Canon RF-S 7.8mm F4 STM Dual is a Fixed aperture Auto Focus (AF)
Ultra-Wideangle Prime lens with APS-C / DX max sensor coverage, and it is designed to be used with
RF Mount cameras .
What type of photography is the Canon RF-S 7.8mm F4 STM Dual lens good for?
The choice of photography type for which you intend to use the Canon RF-S 7.8mm F4 STM Dual is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
Canon RF-S 7.8mm F4 STM Dual is a member of Canon's Dual series of lenses. Below you can see the latest lenses in this series.
Canon Dual Series Lenses in Canon RF Mount
Reasons to Buy the Canon RF-S 7.8mm F4 STM Dual Lens
Here we've included a summary of the advantages and disadvantages of the Canon RF-S 7.8mm F4 STM Dual lens in a list form to assist you in determining whether it offers the features you need.
0.15m / 5.9 inch
131g / 4.6 oz
Canon RF-S 7.8mm F4 STM Dual from Amazon B&H PHOTO
Lens Mount
Canon RF-S 7.8mm F4 STM Dual is compatible with cameras that have a Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Size, Weight and Filter Thread
The size and weight are crucial factors to consider when searching for your next lens. Canon RF-S 7.8mm F4 STM Dual has a maximum diameter of 69mm and a total length of 42mm . It weighs 131g / 4.6 oz .
Canon RF-S 7.8mm F4 STM Dual has a filter thread of 58mm . Below are links to the filters that we recommend you to consider for your Canon RF-S 7.8mm F4 STM Dual:
You can also check All Canon RF Mount Lenses with 58mm Filter Thread Size
Focal Range
Canon RF-S 7.8mm F4 STM Dual has a fixed focal length of 7.8mm which has a 35mm equivalent focal range of 12.8mm when used on a APS-C / DX format camera.
Weather Sealings
The Canon RF-S 7.8mm F4 STM Dual is a weather-sealed lens, which provides extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have effective protection, you have to pair the Canon RF-S 7.8mm F4 STM Dual with a weather-sealed camera body such as the Canon R7 ,
Optical Image Stabilization
Canon RF-S 7.8mm F4 STM Dual doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Maximum Magnification Ratio
Canon RF-S 7.8mm F4 STM Dual has a Max Magnification Ratio of 0.07x with a minimum focusing distance of 0.15m . 0.07x ratio is quite low, making this lens unsuitable even for modest close-up photography.
Below are the 3 Ultra-Wideangle Prime type Canon RF mount lens alternatives with highest max magnification ratios :
Aperture
The Canon RF-S 7.8mm F4 STM Dual features a maximum aperture of F4 and can be stopped down to a minimum aperture of F16. While a maximum aperture of F4 requires a bit more ambient light or a bump in ISO when shooting indoors, it keeps the physical size of the lens much smaller and easier to carry. Given the wider 8mm field of view, the background will naturally stay a bit more in focus, making it ideal for environmental portraits, street photography, or landscapes where context matters. Stopping down to F16 gives you plenty of sweep for landscapes or outdoor group shots where you need everything sharp from front to back.
Optical Formula
Canon RF-S 7.8mm F4 STM Dual's optical formula consists of 9 elements in 7 groups . Special elements used in this design is 2 UD lens elements.
Optical Construction of the Canon RF-S 7.8mm F4 STM Dual
Lens Hood
Canon RF-S 7.8mm F4 STM Dual doesn't come with a lens hood.
What's in the Box of Canon RF-S 7.8mm F4 STM Dual?
Here are the items that are included inside the box of Canon RF-S 7.8mm F4 STM Dual:
Canon RF-S 7.8mm f/4 STM Dual Lens (Canon RF) Canon E-58 II Lens Cap Canon Lens Dust Cap RF Limited 1-Year Manufacturer Warranty
Recommended Accessories for the Canon RF-S 7.8mm F4 STM Dual
Now it is time to look at the Top Recommended Accessories for the Canon RF-S 7.8mm F4 STM Dual .
Body Colour
Canon RF-S 7.8mm F4 STM Dual is available in Black color.
Canon RF-S 7.8mm F4 STM Dual Attached to a camera
Here are the 8 most popular comparisons of the Canon RF-S 7.8mm F4 STM Dual amongst Camera Decision readers.
Top Alternatives of Canon RF-S 7.8mm F4 STM Dual Lens
In addition, it would be interesting to check which lenses from other mounts are most commonly compared with the Canon RF-S 7.8mm F4 STM Dual.
Top Alternatives of Canon RF-S 7.8mm F4 STM Dual in Other Lens Mounts
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