Sony FE 40mm F2.5 G E-mount lens review by adrichardson

reviewer#46864 date: Jun-2-2022
sharpness: 5
color: 5
build: 5
distortion: 5
flare control: 5
overall: 5
tested on:
  • film camera:Film camera
  • APS-C: 6MP6 MP; 10MP10 MP; 12MP12 MP; 14MP14 MP; 16MP16 MP; 20MP20 MP; 24MP24 MP
  • full frame: 12MP12 MP; 24MP24 MP; 36MP36 MP; 42MP42 MP; 61MP61 MP
ownership:I own this lens
compared to:Zeiss Batis 40mm f2
Sony FE 35mm f1.4 GM
Sony FE 35mm f1.8
Sigma 35mm f2
Sony FE 50mm f2.5 G
price paid:500 GBP (new)
positive:Sharpness (especially wide open)
Neutral colour
Size and weight
Good close focus performance
AF performance
negative:Slow max aperture
comment:This is now my go-to lens for travel and street photography. The size and weight make it a great choice for situations where you want to capture natural moments or just don't want to attract too much attention.

The AF performance is outstanding - it's actually a tad faster than the 35mm f1.4 GM and is incredibly accurate. Sharpness is excellent in the centre wide open, with very good corners (improving to excellent around f2.8 on my copy). Colours are neutral, without feeling sterile.

It's huge upgrade from the Batis in terms of AF performance, but is also sharper, especially at the MFD. The GM just beats it in terms of sharpness across the frame wide open and has more pleasing rendering, which comes at the expense of size, weight and price. I found it sharper than the Sony 35mm f1.8 and Sigma 35mm f2, with more pleasing rendering than the Sony. It's fully weather-sealed, which is a big plus compared to the Sigma.

It's superficially similar to the 50mm f2.5 G, with similarly neutral colours, but is noticeably faster and more accurate on the AF front. I found my 40mm G sharper wide open, with the 50mm G having a slight edge in terms of rendering due to the longer focal length.

rating summary

lens image
  • total reviews: 5
  • sharpness: 4.80
  • color: 4.80
  • build: 4.60
  • distortion: 4.80
  • flare control: 4.80
  • overall: 4.76 - Home of the alpha system photographer
In memory of Cameron Hill - brettania