Sigma 16mm f/1.4 DC DN First impressions

Sigma 16mm f/1.4 DC DN First impressions

Sigma 16mm f/1.4 DC DN First impressions

Well, I got a Sigma 16mm f/1.4 DC DN lens – It arrived today and I have no patience to put it on test.

I know that this is APS-C lens, I know it is not intended to be used on a full frame camera, but I was quite curious how it will perform.

In my case Sony A7R II and what will be the difference between Full frame mode and Super 35 mode.

(All photos taken with Sony A7R II and Sigma 16mm f/1.4 DC DN)

In full frame mode: 16mm, 42 MPx (around 30MP usable when you crop the vignetting)

In Super 35 mode:  24mm,18Mpx (enough for most of the cases)

 

 

Here are my initial thoughts and images.

In all images the ISO was set to AUTO

 

 

Sample of the Super 35mm mode:

Sigma 16mm f/1.4 DC DN in Super 35mm mode F/4, 1/1250, ISO2500

 

Another sample of the Super 35mm mode:

Sigma 16mm f/1.4 DC DN in Super 35mm mode F/4, 1/320, ISO320

 

Sample of the Full frame mode:

Sigma 16mm f/1.4 DC DN in Full frame mode heavy crop 13,4 MPx

Samples to see the actual the visual difference between the Full frame 16mm and the Super 35mm (24mm) mode:

Sigma 16mm f/1.4 DC DN in Super 35mm mode F/4, 1/1250, ISO 250

 

Sigma 16mm f/1.4 DC DN in full frame mode F/4, 1/1250, ISO160 (slightly cropped)

 

 

Sigma 16mm f/1.4 DC DN in Full frame mode F/1.4

 

Sigma 16mm f/1.4 DC DN in Super 35mm mode F/1.4

 

And another two:

Sigma 16mm f/1.4 DC DN in Full frame mode F/4, 1/100 ISO125

 

Sigma 16mm f/1.4 DC DN in Super 35mm mode F/4, 1/100 ISO160

 

 

 

 

Here is a sample of the usable resolution and IQ of the photo.

Settings of the photo: F/4, 1/200 and ISO 200

Sigma 16mm f/1.4 DC DN actual crop in Lightroom

 

Sigma 16mm f/1.4 DC DN Full resolution sample of the crop

 

Sigma 16mm f/1.4 DC DN usable around 30MPx

 

Another comparisement:

Sigma 16mm f/1.4 DC DN in Super 35 mode (24mm) F4, 1/1250, ISO 160

 

Sigma 16mm f/1.4 DC DN in Full frame mode (16mm) F4, 1/1250, ISO 250 – in this case the Auto transform worked quite good and this is the Full frame, after the lens profile and Auto transform correction applied)

 

 

Sigma 16mm f/1.4 DC DN in Super 35 mode (24mm), F/4, 1/320, ISO 1600

 

 

Sigma 16mm f/1.4 DC DN in Super 35 mode (24mm) heavy crop F/4, 1/320, ISO 1600

 

 

Good:

  • Overall very pleased with the sharpness
  • You can get around 30MP usable image in Full frame mode (when you crop the vignetting)
  • Not so heavy as I was expected
  • Very close focusing distance

Bad:

  • Well, obviously heavy vignetting when used on Full frame
  • Most of the times Auto transform in Lightroom is not working or not working properly when I edit the Full frame image with this lens.

 

More tests coming soon…

 

P.S.

Not bad at all with Sony A6000 as well (wide open at F/1.4):

Sigma 16mm f/1.4 DC DN with Sony A6000

 

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