WIDE ANGLE AND ULTRA WIDE ANGLE??

I hope this isn't a dumb question but whats the different between wide angle and ultra wide angle?

In 35mm parlance.. wide angle means anything wider than a 50mm lens...

Thus a 35mm or 28mm are "wide"

When the term "Ultra" is used it once meant anything wider than 28mm... but these days with "crop factors" and 12mm and even some 10mm lenses out there.. people tend to think of "ultra" wide as 17mm or wider....

If you have the 16-35mm in your sig.. you allready are "Ultra-Wide"

...but once you take into account the 1.6 "factor" of your 300D.. your 16mm offers the feild of view of a 25mm lens on 35mm film.. thus rendering your "ultra" as merely "wide" by todays standards...

Probably the only "ultrawide" lenses for the DRebel/10D (if you discard fisheye lenses) are the Canon 14mm prime and the Sigma 12-24 zoom. I've never used the Canon 14, and probably will never use one because the cost, but the true ultrawideangle shots provided by my 12-24 are very welcomed in this 1.6x crop world .

Guillermo Freige wrote:
Probably the only "ultrawide" lenses for the DRebel/10D (if you discard fisheye lenses) are the Canon 14mm prime and the Sigma 12-24 zoom. I've never used the Canon 14, and probably will never use one because the cost, but the true ultrawideangle shots provided by my 12-24 are very welcomed in this 1.6x crop world .

Hi Guillermo,

I checked out your photos shot with the Sigma 12-24, and I'm very impressed. Are you happy with this lens? I'm currently trying to decide between the Sigma or Canon 17-40 4.0L. Have you experienced any problems/quirks with the Sigma? Thanks

Alan

Alan,

Like Guillermo I also have the Sigma 12-24mm. I love this lens, mainly as it gives me back proper wide angle angle again.

I've had no problems with it at all running on a 10D.

One issue you may come across is that generally speaking, you cannot easily fit filters up front. You either need to use rear gelatins or use something that can slide over the front of the lens to hold filters without vignetting.

Cheers

Ian

Guillermo Freige wrote:
Probably the only "ultrawide" lenses for the DRebel/10D (if you discard fisheye lenses) are the Canon 14mm prime and the Sigma 12-24 zoom. I've never used the Canon 14, and probably will never use one because the cost, but the true ultrawideangle shots provided by my 12-24 are very welcomed in this 1.6x crop world .

Don't forget the Tamron 14mm f2.8. It caught my eye when I tried one out, and for the difference in price between it and the Canon ($1000 vs. $1800) it is worth a look. Used (KEH.com had one as recently as yesterday for $725), it can be quite a find.

I was warned away from the Sigma 12-24, and I am really more pleased with a prime lens at this focal length anyhow. 8)

Have Fun,

I have read a number of reviews, some very good and others not so good. However, I have looked at Ian's and Guillermo's photos with the Sigma 12-24, and am quite impressed with the picture quality, so that is why I have been asking about problems because I don't really see any in the photos (?). Also, the lower end of the 12-24 looks real temting to me right now, as I want to go as wide as I can get, not just for landscapes, but for special effects as well.

Alan

As a known Canon bigot and someone who wants to use his equipment for years to come [Shields up], it wouldn't take much to keep me away from a Sigma lens. Their well-known issues with the EOS lens mount are enough, but the $1800 price tag for the Canon 14mm got me to thinking I may have to give in. However, the 12-24 is a maximum f4.5-5.6 lens, and I absolutely want something faster than that.

When I tried out the Tamron at a local camera store, I mentioned the Sigma 12-24, and another customer said it was soft at the wide end. Scientific? No. Definitive? No. Was he a Tamron Rep? I don't think so. But what I saw through my cameras (I tried it on the Drebel as well as my full-frame Elan 7) was enough to convince me that my best choice for a non-Canon lens did not have to be a Sigma, even though they have the widest range of lenses. [Shields down]

I hope it works out for you, let us know.

Have Fun,

I definitely like the 12-24, it`s one of my favorite lenses and the main one for landscapes. Low CA and consistent sharpness at all apertures and focal lenghts. Build quality is very good, and it has a good feeling too. My only complaint is about some flare issues at 12mm, but it isn`t a surprise in such a wideangle zoom.