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I have been looking at these 2 lenses as i need a zoom within this range for doing kids portraits. I have heard that the tamron is a very good lens and i like the extra 5 mm range it covers, however, it supposidy work better on a cropped camera which i dont have. Does anybody know why this is and is there anyone using it on a full frame? I could go for the sigma. I have heard many mixed reports abouts it, some saying it is very soft but others saying it is as good as canon L glass. The main things i want out the lenses performance are. 1. sharpness between f8 and f11 and good colourrendition. Also good performance at the wide end with regards to distorsion e.t.c would be good. Any thoughts anyone? Thanks, James
Well generaly the Canon is seen as the best. But if you are only worried about performance at f8 to f11, why not get Canon's 24-105 and get the easier to focus lens. 5mm difference at 70mm too small to worry about, the 4mm difference at the wide end is more important.
Quote: Well generaly the Canon is seen as the best. But if you are only worried about performance at f8 to f11, why not get Canon's 24-105 and get the easier to focus lens.
I have not got the money for the 24-70 as i have decided to use primes for most of my work now. I just need a zoom for kids portraits as i sit down when photographing them so cant move hence i need to zoom. I use black and white backgrounds so corner sharpness on the lens does not really matter. The main thing is that the images are sharp and colourful at the apertures stated. james
Quote: You won't get anything out of the Sigma or Tamron that you couldn't of got from the Canon.
I've owned the Tamron, which is a very good lens but it isn't in the same league as the Canon 24-70mm, which is understandable being as it's a fraction of the price.
But will it get accetabble results? james
I am sorry to say that i bet you wish you hadnt sold the canon 24-70.
With regards to the tamron and sigma i cant say which is better.
Surely the canon 24-105 L is a good choice, lots of people who have this like it. the canon is about 650/700 quid, about what you got for the 24-70.
To put it simply, the results will be (depending on the situation) equal or worse than with the Canon 24 to 70. So if you did not get good results with it then these will be worse. And the next problem is to define acceptable.
If you want a lens it is easier to get good results from I recommend the 24-105. First It does not open as wide so at the 24 to 70 region it has a greater depth of field. Also the IS may help you with kids photo's. and finaly it was designed with the 5D in mind.
If I were to pick one of the pair it would be the sigma.
Why not hire one of the lenses for a day / weekend first.
Just came across this site hire a camera
Dont know if there any good but they are linked with the Sigma official site. But if you are working at F8-11 as you say I would guess all the options would be OK as it the sweet spot of most lenses, so you shouldn't see too much of a difference - if you were to shoot wide open well that its where you would see how good a lens is.
How apt that this subject is mentioned
I purchased a Sigma 24-70 a few weeks ago second hand from a well known and reputable photography supplier
Used it at a friends christening where unfortunately the results were crap...not one sharp image at all)We had back up though)
Sent it back to the supplier and they state that after trying it out it is as good as it gets for a Sigma
Never had a problem with any of my other Sigmas so my personal advice would be to steer well clear of it
The fact that I purchased it second hand should not make any difference...apart from the fact that someone obviously off loaded it.
Took it away on holiday to give it a good try out...results the same
Cheers
Adrian
The lens i need will be for portraiture in the studio only as i have got a 50mm and an 85 mm prime lenses and i am using them for all my location work as i am trying to learn what depth of feild i will get using them for different sorts of location shots and being fixed focal length will help me improve as a photograher. I just need a lens that can produce images on a par in quality with the kids portraits in my portfolio. I do miss my 24-70mm as i have recently been looking back on some images i had taken with it and they look great. I just have this obsession with prime lenses at the moment. I have seen some really good shots on epz that have been taken with the sigma and i think most people would be hard pressed to guess whether these shots had been taken with a sigma or canon equivelant. My business is gearing towards pregnancyportraits and taking fomal portraits at 18th birthday parties e.t.c and for this the primes are my choice but i really do need a lens versatile enough for doing kids portraits. james
Quote: I have seen some really good shots on epz that have been taken with the sigma and i think most people would be hard pressed to guess whether these shots had been taken with a sigma or canon equivelant.
I'd think they would be VERY hard pressed to distinguish from a tiny, compressed jpeg.
All i know is that i did test the canon and sigma 24-70 zooms when i purchased them, back to back on the same camera and the canon was better, to the extent i was prepared to spend the extra.
personally i do also like the idea of the 24 - 105 as the image stabiliser is an atractive option and i like the extra reach, but i cant justify the extra cost right now.
if i was you i would look at the 24 - 105 canon. plenty of people like it, never really heard a bad word about it.
You had the better lens and you sold it. Sounds like you may now be realising that fact. Plenty of people offered to help you by testing the lens, offering advice and you ignored there comments to follow the prime / cheap zoom holly grail.
I am truly sorry that you sold what was a good lens.
This will end in tears as in a few months time you will be posting again saying your getting crappy results from the sigma or tamron.
sorry if this is harsh, its my opinion and you can choose to ignore it.
James
You EMAILED me these same questions days ago ... and I gave you a response based on my experience. I thought I had, briefly .. but accurately answered most of these questions for you.
You sold what THE BEST zoom lens in that focal range a few weeks ago. Everyone told you it was a great lens .. but you simply didnt listen and thought you would get better results from the primes.
I explained that on a full frame any of these lenses will probably show more softness in the corners. I also explained that F8 to F11 is generally the sharpest aperture for most lenses.
I explained the tamron is a VERY GOOD lens ... for the money. It IS NOT as good as the canon, and isn't as sharp wide open, but has good contrast and colour, offers lighter weight, and is actually very sharp when stopped down.
These lenses all display a little bti of distortion ... although you woudl hardly notice it in most circumstances and its easily corrected in photoshop.
As you know I have one of the Tamrom lenses for sale. It's priced £200 and it is a sharp copy. I have had NO ISSUES with it and have taken a lot of shots .. having so9ld quite a few images taken with this lens. I REPEAT though it is NOT AS GOOD as the 24-70mm L from which I have taken sharper images.
On another note I had entertained the 24-105mm F4 lens instead of the 24-70mm but once again this lens, in my experience, isnt quite as sharp as the 24-70mm canon.
If you want sharp then go and buy the 85mm F1.2 .... cos thats just about the sharpest piece of glass Ive ever stuck on a camera ... but wide open miss your focus and its over with.
James ... photography comes down to practice, knowledge and skill. These are things that EVERY photographer develops over time .... no matter is you are a beginner, someone developing their skills, one of EPZ's best or one of the worlds best. Every single one is continually learning and becomming better ....
If you can't take good shots with your equipment then it's probably you as the photographer thats at fault. Not your kit.
Now ... if you want a sharp copy of an affordable 28-75mm you know where I am ... £200 will put it on your camera.
Dan
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