Great option for t2i kit lens

The exposure on these grabs seems off, the outside pics are over and the inside under.

What Picture Style did you shoot this with?

It would be better IMHO to get a nikon AIS 75-150mm f3.5 and buy the kit lens for around the same price as the sigma, this gives you a wider range of telephoto to play with... Just my 2 cents.
 
Shots outside look overexposed, inside look underexposed.

Honestly these are not a good example to judge, because these pictures do not look very good. Also by reading many reviews people state the Canon Kit Lens is a SHARPER lens overall. It's not always about F-stop, as the most important thing is lens clarity. You can Always add light, but you can't fix image quality from a not so sharp lens
 
With full daylight you should start with 100 ISO and work your way up to higher settings as you need to as you light decreases. It's also very easy to over expose using the view screen to judge your exposure. Try to use your camera's light meter to determine your exposure first, then shoot.
 
Didn't use ND glass. Think I wrote that at least 2 times... :laugh:Testing a lens here, not stuffing any stuff on the stuff!

...and it's not stills, video grabs. Not very interesting shots, but it's a lens test, you usually want to know about things such as distortion, color, light, etc. And no, the Canon kit lens is NOT a sharp lens compared to this one. Canon 18-55 sucks for stills.

I thought we were interested in HDSLR video is this section, and in particular lens performance. But maybe I missed something ;)

You can Always add light, but you can't fix image quality from a not so sharp lens

Any modern lens will work fine for video. It's not even 2 megapix on current gen cameras. And with stating the obvious, it should also be noted that CA can "awoke from its pit" on very sharp lenses. Ofc other aspects that would make one want to use the best stuff, but no, it's not sharpness.

edit: To clarify, I'm not saying sharpness isn't important (and there's enough threads about THIS on dvxuser........), but it comes down to what you're shooting and personal preference.

Oh, and it's a great kit lens replacement, did I mention that? :laugh:
 
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Yeah, but if parts are blown out, its hard to tell anything about the lens's quality, including color rendition, sharpness, etc.

Yeah, 1080p is around 2MP, but on a 18MP sensor downrezzed, you need a sharp lens to get good quality video.

The Canon 18-55mm IS, at least for me, is pretty sharp stopped down. Definitely usable as a bit of a wide angle.
 
I am in no way attacking your decision to replace the kit lens with this (it's not the way I would go but I like fixed aperture lenses so who am I to judge anyway...). I am asking for better video stills to judge the lens you have by. ROCKMORE is right, you should be shooting at 100 ISO outside then stop the lens down from there to decrease video noise in the image. Try and shoot another test with the lens, nail the exposure, if you have a kit lens to compare it with do so (a side by side comparison is only fair when making claims like this) and put the lenses to the test for real, give us aperture, ISO, picture style, focal length etc... I'd be excited to see the results!:thumbsup:
 
I replaced the 7D kit with the Tamron 17-50 2.8 and can't imagine why I should ever have gotten the much slower (both in aperture and auto focusing) kit lens.

To me it's a no brainer, don't get the kit, get the much better constant aperture zooms for only a little bit more.
 
I replaced the 7D kit with the Tamron 17-50 2.8 and can't imagine why I should ever have gotten the much slower (both in aperture and auto focusing) kit lens.

To me it's a no brainer, don't get the kit, get the much better constant aperture zooms for only a little bit more.


The kit lens on the T2i only cost $100 more from body only. The Kit lens on the 7D cost about $200 more from the body only.


The Tamron 17-50 2.8 VC cost over $600+
http://www.amazon.com/Tamron-17-50m...2?ie=UTF8&s=electronics&qid=1276550295&sr=8-2

The Non VC version cost about $400+
http://www.amazon.com/Tamron-17-50m...1?s=electronics&ie=UTF8&qid=1276550478&sr=1-1


So your statement on ONLY a "little bit" more imo is incorrect.
 
Money is subjective and should be looked at as such. There needs to be a price range ie: for 200 you could get this or this. I still think the OP needs to have a chance to prove his point by doing a side by side comparison of the two lenses in question.
 
The kit lens is a no brainer for a hundred bucks. I added the 50mm 1.8 yesterday which is the second no brainer for another hundred. If you are a collector with unlimited funds, buy every premium lens you can find. If not, get these two lenses, shoot, learn, then buy what you really need.
After working with the 50 1.8 last night for a few hours, reality hit me in the face and I'm back to basic thinking.
All I need for my work is sharp prime lenses. 18mm / 20mm / 24mm / 35mm / 50mm / 85mm / 135mm / 200mm / 300mm. As fast as I can afford, then sell and upgrade later.
 
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