Focus Check: To check if the modified camera is achieving perfect focus, the camera's focus can be easily tested.
Press the key to select OK, then press.
Set the power switch."Live view" focusing works well for astronomy since the object being imaged is stationary and can be magnified (zoomed in) to check for precise focus.There are two "live view" focusing modes on the 450D, "live view manual focus" and "live view auto focus".Peltier Cooling: Peltier Cooling Systems Test Results.If a smudge that cannot be removed with a blower remains, having the sensor cleaned by a Canon Service Center is recommended.Canon Digital Rebel XSi (450D XS (1000D T1i (500D) T2i (550D) Modification Instructions by Gary Honis, removal of IR Cut Filter for Astrophotography.Use the camera's time delay setting of at least 2 seconds to avoid any blurring from camera shake.Select one of these images as the "control" focus test image.
My post-modification test results are shown below: Manual focused a pdf image to pdf 5.1.6 serial key test image using liveview at 10X magnification: Auto focused test image: The test images above show that good focus and tilt has been maintained in the modified camera.
Peltier Cooling: Peltier Cooling System Detailed Assembly Instructions Peltier Cooling: Temperature Control Models Compared : Dark frame noise and sensitivity testing of various dslr models Astro Images: Astro images with the modified 450D Modification Service: Low cost modification service for your 450D, 1000D, 500D 550D.The new features on the Rebel XSi include Canon's EF-S 18-55mm,.5-5.6 IS zoom lens, and a 3 inch LCD screen on the back.If the power is cut off, the shutter will close and the shutter curtains and image sensor might get damaged.For a Full Spectrum modification with an Astronimik MC Clear Glass replacement, reshimming or sensor adjustment is required and focus tests should be made.Wikipedia: Canon EOS 450D, view Statistics: Past 24 Hours: 5, past 7 Days:.Since you have focused the test chart using liveview, which shows on the camera back LCD display exactly what the imaging sensor is capturing, this is the best focus that can be achieved with that lens.Print, print page 1, rename the bookmark, delete from my manuals?Page 14 : Daytime Infrared Hoya R72 Filter, modifier Comments : Comments From Others That Have Done the Modification.The digic image processor on this model allows for fast and accurate image processing, and an improved autofocus and framing rate comes standard with the Rebel XSi.
This is because of the stacked multi-filter arrangement of the self cleaning filter/imaging chip assembly that can be seen Here.
Atkins also provides a focus test chart Here if you wish to use it as I did for the focus tests below.