50mm f/1.4 vs 50mm f/1.2L Is the cost worth it? | Bought the Sigma 50mm f/1.4

[JohnnyRebel]

I have both the 1.;4 and 1.2. The 1.2 is really somewhat of a special purpose lens - I use it frequently for very low light conditions. It is a very tricky lens to use because when wide open, the DOF is so shallow. (about .35-in) I would recommend sticking with the 1.8 and 1.4 for most users.

As for your question regarding "worth the cost," probably not unless the cost is relatively insignificant. It is a big, heavy, beautiful piece of glass. It also takes big 72mm filters.

+1

 

[Sp12]

yeah. apart from the 200/300/400/500/600/800 ... And the 50L isnt fully sealed is it, no more so than the 85L?

50L is weathersealed. 85L is not.

Only with a 1D* body though.

 

[corkyg]

FYI, here are the 1.4 and 1.2 lenses side by side . . .

 

[alfa147x]

I think im going to look for a used Sigma 1.4 and then compair it to Canon 50 1.4 at work. If I think the difference is worth it I'll keep the sigma. If not I'll sell / return it.

Thanks guys!

 

[alfa147x]

If a 50 f/1.2L focuses at .35 inches then what can a 50 f/1.0L do?

 

[RobDickinson]

If a 50 f/1.2L focuses at .35 inches then what can a 50 f/1.0L do?

lens speed (aperture) has no bearing on minimum focus distance.

The 50 f1.0L is a seriously specialised lens, expensive, very fast, and quite soft!

 

[corkyg]

If a 50 f/1.2L focuses at .35 inches then what can a 50 f/1.0L do?

The minimum focus distance for the f/1.2L is 45 cm or 18 inches. The discontinued f/1.0L minimum is 23cm or 9 inches.

This is the actual focusing window on the f/1.2L:

 

[alfa147x]

Oh I didn't mean focusing distance. CorkyG you said that the 1.2L at f/1.2 only .35 inches of the image is in focus. Taking that how much of the image is in focus at f/1.0 on a 50mm 1.0L?

 

[RobDickinson]

Oh I didn't mean focusing distance. CorkyG you said that the 1.2L at f/1.2 only .35 inches of the image is in focus. Taking that how much of the image is in focus at f/1.0 on a 50mm 1.0L?

How much of the image is in focus ( in the plane of focus) depends on the depth of field.

This varies due to changes in the focus distance and aperture.

have a play with this:
http://www.dofmaster.com/dofjs.html

The 50mmf1.2L on a 5D2 focused on someone 5m away (full body portrait ish) gives a DOF of 71cm.

F1.0 gives a DOF of 60cm in the same situation.

So not all that different.

 

[corkyg]

Like Rob said . . . DOF=Depth of Field.

 

[alfa147x]

I am about to order the Sigma 50mm f/1.4 I have shoot this weekend so I wanted to make sure I'm ready to go... Does anyone know if it comes with a lens hood?

 

[alfa147x]

Looks like it does

 

[RobDickinson]

Yes., Should come with a hood and a bag.

Make sure it focuses accurately before using in anger.

 

[RobDickinson]

Flair is nice too!

 

[alfa147x]

Flair is nice too!

wow! Which lens is that?

 

[RobDickinson]

Sigma 50! You have to judge the flare just right but its beautiful when you get it.

I found I need less obvious flare in the viewfinder, once its some/lots in the viewfinder its too much on the shot.

 

[alfa147x]

Sigma 50! You have to judge the flare just right but its beautiful when you get it.

I found I need less obvious flare in the viewfinder, once its some/lots in the viewfinder its too much on the shot.

Oh wow. That's going to be fun
I'm looking forward to this lens. It'll be my first non canon lens. I love that it comes with a 4 year warranty

 

[alfa147x]

f/1.4

f/1.8

f/2.2

f/2.8

those are a bit under exposed. So far I like the lens. I need to play around with the AF

With the 5DII I do a lot more MF so it may be a while till I notice anything

 

[AkumaX]

go sigmalux!

here's the form you'd use to send in the lens if it needs recalibrating

http://dealerserviceform.sigmaphoto.com/storefrontB2CWEB/repairOrder.do?action=prepare_form

(also, they recommend to send it to the NY location, rather than their 'partners'..)

edit: aaaaaaaaaandddd the address: http://www.sigmaphoto.com/service-support

 

[alfa147x]

go sigmalux!

here's the form you'd use to send in the lens if it needs recalibrating

http://dealerserviceform.sigmaphoto.com/storefrontB2CWEB/repairOrder.do?action=prepare_form

(also, they recommend to send it to the NY location, rather than their 'partners'..)

Thanks! That's going to save me some time

 

[RobDickinson]

Remember canon 'fudge' exposure for their own fast lenses , esoecially on FF bodies, best to dial in some + ec with the sigma.

 

[alfa147x]

Remember canon 'fudge' exposure for their own fast lenses , esoecially on FF bodies, best to dial in some + ec with the sigma.

Do you have any texts behind that? I would like to read

 

[RobDickinson]

http://www.luminous-landscape.com/essays/an_open_letter_to_the_major_camera_manufacturers.shtml

 

[alfa147x]

http://www.luminous-landscape.com/essays/an_open_letter_to_the_major_camera_manufacturers.shtml

thanks!

 

[RobDickinson]

Its not a big deal as such , and canon arnt the only one doing it either. But interesting to read.