Sigma 400mm F5.6 APO telemacro A-mount lens review by Burt

reviewer#4958 date: Mar-3-2009
sharpness: 5
color: 5
build: 5
distortion: 5
flare control: 4
overall: 4.8
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:sigma 400mm
sigma 400mm apo
price paid:350 eur
positive:focus hold switch
macro function
position of switches
very accurate focussing ring
negative:small tripod mount
small tripod mount lock
comment:I owned the sigma 400 and the sigma 400 apo before, and I definately prefer this version!

The build quality is better. The focussing ring is fantastic! Big, easely accessible and accurate.
the position of the switches is good. No way you switch something on or off by accident + they are still easy to find, even when looking trough the lens.

The focussing is fast (enough) and accurate, but the lens tends to hunt in low-light or low-contrast situations.

the macrofunction is plain fun! Minimum focussing distance is (around) 1,5m, wicht is fairly close!

I use the lesn for birding. Sharpness is good, but not so much at 5.6. flare is better than with the other sigma 400mm lenses.
Fucusing is less noisy too!
hmm, what else?

For me this is definately a keeper. I can't wait to try this baby with the sony 2x tc I am getting next month.

rating summary

lens image
  • total reviews: 19
  • sharpness: 4.58
  • color: 4.58
  • build: 4.42
  • distortion: 4.89
  • flare control: 4.26
  • overall: 4.55 - Home of the alpha system photographer
In memory of Cameron Hill - brettania