What is a

Crop Factor?

Quick-fire guide to understanding your camera’s crop/form factor and how it affects your photos.

arrows downward crop crop factor
Join the iPhotography course
Join the iPhotography course

All digital cameras that don’t have a full-frame sensor are referred to as cropped sensors. It means they are smaller than a full sized one. This difference in size will reflect a difference in your photographs.

The size of your camera’s sensor will change the focal length of any lens you use. For example, a 50mm lens will never be truly 50mm on a cropped sensor.

FIND YOUR CAMERA’S FORM FACTOR

Common Form Factors

1.29x crop factor
1.52x crop factor
1.61x crop factor
2.0x crop factor
2.72x crop factor

APS-H Sensors (Canon)

APS-C Sensors (Other Brands)

APS-C Sensors (Canon)

Micro 4/3rd Cameras

Compact Cameras

How to work out your lenses true focal length

Multiply

FOCAL LENGTH

X

FORM FACTOR

SEE IT IN PRACTICE

Current Focal Length

Actual Focal Length

pink arrow 50mm crop
pink arrow 85mm crop
pink arrow 100mm crop

X

X

X

=

=

=

64.5mm

129.2mm

200mm

Same goes for zoom lenses

18-55mm on APS-C 

actually, gives you a 

 

27.36-83.6mm lens

DISCOVER MORE AT

What is a Crop Factor?

Quick-fire guide to understanding your camera’s crop factor and how it affects your photos.

arrows downward crop

All cameras that don’t have a full-frame sensor are referred to as cropped sensors. It means they are smaller than a full sized one.

The crop / form factor of your camera will change the focal length of any lens. A 50mm lens will never be truly 50mm on a cropped sensor.

FIND YOUR CAMERA’S FORM FACTOR

Common Form Factors

APS-H Sensors (Canon)

APS-C Sensors 

(Sony/Nikon/Pentax/Fuji/Samsung)

APS-C Sensors (Canon)

Micro 4/3rds Cameras

Compact Cameras

How to work our your lenses true focal length

Multiply

FOCAL LENGTH

X

FORM FACTOR

SEE IT IN PRACTICE

x = 64.5mm

x = 129.2mm

x = 200mm

Same goes for zoom lenses

18-55mm on APS-C 

actually, gives you a 

 

27.36-83.6mm lens

  

What Others Are Reading

iPhotography Course not only teaches you all the standard technical expertise, settings, skills, and special effects with your camera – but we also show you how to use these skills to develop your own individual style as a photographer.

how to edit a photo cropping example 1

How to Edit a Photo

Always stuck on how to edit a photo? iPhotography reveals 3 things you NEED to do (or consider) on EVERY picture you take!

Bird Hide Photography: 7 Quick Tips

Discover these 7 quick tips for bird hide photography by, Rachel Sinclair, pro wildlife photographer and safari specialist

Dealing with Onlookers: Wellbeing in Photography

Whilst practising photography it’s natural to draw attention from strangers. This makes some of us uncomfortable and self-concious to the...
iphotography training online course learn more

100,000+

iPhotographers

iphotography training online course learn more

187

Countries

Who Are Photography Classes Made For?

Are our classes made for you? Well if you’re brand new to photography or been practising for a little while but starting to hit a wall then, the simple answer – YES! 

Whether you have just bought a camera or have spent years behind the viewfinder, our photography classes are comprehensive, educational, honest and cutting-edge – there are no other courses like it (believe us, we checked a lot!). 

We’re like the Wikipedia of photography – all of the answers are under one roof.

3 Ways to Use Natural Light

Sunlight can be discussed using a few different photography terms and approaches. There are normally 4 considerations photographers look at when using natural light in their photos - Direction, Colour, Intensity and Quality.

1. Direction

In which direction is the light falling? Is the direction of the light where you need it to be? While it’s very hard to change the direction of natural light unless you’re using reflectors you may have to move your subject into the path of the light to get the right finish.

There are 3 main directions that you can use natural light in a photo;

FREE - Optional Assignments

Some of our classes offer personal critiques and constructive feedback from qualified photography tutors. Receive 1-on-1 advice and tips from the experts.

5 Top Architectural Photography Tutorial Tips

How to Be a Nature Photographer

Going from a beginner nature photographer to making money from your camera you need dedication. It requires time and a never-ending passion to get outdoors with your cameras and practise new techniques. Get outdoors early and return when the sun sets.

Get familiar with your local woodlands and read nature books to learn about wildlife, birding and foliage. This will help you understand what you are shooting and when is the best time of year to find these subjects.

HEAD OFFICE

support@iphotography.com

The other challenge when shooting through glass is the tinting. Unfortunately, architects and designers didn’t think about us photographers when creating these skyscrapers.

Their windows are invariably tinted in some way to help with heating.

This means that some of your photos may have a green/grey tint to them.

It’s not the biggest issue as you can rebalance this tint in editing with the ‘tint’ slider for example.