Sigma 15mm F2,8 for UW photography?

jhaaja · 30th October 2006, 07:43

I am in the look for a wide angle lens that I can later also use UW. I do not have a housing yet, but will buy it hopefully soon.

My camera is Canon EOS350D.

Any comment about that Sigma fishey?

anny · 30th October 2006, 07:53

The Sigma 15mm is an OK lens for film cameras. With Digital and crop factor it will not give you 180 degrees field of view.

As canon does not have any Fisheye lens for smaller sensors I would look at the new Tokina 10-17 fisheye zoom.
It will give you 180-100 degrees which is optimal for UW.

See:
Tokina 10-17/3.5-4.5 DX [digital!]
New Tokina Lenses

Just check that you can get the ports and zoomrings from your underwater housing manufacturer. And check also Wetpixel.com :: Underwater Photography and Videography someone is about to test it UW.

jhaaja · 30th October 2006, 07:59

That Tokina seems interesting. One reason for the Sigma 15mm was that suitability with 35mm film also. I guess in the future the digital SLRs will also have full size panel.

There is no ports for that Tokina yet. Probably they are coming but the lens is so new.

Sue · 30th October 2006, 08:03

I have one Sigma DGFisheye (15mm 1:2.8) that I use in my Canon 20D.
I'm pretty happy with it, but you have to deal with vignetting in most photos.

Nemo1957 · 30th October 2006, 10:49

The 15MM EX DG will give you 180 on a digital sensor, the older and recently discontinued 15MM EX you will end up with about 110 degrees on your cannon. I just bought one of these to use for doing UW panoramas. Since the distorted corners will be cut off by the smaller sensor you end up with a very wide angle lens and images that are sharp corner to corner.

Bottom line it depends on what you intend to do with it. If you need the width or 180 look at the DG version or there might be a port for the Tokina by the time you pull the trigger on a housing.

jhaaja · 30th October 2006, 11:38

Thanks everyone for the input! This is a great forum indeed!

I think I will put an order for the lens. Should it not work with 35mm film and reduced panel digital SLRs too?

30th October 2006, 07:43	#1 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 884	Sigma 15mm F2,8 for UW photography? I am in the look for a wide angle lens that I can later also use UW. I do not have a housing yet, but will buy it hopefully soon. My camera is Canon EOS350D. Any comment about that Sigma fishey?
(Offline)

30th October 2006, 07:53	#2 (permalink)
anny No bubbles photo Current Rebreather/s: Sport Kiss Other Rebreather/s: Sport Kiss Join Date: May 2005 Location: Sweden Posts: 26	Re: Sigma 15mm F2,8 for UW photography? The Sigma 15mm is an OK lens for film cameras. With Digital and crop factor it will not give you 180 degrees field of view. As canon does not have any Fisheye lens for smaller sensors I would look at the new Tokina 10-17 fisheye zoom. It will give you 180-100 degrees which is optimal for UW. See: Tokina 10-17/3.5-4.5 DX [digital!] New Tokina Lenses Just check that you can get the ports and zoomrings from your underwater housing manufacturer. And check also Wetpixel.com :: Underwater Photography and Videography someone is about to test it UW. __________________ Anders Nygren www.vattenbilder.com Sport Kiss #87
(Offline)

30th October 2006, 07:59	#3 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 884	Re: Sigma 15mm F2,8 for UW photography? That Tokina seems interesting. One reason for the Sigma 15mm was that suitability with 35mm film also. I guess in the future the digital SLRs will also have full size panel. There is no ports for that Tokina yet. Probably they are coming but the lens is so new.
(Offline)

30th October 2006, 08:03	#4 (permalink)
Sue Rebreather World Writer Current Rebreather/s: Megalodon Sport Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Portugal Posts: 161	Re: Sigma 15mm F2,8 for UW photography? I have one Sigma DGFisheye (15mm 1:2.8) that I use in my Canon 20D. I'm pretty happy with it, but you have to deal with vignetting in most photos. __________________ planetad'agua @ http://www.planeta-sub.com The Portuguese Diving Magazine
(Offline)

30th October 2006, 10:49	#5 (permalink)
Nemo1957 New Member Current Rebreather/s: Optima Other Rebreather/s: Join Date: Apr 2006 Location: New York Posts: 84	Re: Sigma 15mm F2,8 for UW photography? The 15MM EX DG will give you 180 on a digital sensor, the older and recently discontinued 15MM EX you will end up with about 110 degrees on your cannon. I just bought one of these to use for doing UW panoramas. Since the distorted corners will be cut off by the smaller sensor you end up with a very wide angle lens and images that are sharp corner to corner. Bottom line it depends on what you intend to do with it. If you need the width or 180 look at the DG version or there might be a port for the Tokina by the time you pull the trigger on a housing.
(Offline)

30th October 2006, 11:38	#6 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 884	Re: Sigma 15mm F2,8 for UW photography? Thanks everyone for the input! This is a great forum indeed! I think I will put an order for the lens. Should it not work with 35mm film and reduced panel digital SLRs too? Last edited by jhaaja : 30th October 2006 at 11:48.
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode