Welcome to our community

Be a part of something great, join today!

  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

First impressions: Sigma/Nikon 30mm f1.4

Stephen Pruitt

Well-known member
Joined
Sep 14, 2007
Messages
3,305
Reaction score
40
Points
48
Website
www.thetreemotionpicture.com
Since no one here on REDUser cared to answer my post for data on this lens, and since I'd read enough strong positives from still photographers, I just decided to buy it myself.

The verdict:

This is a winner of a lens! For less than $400, you get a lens that is really sharp and totally usable wide-open (at f1.4!) and gets even better stopped down.

I didn't want to spend $3500 for the legendary Nikon 28mm f1.4, and for good reason: It's $3500!

But this little Sigma lens, at less than $400 delivered to my door NEW from B&H, isn't just acceptable, it's really, really nice.

Don't ask for any screen shots. . . I'm lousy with that sort of thing. But let me say this, I HATE softness in my corners, and looking through the monitor, what this lens gives me wide-open is definitely going to fill an important void in my lens bag. . . a "normal lens" that is very fast and plenty sharp for my purposes.

Remember, though, this lens is a gelded-beauty, so you'll need to buy Doug Underdahl's upgraded Nikon mount to be able to use it (unless you want to tape the lens wide-open and control the exposure with NDs).

I definitely recommend this sweet little lens. It's not quite on the par of the amazing Tokina 11-16 (but what is?), but for fast and sharp, this lens delivers.

Now, if someone could point out a Nikon lens at say 18mm that is super fast, I'd be a very happy camper.

Stephen
 
You're right, Kyle. . . but it isn't a FF lens. . .

Stephen
 
Keep in mind that photozone tested on a Digital Rebel with (I forget) either a 3:2 or 4:3 sensor.

That means the extreme edge of the image circle would not be in RED's 16:9 sensor area, as the lens was designed for these taller sensors.

So the rough corner performance they saw would be much less of an issue.
 
According with dpreview website http://www.dpreview.com/reviews/specs/Canon/canon_eos400d.asp the 'Rebel's sensor is 22.2 x 14.8 mm (3.28 cm²).

The RED sensor is 24.4mm x 13.7mm (Super35mm).... a little bit more! Hmmm!

So it seems that the edge of frame performance is not quite there.

Never mind, that will save a lot of time in post when you want to add a vignette for 'that lovely' close up. :wink:
 
That's the full RED area, only a portion of that is used. By my reckoning, about 22.1mm x 12.4mm would be closer to the mark for RED 16:9.

But still, the difference is a little smaller than I thought. Depending on your definition of zone C, the corners could be excluded by 2:1.

I did a drawing illustrating the differences:

3045_1229853587.jpg
 
There is no vignetting at 4K 2:1 on my camera. It looks terrific!

Stephen
 
Back
Top