DPChallenge: A Digital Photography Contest You are not logged in. (log in or register) 
 

DPChallenge Forums >> Hardware and Software >> Wide angle for 20D and 5D?
Pages:  
Showing posts 1 - 25 of 38, (reverse)
AuthorThread
 05/28/2006 04:35:59 PM · #1
Looking to fill in the gap in the wide angle lens group. I currently shoot the 20D but I'm sure will upgrade to fullsize sensor and want a lens that will be great for both. I'm very pleased with my Sigma 24-70 EX DG and my Canon 70-200 f/4L, both are very sharp with great contrast and color. Soooo I think either the Canon or Sigma is where I'll stay. Need something to fill in the 10 or 12 to 24mm zoom area. Suggestions and recommendations for those who have such a lens is appreciated. Thanks.
 05/28/2006 04:38:08 PM · #2
sigma makes a nice 12-24 zoom
 05/28/2006 04:51:53 PM · #3
Going for the 5D, huh?!? I wonder if I helped play a part in that thought process back at the Moab GTG. :-)

On my 20D I really liked my 17-85mm lens. The range was good and the wide angle was sufficient (though I still lust after that Canon 10-22mm lens!).

Unfortunately, The 17-85mm lens is an EF-S lens and so it doesn't fit on my 5D. So I immediately needed a new lens when I bought the 5D. In order to get a good quality (and fast 2.8) lens, I went for the Canon 24-70L 2.8 which gives me nearly equivalent wide angle - but I still miss the long end. Another good choice is the 24-105 which would be more comparable in terms of range. My only reason for not going that route was the desire to have a fast 2.8 lens. When shooting weddings, I need all the light I can get.
05/28/2006 04:53:37 PM · #4
Don't forget your 24-70 will be quite wide on a FF camera.

The 12-24 sigma is nice, and will be crazy-wide on a FF body. :-).

05/28/2006 05:05:40 PM · #5
Uh, yeah. What KiwiChris said. :-)

I replied too quick and didn't read the part where you were looking for something in the 10-24mm range - which will be VERY wide on a FF camera. Wait until you see your Sigma 24-70 on a FF camera and you might decide you don't need the extra wide angle.

On the other hand, I rented a 15mm fisheye last weekend. I had previously used it on the 20D where the 1.6x crop makes it lose a lot of its effect. On the 5D it was a lot of fun!
 05/28/2006 05:29:33 PM · #6
I really like the 17-40mm f/4L on my 5D. It worked great on my 10D too, but the real wiiiiiideness was missing. I may replace the 17-40 with a 16-35 f/2.8L some day, but so far I haven't missed the extra speed.
 05/28/2006 05:41:30 PM · #7
I don't think ANY of the 10-22, 12-20mm and other 10+mm lenses fit on a fullframe camera, I think they are all EF-S lenses.

I think the only thing wider than the 17-40 that fits on the 5D is the 14mm f2.8 L and it's about $1600 ;)

I'd go for the 17-40L and be happy with it, I used it on my 20D and I use it on my 5D now, the only difference is that it's really WIDE on the 5D ;)
 05/28/2006 05:44:18 PM · #8
I could be wrong but I think the Sigma 12-24 will work on an FF camera.
 05/28/2006 08:20:40 PM · #9
I have sigma 12-24 but i don't have FF yet, it fits on FF and gives you ..... OH SHIT W.A.
 05/28/2006 08:54:05 PM · #10
Originally posted by DanSig:
I don't think ANY of the 10-22, 12-20mm and other 10+mm lenses fit on a fullframe camera, I think they are all EF-S lenses.


The Sigma 12-24 fits on any camera, the sensor size doesn't matter. Why do you think I recommended it?
 05/28/2006 09:09:13 PM · #11
I've got a 5D and a Sigma 12-24. It works well. However, there's a noticable amount of vignetting, but you can correct this in PP if you don't like it.
 05/28/2006 09:33:59 PM · #12
I have the Tokina 12-24 and it is a great lens.
 05/28/2006 10:04:46 PM · #13
Originally posted by hankk:
I've got a 5D and a Sigma 12-24. It works well. However, there's a noticable amount of vignetting, but you can correct this in PP if you don't like it.


Are you removing the entire lens cap? The lens has a 2 piece cap. I know it will vignette if you only remove the inner cap, but it should not if you remove the entire thing and expose the built-in petal hood.
 05/28/2006 10:09:15 PM · #14
Originally posted by cpanaioti:
I could be wrong but I think the Sigma 12-24 will work on an FF camera.

yes and it's the only one that does work on FF.
 05/29/2006 04:43:07 AM · #15
I have the 17-40 L and with the 5D you get some really wide angled shots great lense for FF cameras especialy with the zoom as well.
 05/29/2006 05:00:42 AM · #16
If you want really, really wide, I'll second (or third or fourth...) the Sigma 12-24. I know that it's come in for a bit of a pasting in some tests that I've seen, but all I can say to that is that the one that I had was superb. I had a shot taken with it on a 20D printed at 20" by 30" and it looks just fine. Unfortunately, I lack the imagination to make the best use of such wide angle.
 05/29/2006 09:20:37 AM · #17
I love my Sigma 12-24mm. It's really fab on my film camera... come on Sony, let's have a full-frame body!
 05/29/2006 07:06:43 PM · #18
Originally posted by Spazmo99:
Originally posted by hankk:
I've got a 5D and a Sigma 12-24. It works well. However, there's a noticable amount of vignetting, but you can correct this in PP if you don't like it.


Are you removing the entire lens cap? The lens has a 2 piece cap. I know it will vignette if you only remove the inner cap, but it should not if you remove the entire thing and expose the built-in petal hood.

If you leave the outer cap on, you get a circular picture, with a blurry edge. That's mechanical vignetting.

If you take the outer cap off, you get a FF picture, but the edges and especially corners are darker than the center. Thats optical (or possibly natural) vignetting. If you look at the area that is about a 1.6 center crop, there is much less vignetting.

See //www.vanwalree.com/optics/vignetting.html for more details.
 05/29/2006 08:33:47 PM · #19
Originally posted by hankk:
I've got a 5D and a Sigma 12-24. It works well. However, there's a noticable amount of vignetting, but you can correct this in PP if you don't like it.


Most lenses vignette on the 5D.
 05/29/2006 09:32:05 PM · #20
Originally posted by TechnoShroom:
Originally posted by hankk:
I've got a 5D and a Sigma 12-24. It works well. However, there's a noticable amount of vignetting, but you can correct this in PP if you don't like it.


Most lenses vignette on the 5D.


Can you elaborate at all on that? Personal experience, references, etc?
 05/29/2006 11:01:00 PM · #21
It's been widely reported and discussed on other forums and is quite normal for full frame cameras.
 05/29/2006 11:04:53 PM · #22
The problem is with vignetting on the 5d and other 35mm sensor digital cameras is that each pixel is like a dish...and exposed to light so differently than a flat piece of film...so the 'dishes' at the ends don't have light entering them at the right angle, so that causes vignetting.

I think it's something they're working on, they were talking about somehow angling them, and also about making the 'dishes' shallower to allow the light to enter them easier.
 05/29/2006 11:20:35 PM · #23
Originally posted by deapee:
The problem is with vignetting on the 5d and other 35mm sensor digital cameras is that each pixel...


It's not a sensor issue but a lens issue. It occurs with film cameras as well.
 05/29/2006 11:25:03 PM · #24
Well... yes, vignetting is partially a lens issue. But the issue deapee is desribing is unique to sensors. Because each sensor is "bucket shaped" the light from an angle cannot fall directly to the bottom of the bucket where the sensor is. So light coming in from an angle tends to be cut off.

However, sensor manufacturers have partially gotten around this by placing tiny lenses atop each individual pixel, focusing the light down into the bucket. So it's not as much of an issue as it would be. But it is still more noticeable on a FF camera than on a 1.6x crop because the FF has light coming in at a greater angle along the edges.
 05/29/2006 11:26:03 PM · #25
Originally posted by TechnoShroom:
Most lenses vignette on the 5D.


Originally posted by TechnoShroom:
It's been widely reported and discussed on other forums and is quite normal for full frame cameras.


Originally posted by TechnoShroom:
It's not a sensor issue but a lens issue. It occurs with film cameras as well.


Actually, it IS a sensor issue, and it's for the reason that I described above. Are you actually arguing with yourself? I'd suggest you go do some research.
Pages:  
Current Server Time: 04/02/2025 01:54:05 PM

Please log in or register to post to the forums.


Home - Challenges - Community - League - Photos - Cameras - Lenses - Learn - Help - Terms of Use - Privacy - Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 04/02/2025 01:54:05 PM EDT.