Canon 450D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor . On the other hand, Canon 350D has a
8.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the 450D and 350D sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 450D and Canon 350D Cameras
Canon 450D and Canon 350D have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Canon 350D has 52% larger pixel area (41.28µm 2 vs 27.00µm 2 ) compared to Canon 450D, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Canon 450D and Canon 350D sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, 450D has scored 61, 1 points higher than 350D.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 450D
61
21.9 bits
10.8 Evs
692 ISO
Canon 350D
60
21.8 bits
10.8 Evs
637 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon 450D
or the
Canon 350D ,
including hyperfocal distance.
