74points

Canon EF 40mm F/2.8 STM

75points

Canon EF 50mm F/2.5 Compact Macro

Canon EF 40mm F/2.8 STM
Comparison winner
Canon EF 50mm F/2.5 Compact Macro
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23 facts in comparison

Canon EF 40mm F/2.8 STM vs Canon EF 50mm F/2.5 Compact Macro

Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro

Why is Canon EF 40mm F/2.8 STM better than Canon EF 50mm F/2.5 Compact Macro?

  • 10mm shorter minimum focal length
    ?

    40mmvs50mm
  • Has a silent focus motor built into the lens
    ?
  • Has full-time manual focus
    ?
  • 150g lighter
    ?

    130gvs280g
  • 11° wider maximum angle of view
    ?

    57°vs46°
  • 1 more aperture blades
    ?

    7vs6

Why is Canon EF 50mm F/2.5 Compact Macro better than Canon EF 40mm F/2.8 STM?

  • 10.71% wider aperture at minimum focal length
    ?

    f/2.5 vs2.8f
  • 10mm longer maximum focal length
    ?

    50mmvs40mm
  • 0.07m shorter minimum focus distance
    ?

    0.23mvs0.3m
  • 0.3f wider aperture at maximum focal length
    ?

    2.5fvs2.8f
  • Front element doesn't rotate
    ?
  • Has rounded aperture blades
    ?
  • 10f smaller aperture at maximum focal length
    ?

    32fvs22f
  • 11° narrower minimum angle of view
    ?

    46°vs57°

Price comparison

Canon EF 40mm F/2.8 STM

Buy used:

$158.99

ProductStorePrice
Canon EF 40mm F/2.8 STM AmazonCanon EF-S 24mm f/2.8 STM Lens
Amazon logo
$149.00
Canon EF 40mm F/2.8 STM AmazonCanon EF 17-40mm f/4L USM Ultra Wide Ang...Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for SLR Cameras
Amazon logo
$799.00
Canon EF 40mm F/2.8 STM AmazonCanon EF-S 17-55mm f/2.8 IS USM Lens for...Canon EF-S 17-55mm f/2.8 IS USM Lens for Canon DSLR Cameras, Lens Only
Amazon logo
$879.00
Canon EF 40mm F/2.8 STM AmazonCanon EF 16–35mm f/2.8L III USM Lens, Bl...Canon EF 16–35mm f/2.8L III USM Lens, Black (0573C002)
Amazon logo
$2,199.00
Canon EF 40mm F/2.8 STM AmazonCanon EF 24-70mm f/2.8L II USM Standard ...Canon EF 24-70mm f/2.8L II USM Standard Zoom Lens
Amazon logo
$1,899.00
Canon EF 40mm F/2.8 STM AmazonDiaphragm - Canon & Nikon Lenses
Amazon logo
$0.99
Canon EF 40mm F/2.8 STM AmazonCanon EF 16-35mm f/4L IS USM Lens - 9518...Canon EF 16-35mm f/4L IS USM Lens - 9518B002 , Black
Amazon logo
$1,099.00

General info

A longer maximum focal length allows you to focus in on a small part of a scene, and offers a narrower angle of view than shorter focal lengths.
2.Has a metal mount
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
A metal mount is generally superior to a plastic mount as it is more durable.
A shorter minimum focal length allows you to get more of the scene in the photo, and offers a wider angle of view than longer focal lengths.
4.Front element doesn't rotate
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
The front element doesn’t rotate. This is important if you use filters, as some such as polarising or gradient filters have to be orientated a certain way.
5.weight

130g

280g

We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
6.has or is a prime lens
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
A prime lens has a fixed focal length. In general, these are sharper, with a wider aperture.
7.Is a macro lens
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
A macro lens is used to take very close-up photos, allowing you to capture flowers, insects etc. in great detail. A macro lens is any lens with 1:1 magnification.
8.Is a normal lens
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
A normal lens is one that doesn't fall into another category such as wide angle or telephoto, and typically has a focal length between 35mm and 70mm. These lenses aren't tailored towards a specific type of photography, and so are quite versatile.

Optics

The zoom range is the ratio between the longest and shortest focal lengths. A higher zoom range means that the lens is more versatile.
At the shorter end of the lens you get the widest angle of view. This allows you to fit more of the scene into the photograph (based on APS-C format).
At the longest end of the lens you get the narrowest angle of view. This allows you to fit a small portion of the scene into the photograph, such as when you are zooming in on a subject (based on APS-C format).
A true macro lens has a magnification of 1:1. This means that the image produced is a life-size representation of the subject being photographed.

Aperture

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
3.Has rounded aperture blades
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
Similar to the number of aperture blades, rounded blades affect the way the light gets through to the sensor. Rounded blades, often only found on more expensive lenses, improve the appearance of the out-of-focus areas. This allows you to attain better, softer looking bokeh in your photos.
A smaller aperture reduces the amount of light reaching the sensor. This is important in bright conditions where a wider aperture could result in your image being overexposed. Another advantage is that with a smaller aperture you get a greater depth of field, and can keep all of the image in focus.
The aperture controls how much light gets through to the camera’s sensor. More blades is often an indicator of a better quality lens. It also allows you to achieve much nicer looking bokeh when blurring out your background, whereas a lens with less blades will often produce harsher, more polygonal bokeh.
A smaller aperture reduces the amount of light reaching the sensor. This is important in bright conditions where a wider aperture could result in your image being overexposed. Another advantage is that with a smaller aperture you get a greater depth of field, and can keep all of the image in focus.

Focus

This is the closest distance that the lens can focus. A shorter minimum focus distance allows you to get closer to your subject, and is particularly important when doing macro photography.
2.has a silent focus motor built into the lens
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor.
3.Can focus to infinity
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
Many lenses allow you to focus to infinity. This is essential when you wish to take photos including far off objects, such as when shooting landscapes, in order to make sure everything is sharp and in focus.
4.Has focus motor
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
Lenses with a built-in focus motor can autofocus even if the camera does not have its own focus motor.
5.Has full-time manual focus
Canon EF 40mm F/2.8 STM
Canon EF 50mm F/2.5 Compact Macro
With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode.

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