The flood of reviews for the brand new Canon EF 11-24mm f/4L continue to roll in, I don’t think I’ve ever read so many reviews for a single lens in my life. This time, we’re sharing Tim Dodd’s review, who has provided some real world, working photographer points of view on this lens.</p>
<p>Tim is also probably the first to drop and break the <a href="http://www.bhphotovideo.com/c/product/1116125-REG/canon_9534b001_lens_cap_for_11_24mm.html/bi/2466/kbid/3296" target="_blank">big front lens cap</a> on the EF 11-24mm f/4L, that has to count for something!</p>
<blockquote><p>So to sum up: Canon has produced a lens that’s as sharp or sharper than its prime counterparts. Although slower (F stop wise). It has chromatic aberration and distortion well under control. Vignetting is probably its biggest fault. But, that’s probably the easiest thing to have fixed in post, so I’m not shaken by that.</p>
<p>It’s a heavy, big lens that might be intimidating to some. It’s very front heavy–so heavy in fact it fell out of my shoulder bag already…</p></blockquote>
<p><a href="http://timdoddphotography.com/blog/canon-11-24-f4l" target="_blank">Read the full review</a> | Canon EF 11-24mm f/4L USM $2999: <a href="http://adorama.evyy.net/c/60085/51926/1036?u=http://www.adorama.com/CA11244.html" target="_blank">Adorama</a> | <a href="http://www.bhphotovideo.com/c/product/1119028-REG/canon_9520b002_ef_11_24mm_f_4l_usm.html/bi/2466/kbid/3296" target="_blank">B&H Photo</a> | <a href="http://www.amazon.com/gp/product/B00T3ERXKE/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00T3ERXKE&linkCode=as2&tag=canorumo-20&linkId=SKIW33AKPAGADHBN" target="_blank">Amazon</a></p>

While at CP+ last month in Japan, DPReview had the privilege of touring a Sigma lens factory in Aizu, Japan. We’ve all seen lens factories before, but I never get bored of looking at them.</p>
<blockquote><p>Mr Yamaki’s philosophy for Sigma is inherited from his father, Michihiro Yamaki, who died in 2012. It can be summed up in four words: ‘small office, big factory’. The great majority of Sigma’s employees in Japan are involved directly in creating its products, and the company maintains a relatively small administrative staff.</p></blockquote>
<p>Sigma has their next Art series lens, the <a href="http://www.bhphotovideo.com/c/product/1120085-REG/sigma_24mm_f_1_4_dg_hsm.html/bi/2466/kbid/3296" target="_blank">24mm f/1.4 DG Art</a> hitting stores by the end of March for the Canon mount.</p>
<p><strong><a href="http://www.dpreview.com/articles/0773575852/making-art-inside-sigma-s-lens-factory" target="_blank">See the tour at DPReview</a></strong></p>
<p> </p>

Before the Canon PowerShot SX60 HS hit the market last fall, there had been rumblings that it would have a 100x zoom, but it *only* came with 65x zoom which worked out to a focal length of 24-1365mm. <a href="http://www.canonrumors.com/2013/12/whos-ready-for-a-100x-zoom-powershot/">There was a patent for a 100x zoom optical formula</a> at that time, but I guess it wasn’t ready for market. Now, another 100x zoom patent has come to light, this time with a 24-2400mm focal length when factoring in the 1/2.3″ sensor.</p>
<p><strong>Patent Publication No. 2014-174524 (Machine Translated)</strong></p>
<ul>
<li>Published 2014.9.22</li>
<li>Filing date 2013.3.13</li>
<li>Zoom ratio 98.52</li>
<li>The focal length f = 3.07 53.41 302.40mm</li>
<li>Fno. 1.85 8.14 9.00</li>
<li>Half angle ω = 36.2 2.40 0.50 °</li>
<li>Overall length of the lens 110.05mm</li>
<li>BF 12.67 27.40 5.19mm</li>
<li>4-group zoom of positive and negative, positive</li>
<li>Inner zoom (the second group, the third group)</li>
<li>Rear focus (fourth group)</li>
<li>Anti-vibration (third group)</li>
</ul>
<p>Could the PowerShot SX70 HS get a 100x zoom? Nikon has brought us the <a href="http://www.bhphotovideo.com/c/product/1127274-REG/nikon_26499_coolpix_p900_digital_camera.html/bi/2466/kbid/3296" target="_blank">83x zoom Coolpix P900</a>, so it only makes sense that Canon will try to outdo the P900 when the next iteration of the popular megazoom PowerShot gets unveiled, which isn’t going to be for a while yet.</p>
<p>Source: [<a href="http://egami.blog.so-net.ne.jp/2015-03-09">Egami</a>]</p>

Keith at Northlight has completed his initial review of the Canon EF 11-24mm f/4L. In case you’re wondering, ours won’t be done until early April. Keith’s review has lots of sample images and a great mix of technical goodies and real world thoughts.</p>
<p><strong>From Northlight</strong></p>
<blockquote><p>“The lens is impressive on so many levels – not least of which is the solidity when you pick it up.</p>
<p>I was initially expecting to see rather more basic distortion (barrel/pincushion) in the image at different focal lengths, I mean, this is what you often get with wider zooms?</p>
<p>Well no, the performance is what I’d expect from a decent prime lens right across the focal length range. We’ll have to wait for the detailed optical analysis to come in to see for sure, but from my initial week of using the lens, it’s performed excellently.”</p></blockquote>
<p><strong><a href="http://www.northlight-images.co.uk/reviews/lenses/canon_ef11-24f4l.html" target="_blank">Read the full review</a></strong></p>
<p><strong><span style="color: #ff0000;">c</span>r</strong></p>