Camera and lens test: Canon 5d-Mark III versus Canon 100D (Rebel SL1)

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

By |2018-09-14T14:25:45+01:00August 18th, 2017|blog|0 Comments

About the Author:

Ion Paciu is a proactive London based freelance professional photographer and a member of The Royal Photographic Society. He specialises in architecture/cityscape and people / portrait photography. Ion Paciu, Photography School Tutor and founder of Photoion Photography, teaches advanced photography topics and specialised photography topics for groups and on one to one photography classes. Subjects and techniques taught on the Photoion Photography School Workshops include: macro, speedlight and studio lighting photography, portrait, food, macro, cityscape, nude, etc.

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