SIGMA 10-20mm CLUB

Jewelltrail · 09-01-2010, 01:10 PM

Quote:

Rustnail925:Just a quick question..
How do you deal with the distortion of the lens? Do you guys use something for PP to minimize the distortion?

The lens' generates great shots leaving the distortion as is. In all my shooting with it, I believe there were 2 shots I tried working the distortion to my liking.

Jewelltrail · 09-01-2010, 01:12 PM

Quote:

KansasHorizons.com: Without the Sigma 10-20mm I would rarely get a full double rainbow.

Very nice rainbow! Glad you got that shot.

Nass · 09-01-2010, 03:01 PM

Originally posted by Big G

Here's a few I took on my K20D and Sigma 10-20mm

South Queensferry | Flickr - Photo Sharing!

Ghosts In The Rocks | Flickr - Photo Sharing!

Fence Or A Railtrack? | Flickr - Photo Sharing!

Very Nice, Big G

rustynail925 · 09-02-2010, 06:54 AM

My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think

Jewelltrail · 09-02-2010, 08:15 AM

Quote:

Nass: Very Nice, Big G

Yes, super nice work Big G--because you must click on the links, I almost missed these--thanks Nass!

One @ 13mm, 1/3rd, f 10

jgredline · 09-02-2010, 08:34 AM

Originally posted by axl

Javier,

haven't heard much good about f3.5 version. I was thinking of getting it myself, but from what I have read/heard the older is better. f3.5 has heavy vignetting and corner sharpness is gone... Have a look at photozone.de, they tested it in Nikon F mount and if you look at the pictures they got, I think you'll be as disappointed as I was

Thanks a bunch axl. I did a little bit more research and it is not even close. It seems that the older one is indeed sharper.
I really could not spend the money on that lens anyway, so that too is a relief.

SpecialK · 09-02-2010, 11:31 AM

Quote:

My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think

That is not a lens problem, it is a real-world problem. As you point up or down, the far subjects, such as the tops of buildings, must be smaller, and therefore lean in.

Just the opposite happens with a telephoto. It tends to makes things the same size because the subjects are relatively the same distance away. Nobody wonders about "fixing" telephoto "distortion", though.

Jewelltrail · 09-03-2010, 07:29 AM

Quote:

Rustynail925: My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think

Yes, this is a problem for all of us. Try to hold the camera level when shooting with this lens. Also, you need to be extra mindful of the viewfinder with this lens on: the slightest movement of the camera for compostion can have drastic effects on the final image. This is the fun of the lens--with a little practice you will get over this issue. Good luck.

Big G · 09-03-2010, 02:10 PM

If you want rectilinear wide angle with distortion correction whilst taking the shot, then it's over to tilt and shift lenses; I reallllllllly want the Canon EF TS-E 17mm on a full frame body, take a look at the group on Flickr:

Flickr: Canon TS-E 17mm f/4L

Those verticals are damn perfect (where used properly).

zappa2 · 09-04-2010, 03:34 AM

All taken with sigma 10-20 @ 10 mm

danielausparis · 09-04-2010, 11:05 AM

dear zappa2, something went not right with your nice pics... does the fuzzyness come from the internet publishing?

PFH · 09-04-2010, 11:47 AM - **1 Like**

The sailing schools ship Atlantica.

zappa2 · 09-04-2010, 03:40 PM

Nice pica of the boat!

Fuzzyness of my pics indeed is caused by the forums image size conversion.

How to upload to prevent the conversion?

sau970982 · 09-05-2010, 02:56 AM

K-x + Sigma 10-20 F3.5 @ National Orchid Garden Singapore

atupdate · 09-05-2010, 11:01 AM - **1 Like**

Recently sold my DA 10-17mm to buy the Sigma 10-20mm. Here is my first outing with the Sigma @ 10mm. Dayton Dragons minor league baseball.

National Anthem

Top of the 6th

Tim

09-03-2010, 02:10 PM	#774
Big G Veteran Member Join Date: May 2009 Posts: 581	If you want rectilinear wide angle with distortion correction whilst taking the shot, then it's over to tilt and shift lenses; I reallllllllly want the Canon EF TS-E 17mm on a full frame body, take a look at the group on Flickr: Flickr: Canon TS-E 17mm f/4L Those verticals are damn perfect (where used properly). Last edited by Big G; 09-03-2010 at 02:16 PM.

09-04-2010, 03:34 AM	#775
zappa2 Inactive Account Join Date: Sep 2010 Posts: 2	Pictures taken in Ardeche - France All taken with sigma 10-20 @ 10 mm Attached Images

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09-01-2010, 01:10 PM	#766
Jewelltrail Veteran Member Join Date: May 2008 Location: Rhode Island Photos: Albums Posts: 4,180 Original Poster	Quote: Rustnail925:Just a quick question.. How do you deal with the distortion of the lens? Do you guys use something for PP to minimize the distortion? The lens' generates great shots leaving the distortion as is. In all my shooting with it, I believe there were 2 shots I tried working the distortion to my liking.

09-01-2010, 01:12 PM	#767
Jewelltrail Veteran Member Join Date: May 2008 Location: Rhode Island Photos: Albums Posts: 4,180 Original Poster	Quote: KansasHorizons.com: Without the Sigma 10-20mm I would rarely get a full double rainbow. Very nice rainbow! Glad you got that shot.

09-01-2010, 03:01 PM	#768
Nass Veteran Member Join Date: Aug 2009 Location: The British Isles Photos: Gallery Posts: 2,402	Originally posted by Big G Here's a few I took on my K20D and Sigma 10-20mm South Queensferry \| Flickr - Photo Sharing! Ghosts In The Rocks \| Flickr - Photo Sharing! Fence Or A Railtrack? \| Flickr - Photo Sharing! Very Nice, Big G

09-02-2010, 06:54 AM	#769
rustynail925 Veteran Member Join Date: Aug 2009 Location: Philippines Photos: Gallery Posts: 1,551	My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think

09-02-2010, 08:15 AM	#770
Jewelltrail Veteran Member Join Date: May 2008 Location: Rhode Island Photos: Albums Posts: 4,180 Original Poster	Quote: Nass: Very Nice, Big G Yes, super nice work Big G--because you must click on the links, I almost missed these--thanks Nass! One @ 13mm, 1/3rd, f 10

09-02-2010, 08:34 AM	#771
jgredline Veteran Member Join Date: Oct 2007 Location: LosAngeles, Ca. Photos: Albums Posts: 10,628	Originally posted by axl Javier, haven't heard much good about f3.5 version. I was thinking of getting it myself, but from what I have read/heard the older is better. f3.5 has heavy vignetting and corner sharpness is gone... Have a look at photozone.de, they tested it in Nikon F mount and if you look at the pictures they got, I think you'll be as disappointed as I was Thanks a bunch axl. I did a little bit more research and it is not even close. It seems that the older one is indeed sharper. I really could not spend the money on that lens anyway, so that too is a relief.

09-02-2010, 11:31 AM	#772
SpecialK Pentaxian Join Date: Dec 2006 Location: So California Photos: Gallery Posts: 16,481	Quote: My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think That is not a lens problem, it is a real-world problem. As you point up or down, the far subjects, such as the tops of buildings, must be smaller, and therefore lean in. Just the opposite happens with a telephoto. It tends to makes things the same size because the subjects are relatively the same distance away. Nobody wonders about "fixing" telephoto "distortion", though.

09-03-2010, 07:29 AM	#773
Jewelltrail Veteran Member Join Date: May 2008 Location: Rhode Island Photos: Albums Posts: 4,180 Original Poster	Quote: Rustynail925: My problem is when you point the camera from down to up or your from up and your pointing it down.. perspective distorition i think Yes, this is a problem for all of us. Try to hold the camera level when shooting with this lens. Also, you need to be extra mindful of the viewfinder with this lens on: the slightest movement of the camera for compostion can have drastic effects on the final image. This is the fun of the lens--with a little practice you will get over this issue. Good luck.

09-04-2010, 11:05 AM	#776
danielausparis Forum Member Join Date: Dec 2009 Photos: Gallery Posts: 94	dear zappa2, something went not right with your nice pics... does the fuzzyness come from the internet publishing?

09-04-2010, 11:47 AM - 1 Like	#777
PFH Veteran Member Join Date: Mar 2008 Location: Gothenburg, Sweden Photos: Gallery Posts: 483	The sailing schools ship Atlantica.

09-04-2010, 03:40 PM	#778
zappa2 Inactive Account Join Date: Sep 2010 Posts: 2	Nice pica of the boat! Fuzzyness of my pics indeed is caused by the forums image size conversion. How to upload to prevent the conversion?

09-05-2010, 02:56 AM	#779
sau970982 Forum Member Join Date: Jan 2010 Location: Hong Kong Posts: 68	K-x + Sigma 10-20 F3.5 @ National Orchid Garden Singapore

09-05-2010, 11:01 AM - 1 Like	#780
atupdate Pentaxian Join Date: Oct 2006 Location: Dayton, OH Photos: Gallery Posts: 4,724	Recently sold my DA 10-17mm to buy the Sigma 10-20mm. Here is my first outing with the Sigma @ 10mm. Dayton Dragons minor league baseball. National Anthem Top of the 6th Tim