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Home โ†’ Reviews โ†’ Cameras and Lenses โ†’ Canon EOS Rebel T7i / 800D Review

Canon EOS Rebel T7i / 800D Review

By Spencer Cox 9 Comments
Last Updated On January 31, 2021

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Image Quality

The Canon T7i has the updated 24.2-megapixel sensor found in Canon’s newest crop-sensor cameras. The sensor has won praise for improving upon Canon’s earlier dynamic range shortcomings (falling short of Nikon, Sony, and Fuji in terms of shadow detail at low ISOs).

Black and White T7i Example Shot
The new Canon sensor has enough dynamic range to capture extreme highlight and shadow detail simultaneously.
Canon EOS Rebel T7i + EF-S18-55mm f/4-5.6 IS STM @ 18mm, ISO 100, 1/400, f/5.6

The reality is that the images from the T7i still have a bit more noise and less dynamic range than competing cameras on the market, landing about one stop behind the best crop sensors available today. But the obvious question is whether this difference is enough to notice in photos, and whether or not it will be a problem for most photographers.

The short answer to both questions is no – photos from the Canon T7i are just fine. But before looking at comparisons on the next page of this review, here is a set of photos demonstrating the T7i at different ISO values, from ISO 100 to ISO 25,600. Note that these are extreme, 100% crops:

Canon-T7i-ISO-100Canon-T7i-ISO-200Canon-T7i-ISO-400

Canon-T7i-ISO-800Canon-T7i-ISO-1600Canon-T7i-ISO-3200

Canon-T7i-ISO-6400Canon-T7i-ISO-12800Canon-T7i-ISO-25600

As you can see, the T7i’s photos are still quite good at ISO 800, and ISO 1600 is usable as well. I would generally avoid ISO 3200 on this camera, except in extreme circumstances. ISO 6400 (as well as the extended ISOs above it that you can unlock in the menu) are not particularly useful unless you have very special requirements, as you can see from the three bottom photos above.

High ISO Cityscape
Taken handheld at night with the kit lens at ISO 1600. Looks good to me.
Canon EOS Rebel T7i + EF-S18-55mm f/4-5.6 IS STM @ 18mm, ISO 1600, 1/10, f/4.0

On the next page of this review, you will see how the T7i stacks up against other cameras on the market, including an in-depth image quality comparison with the Nikon D5600.

Table of Contents

  • Overview and Specifications
  • Autofocus Performance
  • Image Quality
  • Comparisons
  • Conclusion
  • Reader Comments
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