The Canon 5D Mark II is a full frame camera known for image quality and shallow depth of field, while the 7D is a crop sensor camera built for speed and autofocus. Choose the 5D Mark II for portraits, landscapes and low light. Choose the 7D for sports, wildlife and action. Both are older bodies, so confirm exact specs on Canon’s pages and check the condition of any used unit.
What Each Camera Is For
These two cameras came from different parts of Canon’s line. The 5D series targeted photographers who wanted a larger sensor in a body that stayed manageable. The 7D series targeted shooters who needed fast handling and a strong focus system, using a smaller APS-C sensor that also adds reach with telephoto lenses.
Key Differences
- Sensor size: The 5D Mark II is full frame. The 7D is APS-C, so lenses act about 1.6 times longer.
- Speed: The 7D shoots bursts at a noticeably faster pace, which suits action.
- Autofocus: The 7D has the more capable system for tracking moving subjects.
- Low light: The larger sensor in the 5D Mark II generally handles high ISO more gracefully.
- Depth of field: Full frame makes it easier to get a soft background at a given framing.
- Build: The 7D is known for a rugged feel and extra controls for quick changes.
Lens Considerations
Canon EF lenses fit both bodies, so you can share glass. Crop lenses made for EF-S only fit the 7D. On a full frame body, a wide lens shows its full field of view. On the 7D, the same lens crops in, which helps with distant subjects but makes wide scenes harder.
Quick Comparison
| Trait | 5D Mark II | 7D |
|---|---|---|
| Sensor | Full frame | APS-C |
| Strength | Image quality, low light | Speed, autofocus |
| Reach with telephoto | Standard | Extra from crop |
| Best for | Portraits, landscape | Sports, wildlife |
Used Buying Notes
Because both cameras are no longer new, most buyers find them on the used market. Ask for the shutter count when the seller knows it, check that all buttons and dials respond, and look at the sensor for dust. Test the card slot and battery too. A body that has been cared for can serve well for years, but condition varies a lot from one unit to the next.
How to Choose
- List what you shoot most often.
- If subjects move fast, weigh autofocus and burst speed first.
- If you shoot static scenes or people, weigh sensor size first.
- Check which lenses you already own.
FAQ
Can both shoot video?
Yes, both can record video. The 5D Mark II became popular with video shooters for its full frame look. Check the maker’s pages for formats and limits.
Are these still worth considering?
They can still make good images with the right lens and technique. Newer cameras offer features like better focus systems, so consider what you need.
The Short Version
Choose the 5D Mark II for image quality, low light and a soft background look. Choose the 7D for fast action and strong focus tracking. Your subject should decide.
