Canon 450 Views

Electronics

The EOS 450D (called EOS Rebel XSi in North America and EOS Kiss X2 in Japan[1]) is a 12.2-megapixel digital single-lens reflex camera that is part of the Canon EOS line of cameras. It is the successor to the EOS 400D/Digital Rebel XTi. It was announced on the 23 January 2008 and released in March 2008 and April 2008 in North America.[2][3] It was superseded by the Canon EOS 500D (Rebel T1i in North America) which was announced on 25 March 2009.[4]

No replacement filter: If the original Canon IR Cut filter is removed and replaced with nothing, the camera's autofocus and optical viewfinder will not work. Since the 450D and 1000D have the live view focusing feature, using it instead would work well for astro imaging using a telescope. Some camera lenses may not be able to focus at infinity for astro imaging.

Precautions are taken during the modification process to avoid dust particles. Very minor dust motes may occur on the modified camera and these can be removed completely by using flat fields. These are usually due to coating imperfections of the Baader DSLR UV/IR filter. For normal daytime photos, if they are noticeable, they can be completely removed using the "dust delete datas" function of the 450D and 1000D. The filter designated by Canon as the n"Low-pass 1c" filter will be left in the camera unaltered for the Baader astro modification. It is an anti-aliasing filter that Canon is using as a dust cleaning surface and is explained on Canon's web site as follows:

Gary modified my Canon 450D (EOS XSi) this past year. His work was excellent, and turnaround was fast. He is very thorough in his work. He takes the time to make test images both before and after modifications to insure that autofocus, dust spots and exposure control are unaffected by his work. In my case, Gary had the camera fully modified in under three days, then delivered the modified camera to me in person at a local star party. He spent a few hours with me for first light exposures, teaching me technique and the intricacies of effective astrophotography. I look forward to many more years of Garyy’s advice and guidance as I learn this exciting new hobby. I would definitely recommend Garyb’s work to anyone not wishing to tackle a camera modification by themselves.