fravin

<p>While I'm shooting with an 70D, my opinion is about these lens in APSC sized sensors.<br>

The 24-105L is a great lens. I had one a few years ago and some of my bright pictures was shot with it. The IS works fine, you can get 3 stops while handheld. Contrast is absolutely good and sharpness is very good.<br>

The 17-40L I never had. I was planning to buy one this month. So I drove to the camera shop and the guy give me some time to try it, and then give me the new Sigma 18-35 Art. The 17-40 looks and feels like a war tank, the zoom ring runs fine and AF is quite fast. But the Sigma toke my heart.<br>

Anyway, I think you will love the 24-205L.</p>

<p>Look at the same image with no Noise treatment. <br>

Canon 70D = Sigma 18-35 f1.8 = 1/50 = f4 = ISO 2000 </p><div></div>

<p>I love the Willian answer. I do not care about noise. It's part of the composition. You only need to learn how to deal with it. I should prefer High ISO settings, with no thinking.<br>

Talking about post-processing, I was amazed about the DxoPro work. The Reduce Noise Prime function is so marvelous that I'm really impressed. Take a look in this 100% crop of this shot I take while testing the Sigma 18-35 f1.8 focus in my 70D. It's pretty amazing how the image kept sharpness and eliminate the color noise.<br>

Wonderful, isn't it?</p><div></div>

<p>In the early digital days, the solutions were quite simple. Aperture was launched in a time when the other solutions only converted files where it were. I remember the launching adds telling me that working with a unique catalog was possible using photo books, album, digital light tables...<br>

Then Capture One raised as a big deal, giving some lost details.<br>

Adobe launched LR, Dxo appeared...</p>

<p>And I still waiting for the perfect solution, but I'm sure that it will never come. </p>

<p>Why don't you consider the 2.8 version of 70-200?<br>

It's the best IQ in Canon line. The f4 is a great lens with fantastic contrast and sharpness, but the 2.8 is amazing.</p>

<p>I was looking for one of those ultra wide to fit in may 70D: 16:35L - 17-40L -17-55 2.8, but at the camera shop the guy give me that sigma 18-35 1.8 to feel it. After a few test shots I bought it. <br>

Sigma had made a fantastic job with this lens. It's quite sharp at the borders, and impressively sharp at the center. The image are brilliant and well contrasted. Fantastic Lenses. You should try it before buying the new 16-35...</p>

<p>The 24-105 was one of my favourite lenses in last years. <br>

It's not as that fast, but it is sharp enough to give you good pictures. The contrast of this lenses is also fantastic. <br>

This year I replaced it with a combo, Sigma 18-35 1.8 ART + Canon 50mm 1.4 + Canon 70-200 4.<br>

I'm happy with the results of this combo, bright and colourful images.</p>

<p>DXO has two versions, both with the same features and tools, but the first one is for a limited number of cameras (basically the semi-pro cameras), and an Elite version that support FF and advanced cameras. <br>

I'm trying it. I've been using C1 for years, but decided to give DXO a try.</p>

<p>Hello Guys, thats my first post here!</p>

<p>I also bought a 70D to replace my old fella 50D. One of the first insights was: 'the hell, they shrink it! <br>

The 70D is much smaller and maybe lighter than the 50D. It's strange, the camera feels like a boosted rebel, but definitively is not the same solid feel. <br>

I'm using a heavy lens, and the small sized 70D disappeared behind it. Odd.</p>