Distortion issue with Sigma 30mm f1.4 lens?

dinneenp · 02-14-2011, 06:41 AM

Hi,
I was just about to buy a Pentax 50mm f1.4 lens but am thinking of this instead maybe.
I have 2 young kids so and a lot of shots would be indoors so this could be better for me.
However I read-
The 30 is wide enough to be unflattering to facial features but only if you get too close.
Could someone post a few sample pictures of the distortion?
I like kid shots/portraits with a lot of background blur. For this I'd be relatively close to my subject and using a high aperture
Would I have the distortion issue for shots like above?
I think that's the only thing stopping me from buying it at the moment.

this is an example of the kind of shots I'm on about:

Cheers,
Pa.

WiseOx · 02-14-2011, 07:22 AM

I haven't noticed the distortion you refer to, but can help out on an example.

One of my favorites of my son, with this lens. I think it's a great piece of fast glass....

This shot has also kept me from parting with the lens....as I had toyed with the idea of selling it to help fund a FA 31mm.

sterretje · 02-14-2011, 09:37 AM

This thread contains a comparison of the 'effect' of the different focal lengths (3rd post).

Note: shots were taken on full frame, not on APSc

02-14-2011, 06:41 AM	#1
dinneenp Senior Member Join Date: Mar 2010 Location: ireland Photos: Gallery \| Albums Posts: 166	Distortion issue with Sigma 30mm f1.4 lens? Hi, I was just about to buy a Pentax 50mm f1.4 lens but am thinking of this instead maybe. I have 2 young kids so and a lot of shots would be indoors so this could be better for me. However I read- The 30 is wide enough to be unflattering to facial features but only if you get too close. Could someone post a few sample pictures of the distortion? I like kid shots/portraits with a lot of background blur. For this I'd be relatively close to my subject and using a high aperture Would I have the distortion issue for shots like above? I think that's the only thing stopping me from buying it at the moment. this is an example of the kind of shots I'm on about: Cheers, Pa.

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02-14-2011, 07:22 AM	#2
WiseOx Veteran Member Join Date: Sep 2006 Location: Whitby (near Toronto), Canada Photos: Albums Posts: 433	I haven't noticed the distortion you refer to, but can help out on an example. One of my favorites of my son, with this lens. I think it's a great piece of fast glass.... This shot has also kept me from parting with the lens....as I had toyed with the idea of selling it to help fund a FA 31mm.

02-14-2011, 09:37 AM	#3
sterretje Veteran Member Join Date: Dec 2008 Location: Roodepoort, South Africa Photos: Gallery \| Albums Posts: 3,561	This thread contains a comparison of the 'effect' of the different focal lengths (3rd post). Note: shots were taken on full frame, not on APSc