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static charge on the sensor when the camera is switched on. Removing the lens allows dust into the camera and this is attracted to the sensor. Again, at EOS magazine we change lenses with camera switched on and have not suffered any bad consequences. Mostly, though, we are changing lenses in areas which are relatively free of dust. We would be more careful outdoors in windy conditions. Another point thrown up by this thread is that some photographers turn their cameras off between exposures. This is not necessary and could lead to missed shots as the camera takes time to start up again when switched on. We try to remember to switch the camera off when it is put away, but that does not happen every time either. However, there is no need to change habits of a lifetime just because another photographer does things differently. If what you do works for you, carry on. Photo thief One forum member reported that an image he had posted on Flickr is now appearing all over the web without any credit or acknowledgement. Sadly, this is not uncommon. Some people appear to think that because a photograph is on the internet it is in the public domain and can be freely copied and used. Wrong. Laws of copyright apply equally to the web as elsewhere. The problem is that tracking down the culprits is much more difficult. And even if you get your pirated image removed from one site, it will probably reappear on several more. What can you do? One answer is never post online. If you sell your photos, check the security of a site before you post (can you download images from other photographers)? Never e-mail an image to a friend if you think they might post it on Facebook. Otherwise, treat piracy as a compliment – someone likes your work! Club directory The forum is a great place to chat to fellow EOS enthusiasts online, but it can be even better to meet up from time to time. Forum members organise occasional events, but camera clubs are also a great place to get together. EOS magazine is looking for clubs which have a good number of experienced EOS owners among their membership who would will willing to share their knowledge with new EOS owners. If your camera club or society qualifies, send details to editorial@eos-magazine.com and we will add you to the camera clubs page which will shortly be published on our website. Many years ago we supported local groups run by readers. These were less formal than camera clubs, often meeting at a local pub or organising local photo shoots. If you would like to start a local EOS group, let us know (same e-mail address as above) and we will be in touch with further details.

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Switched on? There is a thread running on the forum which asks if it is necessary to switch your EOS camera off before changing the CF or SD card, battery or lens. Here at EOS magazine we hardly ever do. That’s because we long ago discovered that the camera powers down the moment you open the card or battery cover. Canon has added microswitches to the covers to stop people like us doing damage by forgetting to switch the camera off at the main switch. The important rule to follow is never open the card or battery covers while the red access lamp is flashing. This lamp, situated near the card cover, tells you that data is being written to or transferred from the card. Interrupting this flow can corrupt one or more image files. This is a bad thing. However, the access lamp mostly flashes for a second or less after you press the shutter button. For the rest of the time it is dark, so the risk of corruption is slight. Changing the lens is a different matter. There is a school of thought which says that there is a

Above Forum members have been running an ‘End of Year Showcase 2012’. This has been ably organised by one of the members. Voting is now closed, but you can still see entries for a short while at: one of the entries in the ‘Landscape’ category. Andy Leslie shot it from one of his favourite viewpoints – the Pillow Mounds overlooking Carreg Cennen Castle, a few miles from his home in Llandybie, South West Wales. The November sunlight was fading as the autumnal sun sank into the west and he caught this shot, with his favourite combination, an EOS 7D and EF 70-200mm f4L USM zoom with an Extender EF 1.4x attached. The exposure was 1/1000 second at f5.6, ISO 160. http://bit.ly/WeEPVf The image above is

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colinC with 5702 posts

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