Sigma 10-20 4 vs 3.5

gerax · 11-29-2015, 04:50 AM

Deciding which one to get.
Is the half step more worth the price difference? I red the shootout here, but there is not a clear and definitive answer about this.
What's your take as "real life" users?

Thanx

L.

**Digitalis** · 11-29-2015, 05:18 AM

Originally posted by gerax

Is the half step more worth the price difference?

In a nutshell: No.

Originally posted by gerax

What's your take as "real life" users?

You're going to be using it at f/8~f/11 to get the most consistent image quality throughout the zoom range across the frame, these lenses are so wide that a 1/2 stop difference in aperture isn't going to make a difference when light levels drop. I can hand hold my Sigma 8-16mm at 1/2 second at 8mm without issue.

AquaDome · 11-29-2015, 08:08 AM

I have the f/4-5.6 version. I have never needed it to be faster.

mee · 11-29-2015, 08:16 AM

The other difference is the HSM in the 3.5 versus the screwdrive mechanism in the variable aperture version.

For such a wide lens, though, I think this is negligible. ..unless you absolutely need the quietness.

dstar · 11-29-2015, 08:41 AM

Originally posted by mee

The other difference is the HSM in the 3.5 versus the screwdrive mechanism in the variable aperture version.

For such a wide lens, though, I think this is negligible. ..unless you absolutely need the quietness.

Best look sigma club 10-20
This my working lens

Blueberrybob · 11-29-2015, 11:10 AM

Hi
After my own deliberation, I chose the constant aperture model after the price dropped and am very happy having f-3.5 at all focal lengths (don't have to "get by" with f-5.6). I prefer silent focus and the 3.5 is fast enough for milky way shots. I have no particular expertise - just enjoy getting out experiencing nature and learning to "see." Choose which one will best meet your intended use. I'm pretty sure either will give you good results.

mikeSF · 11-29-2015, 11:36 AM

I've had the 4-5.6 version for many years and I like it. I did see there is currently a $200 rebate for the 3.5 version which brings it close in price to the older version, but everything I've read shows the slower version performs perhaps better in IQ.

goldenarrow · 11-29-2015, 03:50 PM

different diameter filters, if that matters too.

Kath · 11-30-2015, 10:14 AM

I wanted the constant aperture of the 3.5 and have enjoyed the lens very much. It's surprised me with fantastic image quality and, thus, I use it often. In fact, my 15 ltd is getting kind of lonely from decreasd use. The 10-20 is that good.

**Scorpio71GR** · 11-30-2015, 07:32 PM

I no longer see the 4-5.6 version. It appears this lens is being replaced with a newer version. Lately very Sigma lenses are being offered in K mount. It will sad to no longer see this available. I have thought of getting one myself. I hope they are still around when I can afford one.

11-29-2015, 04:50 AM	#1
gerax Senior Member Join Date: Nov 2014 Posts: 224	Sigma 10-20 4 vs 3.5 Deciding which one to get. Is the half step more worth the price difference? I red the shootout here, but there is not a clear and definitive answer about this. What's your take as "real life" users? Thanx L.

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11-29-2015, 05:18 AM	#2
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by gerax Is the half step more worth the price difference? In a nutshell: No. Originally posted by gerax What's your take as "real life" users? You're going to be using it at f/8~f/11 to get the most consistent image quality throughout the zoom range across the frame, these lenses are so wide that a 1/2 stop difference in aperture isn't going to make a difference when light levels drop. I can hand hold my Sigma 8-16mm at 1/2 second at 8mm without issue.

11-29-2015, 08:08 AM	#3
AquaDome Veteran Member Join Date: Jan 2014 Location: New Carlisle, IN Photos: Gallery \| Albums Posts: 1,475	I have the f/4-5.6 version. I have never needed it to be faster.

11-29-2015, 08:16 AM	#4
mee Veteran Member Join Date: May 2010 Posts: 7,403	The other difference is the HSM in the 3.5 versus the screwdrive mechanism in the variable aperture version. For such a wide lens, though, I think this is negligible. ..unless you absolutely need the quietness.

11-29-2015, 08:41 AM	#5
dstar Pentaxian Join Date: Nov 2007 Location: Albuquerque NM Photos: Albums Posts: 475	Originally posted by mee The other difference is the HSM in the 3.5 versus the screwdrive mechanism in the variable aperture version. For such a wide lens, though, I think this is negligible. ..unless you absolutely need the quietness. Best look sigma club 10-20 This my working lens

11-29-2015, 11:10 AM	#6
Blueberrybob Forum Member Join Date: Feb 2014 Photos: Gallery Posts: 103	Hi After my own deliberation, I chose the constant aperture model after the price dropped and am very happy having f-3.5 at all focal lengths (don't have to "get by" with f-5.6). I prefer silent focus and the 3.5 is fast enough for milky way shots. I have no particular expertise - just enjoy getting out experiencing nature and learning to "see." Choose which one will best meet your intended use. I'm pretty sure either will give you good results.

11-29-2015, 11:36 AM	#7
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,620	I've had the 4-5.6 version for many years and I like it. I did see there is currently a $200 rebate for the 3.5 version which brings it close in price to the older version, but everything I've read shows the slower version performs perhaps better in IQ.

11-29-2015, 03:50 PM	#8
goldenarrow Veteran Member Join Date: Jun 2009 Location: Chicago Suburbs. Photos: Gallery Posts: 501	different diameter filters, if that matters too.

11-30-2015, 10:14 AM	#9
Kath Site Supporter Join Date: Jan 2014 Location: Portland, OR Photos: Gallery Posts: 737	I wanted the constant aperture of the 3.5 and have enjoyed the lens very much. It's surprised me with fantastic image quality and, thus, I use it often. In fact, my 15 ltd is getting kind of lonely from decreasd use. The 10-20 is that good.

11-30-2015, 07:32 PM	#10
Scorpio71GR Loyal Site Supporter Join Date: Nov 2014 Location: Michigan Photos: Gallery \| Albums Posts: 6,005	I no longer see the 4-5.6 version. It appears this lens is being replaced with a newer version. Lately very Sigma lenses are being offered in K mount. It will sad to no longer see this available. I have thought of getting one myself. I hope they are still around when I can afford one.