glenn_wright

<p>Is it making a <em>relatively </em>loud-ish whining noise when the IS is engaged and you make sudden left/right or up/down movements with the camera? If so, this is normal as it's the IS trying to keep a steady image, but it's not designed to compensate for that kind of movement like the 2 mode telephotos. I have the 100L and mine does it if I make panning type movements.</p>

<p>If it's making the noise while just holding it though, then I would let Canon have a look.</p>

<p>Good luck!</p>

 

<p>Mars C...</p>

<p>I'm afraid I have to take exception to your comment "<em>24-105 is prone to error 01 kind of failure</em>".</p>

<p>That comment alone suggests that all of them are poorly built and it's liable to become faulty. I'm sure Canon have sold 10's of thousands of this lens and like any other technology, there will be the odd FEW that develops a fault. I've looked on Google and there are a few cases, but the key word there is <em>few. </em>A tiny percentage of the volumes they've sold. But the more you sell, proportionately you'll end up with more faulty ones. Hence it appears it's worse than it really is. I bet if you did a search of any piece of electronic/photographic equipment you'll find posts where theirs has unfortunately gone wrong, but it doesn't mean it's endemic. It's a wonder anyone buys anything with some of the crap floating around on the internet.</p>

<p>I feel for you that yours developed a fault, but don't tar all the 24-105s with the same brush. It's comments like that that lead to so many spurious reputations on the internet and they don't go away.</p>

<p>The 24-105L is a superb lens for the tasks it's designed for and I highly recommend it. If it goes wrong, so be it, that's life.</p>

<p><em><a href="../photodb/user?user_id=603115">Dave Collett</a> , Aug 10, 2010; 11:34 a.m.</em><br>

<em>And perhaps a sharp 24-105 f/4 L.</em></p>

<p>Daftest comment I've seen a forum for a long time! Mine's sharp and pretty much everyone else who has one says it's sharp. If yours isn't (if you have one) then send it to Canon or if it's new, get a replacement.<em><br /></em></p>

 

<p><em><br /></em></p>

 

<p>I have the 5D MkII and I bought the 100mm L IS shortly after it's launch and I think it's stunning as BOTH a macro and general purpose medium telephoto. It's as sharp as a tack at all distances and apertures. When used as a medium telephoto the bokeh is very pleasing and smooth. Auto focus speed isn't an issue when the focus limiter is set to the correct setting for what you're using it for. As a side note, I sold my 135mm f2 to get this lens and I haven't regretted a minute of it. Highly recommended!</p>

<p>Nope, it's probably one of Canon's most available L series lenses. Plenty of high street stores have stocks. Buying from abroad isn't worth it in my opinion.</p>

<p>None<br>

90% AV<br>

10% TV</p>

<p>Hendra,</p>

<p>I've also read many discussions on apparent focussing problems with the Sigma, but I have two theories to those.<br /> 1) Of the many 1000's of units Sigma must have sold of this lens, you'll only hear of the few who have had problems. All those satisfied customers aren't going to complain are they?</p>

<p>2) It's a different beast of a lens and I think a lot boils down to technique. Remember it has razor thin depth of field. It took me a while to learn how to use the Canon 135mm f2 L because of the thin depth of field with that lens, but it was ultimately rewarding when I got it right.</p>

<p>I'm not saying that people who did have problems have poor technique, there will be bad copies about and Canon is no stranger to bad copies either. It's just some people immediately blame the equipment first, especially if they've read somewhere<em> that the Sigma 50mm f1.4 it has focussing problems</em> . It's human nature!</p>

<p>Finally, Canon haven't released or announced a new 50mm f1.4 recently. It's still the same one that first appeared in the 90's.</p>

<p>Edit:</p>

<p>I'd just like to post this link to a very interesting article lens issues;</p>

<p>http://www.lensrentals.com/news/2008.12.22/this-lens-is-soft-and-other-myths</p>

<p> </p>

<p>2 years minimum IMHO</p>

<p>Biliana, "<em>Are you saying dear Glenn that the new 50mm 1.4 serie is better now? that is good to hear as I would like to buy one myself ;)"</em></p>

<p>I'm afraid not. The design hasn't changed since it was launched. You take your chances. I'm actually looking at the Sigma 1.4 as an alternative.</p>

<p>Unfortunately, I've had two 50mm 1.4 and both AF mechanisms broke on me. It's renowned for not having a particularly robust focussing mechanism. I would have it checked out with Canon. Sorry I couldn't bring you better news.</p>

<p><em>......Why would people need, or want, to swap their 135mm f2 lenses for the new 100mm f2.8 IS L? They aren't THAT interchangeable and I can certainly see a place for both.</em></p>

<p>I'll answer that for you<em>. </em> As much as I loved the 135L, I found it sat in my bag a bit too much as I found the focal length a touch too long for my tastes when I used it for portraits and not really long enough for my other interest, widlife/nature. </p>

<p>Having dabbled with macro in the past and quite enjoyed that aspect of photography as well , the release of the 100L, was for me, a no brainer. A slighter shorter FL which I prefer for portraits and with the macro capability for close up wildlife/nature shots. As I mentioned previously, it is a great <em>all round </em> lens with the added bonus of IS for MY type of photography. YMMV however.</p>

<p>Well, I DID swop my 135L for the 100mm Macro IS L and I haven't regretted it for a minute. The 100 is sharper wide open than the 135 IMHO (well, it is one stop slower) and the IS is a bonus. The bokeh is excellent and when used for portraits the loss of a stop is minimal. It's excellent as a medium telephoto as well macro. Beware though when using for portraiture, it is so sharp that any blemish on the subjects skin will be visible! For me it's the PERFECT all round medium telephoto.</p>

<p>Jorg,<br>

It was my pleasure to help. Have fun with your lens, it's a beauty! Happy shooting!</p>

<p>Jorg,<br>

The IS is louder on my 100mm L compared to my 24-105mm L when moving about, but that's due to the 100's IS having to work harder because it has to compensate more for shift <em>and</em> angular correction. Again, nothing to worry about. However, that's nothing compared to the 300mm f4 L IS which is very loud compared to newer lenses, but it is 1st generation IS which is 11 years old now.</p>

<p>Jorg,<br /> I have the 100mm L IS and I can tell you the rattling when held vertically is perfectly <em>normal</em> . I, like you was concerned when I first noticed it and I did a bit of research, posted the question in a couple of other forums and went to a couple of dealers to <em>rattle </em> theirs and they did. It's the new IS system as the elements have to move perpendicular to the light path. So they have to move side to side freely as well is tilting to counter the effects of camera shake. So when you hold the lens vertically, the IS elements are actually sitting centred so when you gently shake it, they move side to side. turn the lens horizontally, they don't. But when you attach the lens to your camera and power it up, the rattling stops as the IS is engaged and all you'll hear is that whirring sound you mentioned. Basically, you have nothing to worry about. Good luck with your new tool, it's a fabulous lens!</p>