Black-tailed Gull (Larus crassirostris, Goéland à queue noire, BTGU) October 21, 2005 Lake Champlain, Charlotte, VT, USA ©Christopher Dodds www.chrisdoddsphoto.com All Rights Reserved. Canon EOS 1D Mark II, 500mm F4 IS, Gitzo tripod and Wimberley Head. ISO 200, F7.1 1/1250s Manual Mode. Full Frame. Click HERE to order a print or license image for publication.
First used in the 1950s to describe the nervous behavior of Howard Medhurst, a British birdwatcher, a twitcher is a birder who travels long distances to see a rare bird and check it off, on a list. Previously known as "pot-hunter", "tally-hunter", or "tick-hunter", a twitcher’s main goal is to accumulate species on their bird lists. Some birders engage in competition to accumulate the longest species list. The act of the pursuit itself is referred to as a "twitch" or a "chase". A rare bird that stays put long enough for people to see it is "twitchable" or "chaseable".
I am not a "Twitcher", so I don't run off to photograph rare birds at the drop of a hat. I certainly wouldn’t go running off to Lake Champlain to try to find a Black-tailed Gull amongst the thousands of Ring-billed Gulls that are typically found there; Lake Champlain is huge; it would be like finding a needle in a haystack. On October 21, 2005, I was on my way to Dead Creek Wildlife Management Area to photograph Snow Geese, when I got a call from a friend telling me about this rare Asian visitor in Charlotte, Vermont. I laughed when I heard that it was "along the shore of Lake Champlain", but decided that I would stop by for a look on my way to Dead Creek WMA. Not hopeful, I assembled my camera and set the exposure in manual mode and then headed for the water's edge where at least 50 birders had gathered. I set-up my camera in manual mode and started to eat a sandwich, when there it was. The image above was one of about thirty that I took within the first ten minutes of my arrival. I changed my plans and stay put, but the bird didn't re-appear that day. Great fun was had exchanging stories with the many birders present - the images were a nice bonus too.
| Service Notice: EOS 7D: Residual Image in Picture |
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| Thank you for using Canon products. We have confirmed that in certain camera settings and shooting conditions, the phenomenon described below may occur in images captured by the EOS 7D Digital SLR camera. Canon is currently investigating and analyzing the cause of this phenomenon, and we are planning to release a firmware update to address this issue. Once the support measures have been established, we will post the relevant information on our Web site. We offer our most sincere apologies to customers using this product who have been inconvenienced by this issue. Going forward, we will spare no effort in our quality management to make sure our customers can use our products with confidence. We hope our efforts will earn your understanding. Phenomenon In images captured by continuous shooting, and under certain conditions, barely noticeable traces of the immediately preceding frame may be visible. This phenomenon is not noticeable in an image with optimal exposure. The phenomenon may become more noticeable if a retouching process such as level compensation is applied to emphasize the image. Affected Product EOS 7D Digital SLR Support This contact information is for residents of the United States and Puerto Rico only. If you do not reside in the USA or Puerto Rico, please contact the Canon Customer Support Center in your region. Thank you,
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Comments welcome & appreciated.