Camera test:

Canon 5d-Mark III + Canon telephoto 70-200mm f/2.8 IS USM Mark II versus Canon 100D (Rebel SL1) + kit lens 55-250mm IS USM f/5.6.

You might remember my last blog post about swapping my Canon 5d-Mark III to the smallest/cheapest entry level DSLR Canon 100D (Rebel SL1) camera. I also downgraded my lenses system from Canon telephoto, Canon 70-200mm IS USM f/2.8 Mark II, Canon 24-70mm f/2.8 to Canon kit lenses Canon 18-55mm f/5.6 and Canon 55-250mm IS USM f/5.6. See the blog and more images here:

Following my downgrade, there were many statements, comments, and people expressing their opinions in different ways – some more controversial than others.  So, I decided to shed some light on this matter. 

A couple of weeks ago I ran a Speedlite photography workshop, outdoor, on location. Some of my students were using the Canon 5D Mark III cameras and the more expensive Canon lenses so I decided to do some tests with the 2 systems:  Canon 5d-Mark III versus my current entry level DSLR Canon 100D camera (Rebel SL1) and the lenses too.

I quickly produced a (rather tricky and challenging) lighting setup which usually can give some serious trouble to the photographer and the equipment (particularly the lenses) with a view to test the 2 systems and see how they would perform. 

After I finished the lighting setup I took 2 images with the same lighting and same composition with the 2 systems (I tried to keep everything exactly the same so that the test will be relevant and fair). The equipment used was: 

Canon 5d-Mark III + Canon 70-200mm IS USM f/2.8 Mark II


Canon 100D (Rebel SL1) Canon 55-250mm IS USM f/5.6

The results are shown below, I will not say which one is which; I will leave it with you to guess. The EXIF data of the both images is:

– Exactly the same lighting setup/model posing/framing.
– ISO 100 – both images.
– Shutter speed 1/60th – both images. 

Focal lenght: 
Canon 55-250mm IS:                 @ f/5.6 – zoom 109mm
Canon 70-200mm IS Mark II: @ f/2.8 – zoom 150mm 

Now the question is: can you guess which image was taken with Canon 5d-Mark III and which one was taken with Canon 100D (Rebel SL1)?


Camera lenses test: Canon 5d-Mark III + Canon telephoto 70-200mm f/2.8 IS USM Mark II versus Canon 100D + kit lens 55-250mm IS USM f/5.6