Sigma Announces 50mm F1.4 EX DG HSM

zincozinco wrote in post #7502117
Its a great lens, not very fast for focusing because you have to make it focus... so its not action but for portraits in lowlights its great, if you have a bit of time that is... rendering is superb. mines a keeper until i find about 700 euros lying around and get the L

edit I would never with my copy put it AI Servo, that would be a lottery... need to check the focus before pressing fully....

When it first came out I thought eveyone was saying the focus was very fast.

canon shooter wrote in post #7509425
When it first came out I thought eveyone was saying the focus was very fast.

It focuses pretty fast - almost as fast as my Canon 50mm f/1.4. However, that ring HSM motor has work a bit harder than Canon's micro USM motor because the glass is so much bigger.

I also hoped it would focus faster and better than my Canon lens but that is not what I found, it's if anything a bit slower, it's less precise and it searches a bit. To me the things it has going for it is slightly better sharpness f/1.4 to f/2, better bokeh and better build. The Canon lens equals or betters it in all other areas including price.

canon shooter wrote in post #7509425
When it first came out I thought eveyone was saying the focus was very fast.

its not that it doesnt focus fast its just that it focuses oooooooooffff i need to wiggle mine to get the proper focus.....

Tony-S wrote in post #7509643
It focuses pretty fast - almost as fast as my Canon 50mm f/1.4. However, that ring HSM motor has work a bit harder than Canon's micro USM motor because the glass is so much bigger.

Hey dude! is your ef50f/1.5 *still* soft? how many times did it visit irvine ? Maybe getting a 50D and do microadjustments should do.

Yeah, but only at f/1.4-f/1.6. It's CA, and no amount of Irvine Love (TM) will fix it. It's going up for sale soon.

Tony-S wrote in post #7512613
Yeah, but only at f/1.4-f/1.6. It's CA, and no amount of Irvine Love (TM) will fix it. It's going up for sale soon.

Check this...notice how the CA lower when subject is in focus...

https://photography-on-the.net …hp?p=6901012&po​stcount=67

Hi guys. How is the AF consistency on your copies of this lens? If you take a few shots of the same subject with camera on tripod and re-focus before each shot, does focus shift around? Assuming lens has no back/front focus.

Mine is consistent, next time I think making a new thread would be better than ressing one that is over a year old =)

localist wrote in post #11466883
Hi guys. How is the AF consistency on your copies of this lens? If you take a few shots of the same subject with camera on tripod and re-focus before each shot, does focus shift around? Assuming lens has no back/front focus.

the copy i got was the most unreliable thing I've ever tried. even worse than the sigma 30mm i had before.. it improved somewhat after finding the right amount of microfocusadjustment (+8) but it was still nowhere near being reliable enough.. focusing on a book that covered the entire fov and was perfectly parallell to the sensor, gave me a keeper-rate of less than 50%.. so I sold it -only had it for 6 days. Picked up the Canon 50/1.4 yesterday instead and the AF performs just as one would expect (what a relief..!)

Joaaso I think that's exactly what I'm facing with my copy right now

localist wrote in post #11467604
Joaaso I think that's exactly what I'm facing with my copy right now

I feel for you:-/ I have two friends who was in the same situation as well and both switched to the Canon now this week..

Cleaned the mirror area on my 5d2 with a blower, and AF inconsistencies disappeared.

Deciding between this or the canon 1.4 I'm on a 6d and currently am using a canon 1.8 for portraits

ITS ME DAVID wrote in post #17340919
Deciding between this or the canon 1.4 I'm on a 6d and currently am using a canon 1.8 for portraits

it makes more sense to start a new thread than to reply to one that is 6 years old...do a search, and you'll see many comparisons between the two f1.4's