Canon's first compact camera system (CSC) model has been an absolute age coming and, as the 18 megapixel EOS M arrives a full four years after some rivals' first, it has high expectations to fulfil.

Smaller, more portable body than many competing models; Compatible with a wide range of accessories from the world's biggest camera brand; Combination of sensor and Canon's optical excellence delivers sharp images that don't disappoint

Have to buy ￡130 adapter for access to wider range of Canon EF lenses, so-so battery performance; Lacks a decent handgrip for a steady hold with longer optics; No optical or electronic viewfinder built-in

Canon's EOS M is its first ever CSC and comes with use of 70+ lenses via optional adapter, though it will satisfy consumers more than enthusiasts. Read our Canon EOS M review to find out more - REVISED 17 APRIL 2013

However, the M is let down by its AF system and its unbalanced feel that stems from it not having a decent grip.

When the first rumors of the Canon's mirrorless camera started circulating on the Internet, I was dying to see how Canon would respond to the Nikon 1 system. I wondered if Canon would release a small sensor mirrorless like Nikon, or go with a bigger sensor and a bigger mount.

Image quality as strong as you'll find from a DSLR, but dithering autofocus and awkward ergonomics spoil the venture

Canon has thus far resisted the lure of the halfway house, waiting four years longer than rivals such as Panasonic to deliver a mirrorless camera with interchangeable lenses. Has the time been spent wisely, waiting for others to bash the kinks out of the format before arriving with a market leader?

If you really want a compact shooter that will work with your existing Canon lenses, the EOS M delivers with caveats. For everyone else, wait if you can.

Solid construction; The use of Canon's full line of lenses (via optional adapter; DSLR sensor; Great image and video quality

Slow autofocusing system; Time-consuming settings adjustments; No viewfinder

Many a fan of Canon have eagerly waited for the company to release the EOS M camera. It has been four years since the mirrorless interchangeable-lens camera (MILC) revolution and most major DSLR makers have released their own MILC model.

Accepts Canon EF and EF-S lenses via adaptor; compatible with Canon external flashes and accessories; touchscreen interface works well

Slow autofocus speed; rubber grip not big enough

It was late on the scene but its arrival still surprised many. After all, it is four years since Panasonic...

I liked the Canon EOS M more than I expected -- but less than I should have. It's got a compact, well-built and well-designed metal body, and a responsive touch screen with a streamlined interface, and it delivers the photo quality you expect from this class of camera.

With a very nice touch screen; a well-designed body; and excellent photo quality; the Canon EOS M has some attractive qualities

Seriously poor autofocus performance and battery life detract from the overall package