Below is a detailed review of the Canon 600D vs Canon 6D, one being a Entry-Level DSLR and the latter is a Advanced DSLR and both are created by Canon. The image resolution of the 600D (18MP) and the 6D (20MP) is pretty close but the 600D (APS-C) and 6D (Full frame) provide different sensor measurements. I took the second picture with the Canon EOS 6D a Full Frame sensor with a crop factor of 1.0 (no change from 35 mm). I had the 24-105 mm lens attached with zoomed in to 24 mm. Both cameras were set at 24 mm, but the crop factor on the Oly was a true 48mm focal length due to the crop factor. Still Photo Cropping/Aspect Ratio. Normally with RF or EF lenses, images are captured at the sensor size of approx. 35.9×23.9 mm in full-frame shooting, but in cropped shooting, you can isolate and magnify the center of the image approx. 1.6× ( APS-C size) as if using a telephoto lens, or you can set an aspect ratio as needed before shooting. Focal Length Measurements and Field of View. Full frame cameras have a fixed 35mm sensor. On the other hand, crop sensors can have varying dimensions, including 23.6mm x 15.6mm, 22.2mm x 14.8mm, 18.7mm x 14mm, 17.3mm x 13mm, and 8.8mm x 6.6mm. The difference in focal length also depends on the multiplier. In crop mode the 50D can do 3.8x crop 1080p in approx. 16:9 aspect ratio. This camera is DIGIC IV so lacks 10bit raw support. 6D. 1792 x 762 – full frame (10bit 2.35:1) 1600 x 864 – nearly full frame 1.14x crop (10bit 1.85:1) 1536 x 864 – nearly full frame 1.19x crop (10bit 16:9) 1536 x 642 – nearly full frame 1.19x crop (14bit 2.39:1) The best of the EOS R5 plus the power of a Cinema EOS camera. • 8K/60P RAW Cinematic Video. • 45 MP Full-Frame, CMOS Sensor. • Still-Image Continuous Capture. at up to 20 fps. • Dual Pixel CMOS AF II Capability. Learn More. Personally, I would not use the 6D. I currently use the 7D and have been having a great success with this camera. I will be upgrading to the 5D mark III in the next two months. The 6D does not have the shutter speed needed for a high percentage of keepers. I have use my 7D with the 70-200 2.8. Pictu However, Canon claims that it delivers low-light performance to match the EOS R6’s 20MP chip, with a standard sensitivity range that runs all the way from ISO 100 up to ISO 102,400 and is extendable to ISO 204,800. Canon has built the EOS R6 Mark II with an all-new 24MP full-frame sensor. Image credit: Andy Westlake. We can compare the 7D II to the Canon EOS 6D, the cleanest full frame camera that Canon produces, albeit two years older. (Not counting the Canon EOS 5DS, since it has a different purpose). And the 7D Mark II is just a hair noisier. But being noisier than its full frame brother is just physics at play. The pixel size is smaller. So it gathers Crop cameras are often used for sports or wildlife photography, where extra magnification is helpful. Anyway, the Canon 6D and the Nikon 600D are the introductory full frame cameras from those brands. You might want to consider them as options. Nikon and Canon both make great equipment so either will be a good choice (although the newly lt9YbS.