Sigma 50-100 Cine Lens

[Prahlad Strickland]

I just grabbed the 18-35 and 50-100 cine lenses to test. The 18-35 is great, the 50-100 breathing is pretty bad. I vaguely remember there was a firmware that helped, but is this only on the non cine version?

Surprised they released the 50-100 like that.

 

[Bob Gundu]

No such firmware can fix that.

 

[Daniel Stilling]

I must be the only DP on this planet that doesn't mind breathing.
I welcome a visual cue to my brain, that the focal plane is changing. I have stared before at a shot, just to realized that what I was looking at became out of focus. After wondering why that was, I figured out it was a focus rack, but by then the shot had been cut and I missed what the focus racked to.
In this example I got so concentrated looking at the details that I would have welcomed a cue that something in the shot is changing.
Besides, even if you hate breathing, how often do you do focus racks that would be touched by this issue (or feature, if you're out of your mind like me). There are so many considerations to a lens' quality, that in my book, breathing is way down there at the end of the list. But I see that for some people is way up high and most of the time a deal breaker and I don't get that...

 

[Josh Becker]

I must be the only DP on this planet that doesn't mind breathing.
I welcome a visual cue to my brain, that the focal plane is changing. I have stared before at a shot, just to realized that what I was looking at became out of focus. After wondering why that was, I figured out it was a focus rack, but by then the shot had been cut and I missed what the focus racked to.
In this example I got so concentrated looking at the details that I would have welcomed a cue that something in the shot is changing.
Besides, even if you hate breathing, how often do you do focus racks that would be touched by this issue (or feature, if you're out of your mind like me). There are so many considerations to a lens' quality, that in my book, breathing is way down there at the end of the list. But I see that for some people is way up high and most of the time a deal breaker and I don't get that...

I think one of the bigger issues is that when you are at 50mm but focused to the macro end of the lens, the FOV is significantly more narrow than a 50mm should be. I did a rough test where I focused to infinity then zoomed until the FOV was similar... and that focal length was 73mm. So if you’re trying to set up a shot that is meant to have the FOV of a 50mm lens and you’re focusing macro, the 50-100 will look very different at “50mm” than another 50mm that doesn’t breathe like this. Just my two cents.

 

[Curtis boggs]

I must be the only DP on this planet that doesn't mind breathing.
I welcome a visual cue to my brain, that the focal plane is changing. I have stared before at a shot, just to realized that what I was looking at became out of focus. After wondering why that was, I figured out it was a focus rack, but by then the shot had been cut and I missed what the focus racked to.
In this example I got so concentrated looking at the details that I would have welcomed a cue that something in the shot is changing.
Besides, even if you hate breathing, how often do you do focus racks that would be touched by this issue (or feature, if you're out of your mind like me). There are so many considerations to a lens' quality, that in my book, breathing is way down there at the end of the list. But I see that for some people is way up high and most of the time a deal breaker and I don't get that...

I am so glad to see someone say this! I feel the same way.
I don't always want to see focus breathing but there are times when i don't mind it.

The Sigma is a great lens considering its optical performance and price point.
Not perfect for everything but not a $20k cine zoom either.

 

[Erich Roland]

I must be the only DP on this planet that doesn't mind breathing.
I welcome a visual cue to my brain, that the focal plane is changing. I have stared before at a shot, just to realized that what I was looking at became out of focus. After wondering why that was, I figured out it was a focus rack, but by then the shot had been cut and I missed what the focus racked to.
In this example I got so concentrated looking at the details that I would have welcomed a cue that something in the shot is changing.
Besides, even if you hate breathing, how often do you do focus racks that would be touched by this issue (or feature, if you're out of your mind like me). There are so many considerations to a lens' quality, that in my book, breathing is way down there at the end of the list. But I see that for some people is way up high and most of the time a deal breaker and I don't get that...

I agree most of the time. Lens breathing is over-rated as a problem to be solved or a lens that should be avoided. Most of the time nobody will ever notice or care, but sometimes a certain kind of shot would be better with less of this movement.