TTArtisan Canon RF mount Ultra-wide prime
TTArtisan 21mm f/1.5
Quick answer
The TTArtisan 21mm f/1.5 is a ultra-wide prime lens covering 21mm at f/1.5 for the Canon RF mount. Its fast maximum aperture helps in dim light and gives good subject separation.
- APS-C (34mm equiv.)
- 18 Canon RF cameras
- Focal
- 21mm
- Aperture
- f/1.5–16
- Weight
- 412g
- Filter
- 72mm
- AF motor
- None
What 21mm sees
- APS-C crop 1.6× → 34mm
- 65.6° 56.4° horizontal
Diagonal angle of view. Frames drawn to scale at 21mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorTTArtisan 21mm f/1.5 specifications
Optics
- Focal length
- 21mm
- Maximum aperture
- f/1.5
- Minimum aperture
- f/16
- Format coverage
- APS-C
- Optical construction
- 13 elements in 11 groups
- Aperture blades
- 10
Focus
- Autofocus motor
- None
Physical
- Filter thread
- 72 mm
- Weight
- 412 g
Specification source: ttartisan.com
What can you shoot with the TTArtisan 21mm f/1.5?
At 21mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its fast maximum aperture helps in dim light and gives good subject separation.
Frequently asked questions
What mount does the TTArtisan 21mm f/1.5 use?
It uses the Canon RF mount, so it fits Canon RF cameras directly.
What is the focal length of the TTArtisan 21mm f/1.5?
It is a fixed 21mm lens with a maximum aperture of f/1.5. That makes it a ultra-wide lens.
Is the TTArtisan 21mm f/1.5 a prime or a zoom lens?
It is a prime lens with a fixed 21mm focal length. Primes usually open wider than zooms; this one opens to f/1.5.
What is the TTArtisan 21mm f/1.5 equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 34mm on full frame, with a 56.4° horizontal and 65.6° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the TTArtisan 21mm f/1.5 fit?
Any Canon RF-mount camera, including Canon EOS R, Canon EOS R1, Canon EOS R10, Canon EOS R100, and Canon EOS R3 and 13 more.
Alternatives for Canon RF from other brands
All Canon RF lensesSame mount, overlapping focal range, closest maximum aperture first.