Underwater Photography

OM System EM10 IV vs Canon R100 vs Canon R10

I’ve decided to write this article during the Black Friday rush.  I’ve spoken to many that are considering to upgrade their camera to mirrorless this weekend and the “affordable” mirrorless category is a popular choice.

I’m going to compare 3 cameras here:

OM System EM10 IV – bundle with AOI housing costs $1,398

Canon R100 – bundle with Ikelite housing costs $1,650

Canon R10 – bundle with Ikelite housing costs $3,295

All three housings are very compact and the kit lenses are pretty similar.  The EM10 IV comes with a 14-42mm lens and the Canon’s with a 18-45mm lens.

EM10 IV in the AOI Octo Underwater Camera Housing Pkg
EM10 IV in the AOI Octo Housing

Canon R100 Underwater Housing package
Canon R100 in the Ikelite housing with Dome

Canon R10 Underwater Housing package
Canon R10 in the Ikelite housing with dome

The biggest and most notable difference between the OM system and Canon is that in the case of the EM10 IV the housing comes with flat port that supports wet lenses (and you can add both a wide and macro lens).  The Canon’s come in an Ikelite housing that only supports the kit lens behind a dome and that means no wet lenses.  If you want macro, you’re going to have to get an additional lens (like Canon 100mm) and port which now makes this combination not so affordable.

The advantage of the Dome and therefore the Canon’s is that for wide angle and all around photography, the lens/port combination is much better out of the box from the EM10.  This is because a dome port gives you 25% more magnification and a sharper image so your kit lens, the 18-45mm functions under water the same as it does above water.

Ok, now let’s compare the cameras.

Specification OM System EM10 IV Canon EOS R100 Canon EOS R10
Model Olympus OM-D E-M10 IV Canon EOS R100 Canon EOS R10
Resolution 20.30 Megapixels 24 Megapixels 24 Megapixels
Sensor Size 4/3 (17.4mm x 13.0mm) APS-C (14.9 × 22.3 mm) APS-C
Kit Lens Zoom 3.00x (14-42mm, 28-84mm eq.) F4.5-6.3 IS (18-45mm) F4.5-6.3 IS (18-45mm)
Native ISO 200 – 25,600 100 – 12,800 100 – 32,000
Extended ISO 100 – 25,600 Up to 25,600 Up to 51,200
Shutter Speed 1/16000 – 60 sec 1/4000 1/16000
Weight (with Kit Lens) 1.05 pounds 0.78 lbs 0.93 lbs
Image Stabilization 5-axis, up to 4.5 stops No IBIS No IBIS
Autofocus System 121-point contrast-detect 143 zones (stills) Unknown
Continuous Shooting Speed Up to 15 fps 3.5/6.5 fps Up to 23 fps
Video Capability 4K/30p, 1080p up to 60p 1080p up to 119.98 fps 4K up to 60 fps
Connectivity Wi-Fi, Bluetooth Mono mic, 3.5mm stereo Unknown
Battery Life 360 shots 370 shots 450 shots
Charging Port Micro USB USB-C USB-C PD power

Since the Canon R10 is a significant jump in price from the other two, I feel that I need to explain why that extra investment may be worth it.

Does the Canon R10 justify the extra dollar?

If you have to choose between this upgrade or lights, I would certainly choose lights so please only consider this upgrade if you can afford both.

The Canon R10 has Canon’s new auto focus system and the R100 was left behind.  This means the R10 has a huge advatange in terms of the speed and accuracy of the auto focus and thats major.

This is a result of the R10 having Canon’s new sensor which also affects its image quality and low light capabilities.  Basically, the R100 is a new version of the older M50 so while it is branded as a new model in Canon’s line up, the electronics inside are the older models.

Bottom line, definitely worth the extra $800-$1000 but only if you don’t have to give up lights which I always say are the most important thing to get good photos and videos.

Is the Canon R100 better than the EM10 IV?

Yes

  • Because it has a larger sensor and that usually means better image quality.
  • It is also much lighter and very small in size.

No

  • The EM10 IV has built in Image stabilization
  • The Octo housing allows shooting macro with a simple addition of a diopter and allows shooting great wide angle with an additional wet wide angle lens.
  • The EM10 IV has much higher max shutter speed and supports much faster continous shooting. It also has a higher max ISO although the R100 is expected to have better image quality at the high ISO ranges.

Bottom Line

Not an easy choice to make and probably a very personal one but I hope this article has enough information to help you make that decision.

Mari Herrarte
Follow Me

Author

  • Mari Herrarte diving with an underwater camera rig before adding buoyancy floats
    Mari Herrarte, underwater photographer and diver

    About the Author

    Mari Herrarte

    Mari has been diving for 15 years and loves spending time in the ocean, surrounded by nature. She is also passionate about photography and capturing the beauty she discovers underwater.

Leave a Reply

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload the CAPTCHA.