Specifications#
- Brand
- Tamron
- Model
- SP 45mm F/1.8 Di VC USD
- Lens type
- Standard prime
- Focal length
- 45 mm
- Maximum aperture
- f/1.8
- Image circle
- Full frame (36×24 mm)
- Mount(s)
- Nikon F, Canon EF, Sony / Minolta A-mount
- Projection
- Rectilinear
- Stabilisation
- Yes (optical)
- Autofocus motor
- ultrasonic (USD)
- Lensfun correction profile
- Yes — distortion/vignetting/TCA
Equivalent focal length on different cameras#
Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).
| Camera format | At 45 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 45 mm · 51° | f/1.8 |
| APS-C | 68 mm · 35° | f/2.7 |
| APS-C (Canon) | 72 mm · 33° | f/2.9 |
| Micro Four Thirds | 90 mm · 27° | f/3.6 |
Depth of field & background blur#
Computed on its native Full frame format (CoC 30 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 50 mm f/1.8 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 45 mm | f/1.8 | 5.1 cm | 20.9 cm | 1.34 m | 5.71 m | 37.5 m | 1.6% |
| 45 mm | f/4 | 11.4 cm | 47.0 cm | 3.21 m | 18.1 m | 16.9 m | 0.7% |
| 45 mm | f/8 | 22.9 cm | 97.9 cm | 8.96 m | ∞ | 8.48 m | 0.4% |
Handheld & night-sky limits#
NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).
| Body | Min. handheld shutter (longest focal) | 500 rule at 45 mm | NPF at 45 mm, f/1.8 |
|---|---|---|---|
| Full frame | 1/50 s | 11 s | 5 s |
| APS-C | 1/60 s | 7 s | 4 s |
| APS-C (Canon) | 1/80 s | 7 s | 4 s |
| Micro Four Thirds | 1/100 s | 6 s | 4 s |
Compatible cameras#
Bodies in our database with a native Nikon F, Canon EF and Sony / Minolta A-mount mount.
- Nikon D6 2020
- Nikon D780 2020
- Canon EOS-1D X Mark III 2020
- Nikon D3500 2018
- Nikon D7500 2017
- Nikon D850 2017
- Canon EOS 6D Mark II 2017
- Nikon D5600 2016
- Nikon D3400 2016
- Nikon D500 2016
- Canon EOS 5D Mark IV 2016
- Canon EOS-1D X Mark II 2016
- Nikon D5 2016
- Nikon D5500 2015
- Nikon D7200 2015
- Canon EOS 5DS 2015
- Canon EOS 5DS R 2015
- Sony Alpha 77 II 2014
- Nikon D4S 2014
- Nikon D750 2014
- Nikon D810 2014
- Nikon D3300 2014
- Nikon D7100 2013
- Sony Alpha 58 2013
- Nikon D5300 2013
- Nikon D610 2013
- Nikon Df 2013
- Blackmagic Design Pocket Cinema Camera 2013
- Nikon D3200 2012
- Nikon D4 2012
- Nikon D5200 2012
- Nikon D600 2012
- Nikon D800 2012
- Canon EOS 5D Mark III 2012
- Canon EOS 6D 2012
- Canon EOS-1D X 2012
- Sony Alpha 37 2012
- Sony Alpha 57 2012
- Canon EOS-1D C 2012
- Sony Alpha 65 2011
Adapt it to other systems#
Similar lenses#
- Canon TS-E 45mm f/2.8 f/2.8
- Nikon Nikkor AI 45mm f/2.8 GN f/2.8
- Canon EF 50mm f/1.8 f/1.8
- Canon EF 50mm f/1.8 II f/1.8
- Canon EF 50mm f/1.8 STM f/1.8
- Canon EF 50mm f/1.2L USM f/1.2
- Canon EF 50mm f/1.4 USM f/1.4
- Nikon Nikkor 50mm f/2 f/2
- Nikon Nikkor AF 50mm f/1.4D f/1.4
- Nikon Nikkor AF 50mm f/1.8D f/1.8
- Nikon Nikkor AF-S 50mm f/1.4G f/1.4
- Nikon Nikkor AF-S 50mm f/1.8G f/1.8
Frequently asked questions#
Is the Tamron SP 45mm F/1.8 Di VC USD full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Tamron SP 45mm F/1.8 Di VC USD equivalent to on APS-C?
On a 1.5× APS-C body it frames like 68 mm, and like 72 mm on Canon APS-C.
What is the Tamron SP 45mm F/1.8 Di VC USD good for?
As a standard prime it suits street, documentary, everyday and low-light shooting.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources