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hadi_khademi

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Posts posted by hadi_khademi

  1. <p>Ken,<br>

    Thanks for your comment on the young horse photo. It was a beautiful day I truly enjoyed the photoshoot. I also liked the series of photos you used to post from ferry across the bay. It was interesting to see how you can see the otherwise ordinary commute, with a phographic eye.<br>

    Cheers, Hadi</p>

     

  2. <p>I apologize to Nathan about posting twice but since question came up you get the point! <br /> I have the same lens and I like it very much. There is more than one way to get ride of the shadow. A simple way to do it, without globally affecting the image, is to use the Heal and Clone Stamp in PS CS4 or newer. Few minutes and you will have one like this.</p><div>00YgpS-355913584.jpg.4e35ec2086e089398921611e1b2d61fc.jpg</div>
  3. <p>Hello everyone,<br>

    Great photos this week; hawk by Dan, Osprey by Robert, Karen's daughter, (tree?) swallow by Nathan to name a few.<br>

    Last Sunday I was able to get out and shoot some pictures of the birds and this is one of the better ones.<br>

    Regards,</p>

    <p>Hadi</p><div>00Ydu2-352887584.jpg.88f17ba249481726ee203dbb831006a6.jpg</div>

  4. <p>Here is more information I found on <a href="http://www.batteryuniversity.com">Battery University</a> website concerning Lithium batteries.</p>

    <blockquote>

    <p>Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges (like Canon LP-E6) exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.</p>

    </blockquote>

    <blockquote>Batteries with fuel gauge should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.

    <p>Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.</p>

    </blockquote>

    <blockquote>Do not buy old stock, even if sold at clearance prices.</blockquote>

    <blockquote>f you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.</blockquote>

    <p>Based on this info I think calibration of the battery (fully discharging and recharging) is the right step to take and see what happens. The only caution to take is avoid letting battery sit for long time while fully depleted.<br /> Hadi</p>

     

  5. <p>Harry,<br>

    Are you using Live View a lot while shooting? This thing alone can drain the battery fairly quickly. Another thing I never turn my 7D off (except when replacing the battery, memory card or switching the lens) but I don't think this can affect the battery much. Also there is a general rule for all rechargeable batteries that the first time you put those to use you charge in full. Then use it until it's completely drained. Then recharge in full right away and repeat the cycle; avoid recharging a half full battery. This enables the battery to reach its full potential. The first few cycles are extremely important and set the stage for battery's long term performance. I have had brands like Energizer performing really poor because of not following this simple rule. On the other hand I had less know brands outperforming Energizer by 40-50%. One final note is using auto focus feature; the motor in the lens is using the battery power a lot and you might want check that too.<br>

    Hope this helps, Hadi </p>

  6. <p>Jennifer,<br>

    Based on your intended use of the equipment (Portrait, event and wedding photography) you may be better of buying 60D instead of 7D hence saving at least 600 bucks on the body (perhaps buying a 580EX II with flash diffuser and some left over!). I have 7D and it is a fine camera with some features like 8 frames/sec that you don't need for event photography. On the other hand a fast lens is a must for your intended application and it better be EF so you can use it on your full frame camera (whether you buy or rent the body) too; which leads you to 24-70 f/2.8. The idea of buying a used 50D seems plausible; I have heard rumors (even in a recent PN forum) that 5D MK III is in the Canon's pipeline. Buying 50D will give you enough time to get the right equipment. When you get that you can still keep the 50D as a fine backup camera for another 2-3 years.<br>

    Good luck,<br>

    Hadi </p>

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