The Canon 6D and Nikon D600 are both early entry-level full-frame DSLRs from the same era, and in practice the best choice usually follows the lens system you already own or prefer. Canon offers a simple body with built-in wireless features, while Nikon offers a higher pixel count and a twin card layout. We have not used these cameras ourselves, so confirm exact specs on each maker’s page.
What each camera is for
Both were designed to bring full-frame photography to enthusiasts at a lower cost and size than flagship models. They suit portraits, landscapes, travel and general use. Neither is a dedicated sports camera, so expect modest continuous shooting compared with higher-tier bodies.
Key differences
- Mount and lenses: the 6D uses Canon EF and the D600 uses Nikon F. Lenses are not interchangeable without special arrangements, so this is the biggest factor.
- Resolution: the D600 offers a higher pixel count, which gives a little more room to crop.
- Card slots: the D600 has two card slots, which helps with backup or overflow. The 6D has one.
- Wireless features: the 6D includes built-in wireless transfer and location features that were uncommon at the time.
- Known concerns: some D600 owners reported dust or spots collecting on the sensor. Ask a seller about cleaning history if you consider a used body.
| Trait | 6D | D600 |
|---|---|---|
| Mount | Canon EF | Nikon F |
| Card slots | One | Two |
| Built-in wireless | Yes | No |
| Pixel count | Lower | Higher |
Who should choose which
Choose the 6D if you already own Canon lenses, like simple handling, or want easy image sharing to a phone. Choose the D600 if you own Nikon glass, want more cropping room, or like having two card slots for peace of mind.
If you own neither system, compare the lenses you would actually buy. Look at availability of used lenses, the range of primes, and the zooms you would use most.
Used-body checklist
- Ask for the shutter count.
- Check the sensor for dust with a small aperture and a plain bright surface.
- Test autofocus with a few lenses.
- Look at the mode dial, buttons and card door for wear.
- Confirm the seller offers a return option.
Think about the whole kit
A body is only one part of a system, so look at the lenses, flashes and accessories you would add over time. Check that the focal lengths you shoot most are easy to find in each mount, and compare the sizes of the lenses you would carry. Full-frame lenses can be large, so handling a few in a shop is worth the effort.
FAQ
Can I use Canon lenses on a Nikon body?
Not directly. The mounts differ, and adapters may limit function. It is simpler to stay within one system.
Which one is better in low light?
Both full-frame sensors perform well in dim scenes for their generation. Your lens aperture will matter more than the body difference.
The Short Version
Choose by lens system first. The 6D suits Canon users who like built-in wireless, and the D600 suits Nikon users who want more pixels and two card slots. Confirm exact specs on each maker’s page.
