topic Canon EOS R10 or (used) EOS 5D Mark IV in EOS DSLR & Mirrorless Cameras

Canon EOS R10 or (used) EOS 5D Mark IV

kalanfuga — Fri, 08 May 2026 05:51:20 GMT

Hi everyone,

I’m considering upgrading my old Canon EOS 750D setup and would really appreciate some advice.

Right now I’m torn between the Canon EOS R10 and a used Canon EOS 5D Mark IV with a fairly low shutter count (under 30,000). Both options are available at roughly the same price.

I mainly shoot nature and wildlife photography, especially birds, along with the occasional family event and vacations. I haven’t explored video much yet, though I might in the future with the right setup, so video performance isn’t my top priority.

Which option would you recommend for my use case, and why?

Thanks in advance!

Re: Canon EOS R10 or (used) EOS 5D Mark IV

p4pictures — Fri, 08 May 2026 08:56:24 GMT

Firstly let me say I have the EOS R10 and previously owned the EOS 5D Mark IV so I feel I have some background to this.

EOS 5D Mark IV

The best general purpose DSLR camera that Canon will ever make
30MP stills, great for most needs
Full-frame sensor
Capable AF when well setup for the subject being photographed
Dual card slots - 1x CF card, 1x SD card
4K video - crop mode only
EF lenses only can be used, not EF-S or RF. No more EF lenses will be introduced
Larger and heavier than EOS 750D
Uses LP-E6 type batteries, greater battery life

EOS R10

Entry / mid-range camera in the R-series, based n EOS R7
24MP stills, enough for many needs
Intelligent AF for easier tracking of moving or potentially moving subjects
Single SD card slot, supports faster UHS-II cards
4K video using full sensor, plus 4K 50/60 fps with additional crop
EF / EF-S / RF / RF-S lenses can be used - use your existing lenses with adapter and then transition to RF / RF-S versions. RF-S 18-150mm kit lens is a great all-purpose choice
Smaller and lighter than EOS 750D
Uses same LP-E17 batteries as EOS 750D, similar battery life too

Personally I would go for the EOS R10 at this point in time. It gets you in to the R-series models, works with your existing lenses via the EF to RF mount adapter and offers more capability and features than your current camera.

Re: Canon EOS R10 or (used) EOS 5D Mark IV

SignifDigits — Fri, 08 May 2026 10:23:47 GMT

My colleague is the expert here, but I would agree and add the R10 for the following reasons in your use case:

Although you're giving up pixels, the APS-C sensor give you an effective 1.6x boost in focal length. More real image on the sensor is better than cropping every time.
Mirrorless is great. What you see really is what you get.
Electronic and silent shutter is super nice to have when shooting family
7frames per second vs 15 fps on the R10 means the R10 wins here - you EF lenses may or may not be able to fully support this, but if they do this really helps with birds and wildlife
You're futureproofing by moving to mirrorless and RF lenses over time