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NimArt

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Posts posted by NimArt

  1. I am pretty sure the Canon 1Dx series camera and most L series lenses can withstand the cold weather. Other prosumer grade like 5D, 6D and 7D series may too. I took my 5D II with two lenses, 17-40 and 24-105, to Fairbank and Arctic Circle in Alaska, and another trip to Iceland, all in lower than minus 35 degrees. I had no problem at all. Just make sure you have extra batteries with you and keep them warm, do not change lens outside, put your gear in a plastic bag before entering warm places to keep condensation forming on your gear and most importantly, keep yourself warm. Hope this helps.
  2. Hi everyone

     

    Can anyone introduce me some Canon gears for very cold weather like minus 30 degrees , please? I need to take some picture in Russia,and as you know it has a very very cold weather specially at nights. I need to buy a Canon camera to endurance in that cold weather. please help me to find one.

    Nima

  3. <p>Hi everyone<br>

    I'm not sure if I choose the proper category for my question or not..<br>

    The thing I want to know is about 18% gray card<br>

    Can you please inform me the defenition of 18%gray card<br>

    actually I know the defenition in theory [An <em>18 Percent Gray Card</em> is a simple gray-coloured card which uniformly reflects 18% of the light which falls upon it. Gray cards can be used as a reference to set the camera exposure or to calibrate a light meter ]<br>

    But my main question is that why it is called 18% gray if it is the -middle gray-and why it is not the 50% ?<br />I mean what is the 18 % ?<br /><br />thanks in advance<br>

    Nima</p>

  4. <p>Thank you ALL of you very much for the comments.<br>

    @Greg: yes, I did it before; I disabled the pop up flash and then try to shoot, but at this time the slave ( 480EXII ) doesn't flashes and it flashes only when the pop up flash flashes and either they can see each other, otherwise the 480EXII doesn't work as a slave.. thank you..</p>

  5. <p>Thank you very much ALL of you for useful suggestions.<br>

    @Wayne: I did it, but still the built in flash will shoots and my problem is that i don't want it to shoot, i only need the external flash to shoot. Thank you<br>

    @Philip: Thank you and yes, I think its better to use some card or tissue to soften the harsh light , but sometime the tissue or card is avoiding the camera to sync with the external flash and it doesn't shoot..</p>

    <p> </p>

  6. <p>Hi everyone</p>

    <p>I have got a Canon 7D with a Canon 430EXII speedlite.<br /> As you know the speedlite can sync with the camera, but my problem is that when you sync the speedlite with the camera ,the pop up flash of the camera shoots as well as the external flash..<br>

    Does anybody knows ; How can I turn my pop up flash off while I use the extenral flash to shoot?</p>

    <p>Thank you in advance<br /> Nima</p>

  7. Hi

    But I really think the IS has no mean , I have a 70-200LF4 IS USM on 7D

    ok, you if you shoot at 200mm ( on my camera 320 ) you need to be at 1/200 sec or more than that for proper and fixed ( sharp ) image, then in that speed you won't need IS , cause the speed itself make the image to be fixed. and if you shoot at 200mm but lower than 1/200sec shutter speed then as I take it the IS won't help you to fix the scene, or just in some few moments..

  8. <p>Hi every one<br>

    I have a Canon 7D with 70-200Lf4 lens, and I just wanted to know about the extendertubes, witch are x1.4II and x2II and as you know in x1.4 I lose 1 stop and x2 lose 2 stops.<br>

    But I want to know despite of losing two stops in x2, do I lose the quality in the picture as well? and which one is better than the other one? x1.4 or x2 ?<br>

    I just want to know how is it to use teleconvertors? many thanks for your answers.</p>

    <p>thank you in advance<br>

    Nima</p>

    <p> </p>

  9. Hi all

     

    First I should say that I have Canon 7D with 17-40L,f4 and 70-200L,f4.

    My question is that:

    Imagine for instant you want to shoot at a fashion show ,who the models are walking toward you and get back one

    by one, now my question is that :

    1. Which shutter speed is the proper speed for the human who is walking to freez the movement ?

     

    2.Which autofocus mode do you suggest for the proper and very good focus on the models who are walking toward

    you, to freez their movement ?

    I used the 70-200 lens with f/4 and the shutter speed between 160-200 sec,and ISO 200, but some of my photos has

    not the good focus and freezing at all, but some has .

     

    thanks in advance

    Nima

  10. <p>Hi<br>

    Actually I didn't know in which category should I post my question,<br>

    I captured the photo as attachment ,in late afternoon with my Canon 7D and 70-200L f4 lense , F:4 @1/50 sec. ISO:160.<br>

    Would someone please describe me what are those blue lines over all branches the photo when I crop it in 100%?<br>

    I think its the reflection of the blue sky but how can I get rid of it with my camera, or maybe should I edit it in photoshop?</p>

    <p>thank you in advance<br>

    Nima</p>

  11. <p>Hi<br>

    Actually I didn't know which category I should tell my problem.<br>

    First : I have a Canon 7D with 70-200Lf4 ,17-40L f4 and a 50mmf1.8<br>

    I have moved to Bangalore-India from Tehran- Iran and my problem is that this city has a lot of humidity, many rains and although the sun is shining it has a lot of humidity<br>

    I wanted to know if the humidity caused my camera and lenses damaged or not and if so; how could I save them from the moisture.<br>

    For sure when I am at the town or somewhere else for shooting some photos there is no way to protect my camera from the moisture,BUT when I am at home and my camera and lenses are in them bags; Is there any way to save and protect my camera from the moisture?<br>

    your thoughts are so appreciated</p>

    <p>thanks in advance<br>

    Nima</p>

    <p> </p>

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