subject, google “skywriting” and click images to see possibilities. I did not see a star, like Don’s, but I have seen other pretty complicated designs.

    in reply to: Contrail Thread Volume IV #317327
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Texas, right? The lone star state.

    in reply to: Sunsets and Sunrise Vol III #316133
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Thank you for letting me know, Hans, I would have missed that. I am thrilled. And thanks to whomever picked it.

    in reply to: Sunsets and Sunrise Vol III #314347
    George Preoteasa avatarGeorge Preoteasa
    Participant

    This picture makes me think of the saying “red skies in the morning, a sailor’s warning, red skies at night, a sailor’s delight.” Very nice, Hans!

    in reply to: Sunsets and Sunrise Vol III #314219
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Wow, like fingerprints!

    in reply to: Wave Clouds Volume II #311911
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Thank you Keelin, that means a lot coming from you.

    Very nice deep blue ocean shot, I can see the surfers riding the wave.

    in reply to: Wave Clouds Volume II #310808
    George Preoteasa avatarGeorge Preoteasa
    Participant

    A different interpretation of clouds that look like waves.

    _A001236_ce2

    George Preoteasa avatarGeorge Preoteasa
    Participant

    Laurence and Keelin, thank you for your wishes ad advice.

    George Preoteasa avatarGeorge Preoteasa
    Participant

    Don, I am very grateful for all he advice you’ve given me.

    in reply to: HALOS AND RAINBOWS VOLUME II #308567
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Beautiful shots, Hans and Keelin.

    George Preoteasa avatarGeorge Preoteasa
    Participant

    Thanks Don, these are very useful details. But I am still curious. Can you describe your steps when taking the pictures? What I mean, for example: you are inside (or in a tent or a car) where it’s not terribly cold. You put your camera on the tripod, probably turn it on and make some adjustments. Then you step out and find a scene. How long would you be out? How long did a battery last? (I have three, do I need more?) You’re saying that  the camera itself was not affected by the temperature, so I guess you did not try to warm it up with chemical hand warmers. I wonder if you can shoot for 10 minute of for 30 or 60 minutes.

     

    Thanks again for your advice.

     

    in reply to: HALOS AND RAINBOWS VOLUME II #308402
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Nice iridescence, Hans. The white clouds on the left look like the foam breaking waves leave on the beach.

    The first rainbow picture above is pano that I had to risize a lot to get it under 3MB. But I have others, all taken with an iphone, so same focal distance, but different exposure. It will not be a great piece of art work, but I hope it will give a sense of the scope. That is whenever I get some time to learn how to do that :-)

    in reply to: What are these clouds? #308190
    George Preoteasa avatarGeorge Preoteasa
    Participant

    Just a note that all cumulus clouds (in a given situation) have the base at the same height. Cumulus clouds form by convection (large rising bubbles of air) and undergo a cooling process. When they reach a certain temperature, the vapor starts to condense, therefore the clouds form. Because the air mass is rather uniform, any of these “bubbles” will reach that temperature at the same level. And, as Hans says, the stacking effect is just a perspective effect.

Viewing 15 posts - 91 through 105 (of 353 total)