Hello! Now i try to "work" with eos 350d with kit 18-55 IS lens. Thinking about upgrade to 650d with new subj lens, but cannot find info, how it works in comparison with 18-55 (IS) kit one - it is better in all range, or not in all cases and so on. Epecially interested in microstocks area - picture quality, CA on wide end and open diaphragme and so on.
Now: Canon EOS 450D, kit EF-S 18-55 IS,Canon EF-S 55-250 IS S...
Drago76, my wife has a T3 with your lenses, its a very nice lens, for what I´ve seen, but the range is too limited for her, so I researched and convinced her to upgrade to a 18-135 STM. For what I researched its way better than the older version of the 18-135 (which is not STM), which had a lot of distortion. According to the reviews I read, it presented some distortion near the 18mm range, but this is something you can fix in your software (this fix will decrease a bit of the sharpness though). I noticed the 18-55 has a lot of CA in harsh contrast conditions, (but very few in normal conditions) I don´t expect this new lens to be any different, not worse, not better. In terms of overall quality, I suspect the 18-55 is probably better than the 18-135, the range is too different and there is always a compromise on those big zooms, but I don´t think its quite noticeable, at least on hers T3 that has only 10Mpixels resolution. If you want to see a diference in the lens, than you would need to go to an L grade, the 17-40 and/or a 24-105. Yes, I´ve heard the 17-55 is a wonderful lens as well, but prone to acumulate dust, if that´s not a problem to you, you could give it a try.
So, resuming: From the 18-55 to the 18-135, qualitywise probably you wont see any difference and you have more zoom. From the 18-55 to the 17-55, for all the reviews and tests I saw, its a nice upgrade, but you wont have the extra zoom and this lens doesnt come as a kit If you really want to see a big difference than consider upgrading to an L grade lens.
I dont know about the 18-55 IS , I own a canon 18-135 IS which is the kit lens for the 600d and the main complain i have about this lens is a huge chromatic aberration at all focal lenghts which force me to fix it in post-processing.
My main lens is a Canon 28-135 IS left over from my last 35mm SLR. It serves well but will be updated soon. I played with an 18-135 STM in a camera store but didn't take any photos so I have no opinion on the IQ. The lens seemed to be pretty well made and everything worked smoothly but had no full time manual (important for me) and it is only 18mm. 2 or 3 mm in that range can make a huge difference.
I had an old style 18-55 kit lens which was not very good. I found a used body in a camera store with the newer IS version of the kit lens and talked them into trading for $10. The IS is really good and very quiet and the IQ is improved. It feels cheap but works well. I want something better but this is good enough to wait until I can buy some L glass.
If it were me with your lens, I wouldn't buy the 18-135. I'd get a 15-85 IS or a 17-55 IS 2.8. Might as well upgrade instead of crossgrade.
Quoted Message: I dont know about the 18-55 IS , I own a canon 18-135 IS which is the kit lens for the 600d and the main complain i have about this lens is a huge chromatic aberration at all focal lenghts which force me to fix it in post-processing.
I have just got the lens as well and noticed I had the same problem with noise, I had never seen it with my old lens, canon 17-85mm (which broke). I thought it must be the camera but now I wonder if it is the lens, as it is a bit of a coincidence.
Check photozone.de - they produce very good lens reviews. According to them the new (STM) version of 18-135mm is much better optically (and is now on par with 18-55 IS and 55-250 IS) than the old, non-STM version. So if your goal is to replace two kit lenses (18-55 and 55-250) with one, without loosing IQ, 18-135 STM looks like a good choice.
But if you goal is to get better quality + faster optics, you should probably consider 17-5x f2.8 zooms - Tamron (non-VC), Sigma OS, or Canon.