35mm vs 50mm

runninmann wrote in post #2048945
Or maybe the Sigma 30-f/1.4?

Ditto

The problem with the Sigma (if you want to call it that) is that it's an EF-S mount lens. It won't work on old-school Canon DSLRs (like my D30) or on pro bodies in the 1Dxx series.

Unless you see yourself ever getting a body that wasn't EF-S compatible, it's no biggie.

A little wider still but on a 1.6 crop nearly a "normal" lens...the EF 28/1.8 USM. Oft overlooked but a very nice piece of glass on a par with the 50/1.4.

LightRules wrote in post #2049442
The Sigma 30 f1.4 EX DC HSM is worth a deep look. Assuming a properly focusing copy, you won't look back on a 1.6x body.

Is this focusing issue wide spread or just on a few on them?

Double Negative wrote in post #2049896
The problem with the Sigma (if you want to call it that) is that it's an EF-S mount lens. It won't work on old-school Canon DSLRs (like my D30) or on pro bodies in the 1Dxx series.

Unless you see yourself ever getting a body that wasn't EF-S compatible, it's no biggie.

The Sigma 30EX is not an EF-S lens; it's a DC lens. It will mount and work on your D30. In fact, it will mount on any Canon body, but on FF or 1.3x it will vignette. It's unreal that you can get an f1.4 lens with this level of optics with ring HSM/FTM in a compact body for $375 USD. Yeah, I'm a fan.

LightRules wrote in post #2051102
The Sigma 30EX is not an EF-S lens; it's a DC lens. It will mount and work on your D30. In fact, it will mount on any Canon body, but on FF or 1.3x it will vignette. It's unreal that you can get an f1.4 lens with this level of optics with ring HSM/FTM in a compact body for $375 USD. Yeah, I'm a fan.

It's still essentially an EF-S. Whether it mounts or not, it's pointless to have a prime that vignettets.

cdi-ink.com wrote in post #2051356
It's still essentially an EF-S. Whether it mounts or not, it's pointless to have a prime that vignettets.

Exactly...

I have both and if I were on a budget and only had the 50, I would be happy with it. I love my 35, but it's not worth busting the bank to get it.

I find the 50 f/1.4 too tight on my 5D! Lovely IQ on the 50mm lens but for me I will get the 35 f/1.4 soon...it's a real beauty! Good Luck.

cdi-ink.com wrote in post #2051356
It's still essentially an EF-S. Whether it mounts or not, it's pointless to have a prime that vignettets.

False. It's not EF-S, it's DC. Take a Sigma 30EX and mount it to a 10D. Take a Canon 60 Macro EFS and mount it to a 10D. One will work perfectly, one won't at all.

LightRules wrote in post #2051911
False. It's not EF-S, it's DC. Take a Sigma 30EX and mount it to a 10D. Take a Canon 60 Macro EFS and mount it to a 10D. One will work perfectly, one won't at all.

I'm not talking about the functionality of the lens. I'm talking about the vignetting. On a 10D/D30 yeah you'd be ok...but to say it's fine on a full frame too is absolutely wrong. Heavy vignetting makes it pointless to have if you're shooting FF.

DC is Sigma's EF-S. It just happens to not have the protruding mount and works on pre-300Ds. It's still a small image circle.

cdi-ink.com wrote in post #2051950
I'm not talking about the functionality of the lens. I'm talking about the vignetting. On a 10D/D30 yeah you'd be ok...but to say it's fine on a full frame too is absolutely wrong. Heavy vignetting makes it pointless to have if you're shooting FF.

DC is Sigma's EF-S. It just happens to not have the protruding mount and works on pre-300Ds. It's still a small image circle.

Double Negative stated "The problem with the Sigma (if you want to call it that) is that it's an EF-S mount lens. It won't work on old-school Canon DSLRs (like my D30) or on pro bodies in the 1Dxx series."

My response was clear: The Sigma 30 will "work" just fine on his "old school" D30. I also stated clearly that the lens will mount on FF or 1.3x bodies but that it will vignette. I never said it wouldn't vignette on these bodies. I never said "it's fine" on FF bodies; hence, I'm not "absolutely wrong." This is a straw-man.

DC is not Sigma's EF-S; that is to say, they are similar but not identical. The fact that no EFS lens (without modification) will work on a 10D and all Sigma DC lenses will work on a 10D (or D30) shows them to not be "essentially the same"; there is no 1-to-1 correspondence of identity.

LightRules wrote in post #2051968
Double Negative stated "The problem with the Sigma (if you want to call it that) is that it's an EF-S mount lens. It won't work on old-school Canon DSLRs (like my D30) or on pro bodies in the 1Dxx series."

My response was clear: The Sigma 30 will "work" just fine on his "old school" D30. I also stated clearly that the lens will mount on FF or 1.3x bodies but that it will vignette. I never said it wouldn't vignette on these bodies. I never said "it's fine" on FF bodies; hence, I'm not "absolutely wrong." This is a straw-man.

DC is not Sigma's EF-S; that is to say, they are similar but not identical. The fact that no EFS lens (without modification) will work on a 10D and all Sigma DC lenses will work on a 10D (or D30) shows them to not be "essentially the same"; there is no 1-to-1 correspondence of identity.

You're arguing straw-man as well, if you accuse me of doing so. I also said it's "essentially EF-S"....

cdi-ink.com wrote in post #2051976
You're arguing straw-man as well, if you accuse me of doing so. I also said it's "essentially EF-S"....

I'll end my comments here, just so we're not "straw-manning" each other: DC will work on more bodies than EFS, so they are not essentially the same. 10D and D30 and D60 owners would not consider EFS and DC "essentially" the same.

LightRules wrote in post #2051989
I'll end my comments here, just so we're not "straw-manning" each other: DC will work on more bodies than EFS, so they are not essentially the same. 10D and D30 and D60 owners would not consider EFS and DC "essentially" the same.

Limited to crop bodies = EF-S/DC/DX.


'nuff said.