20D with Sigma lenses

I just got my 20 D and tried my Sigma lenses and they work with the 20D, I heard so much about not working with the 10D, anybody else find this. I am just getting used to everything right now. Allot to know. I found that the camera comes a perimeter setting and defaults to 2 which is less contrast, might be the point of some comments

I thought the Olympus was the only camera with a sensor cleaner but this camera has that to.

Does anyone know will hanmdle mono lights. The PC connection says max 270 volts.

I'm afraid that your Canon 20D does not have any sensor cleaner.

The manual explains that it has a sensor cleaner mode, but that is simply a mirror lockup mode that turns off power to the sensor. Then you go in and clean it manally. The camera sensor does not clean itself.

---Bob Gross---

Thanks I miss read it, I didn't think it did but saw the term sensor cleaning and hopped.

Yes, we all hope.

The Canon manuals are so-so, and you have to read the fine print, and then ask questions.

---Bob Gross---

I've never had any problems using my Sigma 12-24 or 50-500 with my 10D.

I have a brand new 28-300 sigma that seems fine.

I think there were (still are?) compatability issues with one or two older sigma lenses - but even then they only had to be sent back for a new chip or something.

Don't think its a big issue.

Newer Sigma lenses will work just fine on any Canon EOS body. Some older Sigma lenses had problems, and some of those were able to be re-chipped to make them work. Those that weren't made dandy paperweights.

I have the Sigma 12-24, and I love it. This was a great leap of faith for me because the first two Sigma lenses I tried on my camera didn't work at all. In fact, I have the 24-60 f/2.8 on order now and expect to have it early next week (holidays notwithstanding).

Well I found out since my post that there is a problem. They worked at first but the 70-300 went error 99 which is a compatablity issue. MY big problem is the 28 to 105 which works but does not focuse properlly it focuses & looks sharp thru the vierw finder but then slightly out in the picture. On my EOS it was sharp as a tack. I would invest in the new lens Canon has for ther digital but you cant get it anywhere.

I am glad to here the 12mm to 24mm works because thats my next lens.

I am fruastrated, paid 1499 for the Camera and my G3 takes sharper pictures. Hey I will figure it out.

Here's the link to Sigma's website:
http://www.sigma-photo.com/
Contact them to determine if your lenses need to be sent back for re-chipping. It's worth it to have them work the way you expect them to.

Either your lenses are really bad, there is something wrong with your camera, or you are doing something wrong.
I upgraded to a Digital Rebel from the G3, and the Rebel had MUCH better picture quality. The 20D is slightly better than the Rebel.

Digital Point and Shoot cameras generally apply a lot more in-camera sharpening than Digital SLR's. Even set to Parameter 1, the 20D photos are apt to be softer coming out of the camera than the considerably sharpened (IMO oversharpened) photos from your G3.

The advantage to this is that you can apply the amount of desired sharpening yourself in a photo editing program and have better control over the end result. Parameter 2 on the 20D sets in-camera sharpening, contrast, saturation and color balance to the 0 setting. You can also set up custom parameters using SET1, SET2 and SET3 via the menu. If you prefer your photos be be very sharp coming right out of the camera, you should set-up one of these custom parameters to taste.

Mark

Mark, MY Sigma 28- 105 was sharp as a tack with my Eos film and it does not seem to be working properly with the 20D, I have seen other photos from Canon lenses and they are super sharp. I am considering getting the Canon 28 to 105 as the Canon new digital is not on the market as of yet. or evewn a new Sigma.