Amazing new redrock product!!!!!
- Thread starter Skywalker688
- Start date
I appreciate that! I'll also repeat my standing offer: if anyone even remotely near Chicago has an FD-mounted 35mm adapter that they think doesn't vignette, and it's one I haven't tried before, let's get together with your adapter and my super-wide lenses and put it through its paces. For established adapter companies who have a new design they think won't vignette, I will gladly lend you any lens you want to test out, by mailing it to you. I am determined to do what it takes to find an adapter I can use... and I'm equally determined not to take it on faith this time that the problems can be sorted out through application of enough tweaking. I want to see it before I buy something.
Like I said, I'm weird that way. Vignetting is a huge pet peeve for me. But even if you like it, you'd want to add it in post like Top Gear (who use it to highlight stuff wherever it is in the frame), rather than having it be dead centered in every frame you shoot, I'd think.
Duncan
Joseph Stunzi
Veteran
Too bad the design is not ten years old.
aurantaurant
Well-known member
If I was hired to sit out in the woods and get footage of animals then I'd probably not want the vignetting, but I like it for my stuff. It makes it feel more cinematic.
Duncan I'd love to see a documentary on your quest for zero vignetting.
Duncan I'd love to see a documentary on your quest for zero vignetting.
Duncan,
- you can remove a good portion of vignettes in post if not everything down to the tollerance of below 1% inaccuracy.
I wrote a small entrance to it here ( not done as i still havent added the control layer for contrast/exposure.
You can remove vignettes easily like this and the good part is you grab the data from the vignette and dont have to eyeball.
http://www.droschler.dk/Tut-Vignette_removal.html
as said stillwriting on it, but it should give you a hint doing it the proper way via Legacy.
If your argument is that an adaptor has to be flawless and give a nice uniform image no matter lens, then wait till someone builds one or make one yourself.
In the meantime you can use post tricks to get your footage going!
- you can remove a good portion of vignettes in post if not everything down to the tollerance of below 1% inaccuracy.
I wrote a small entrance to it here ( not done as i still havent added the control layer for contrast/exposure.
You can remove vignettes easily like this and the good part is you grab the data from the vignette and dont have to eyeball.
http://www.droschler.dk/Tut-Vignette_removal.html
as said stillwriting on it, but it should give you a hint doing it the proper way via Legacy.
If your argument is that an adaptor has to be flawless and give a nice uniform image no matter lens, then wait till someone builds one or make one yourself.
In the meantime you can use post tricks to get your footage going!
Last edited:
Really? The last time cinema cameras and lenses had vignetting was back before movies had sound! Canon spent a whole bunch of time and money to make these lenses produce a flawless image, it just kills me to do any less with them. But again, I realize I'm weird that way.
Duncan
aurantaurant
Well-known member
I like my footage how I like my women. Real dirty.
Skywalker688
Active member
Well, I suppose the point is to create something that will make Duncan happy. Anybody can add vignetting to something, but it would be nice to start without it in your image! Hopefully the blade does that, and I will test the redrock for you when it comes out.
Usually when I get vignetting with my 28mm, I slap on a 35mm and back up 5 feet.
Usually when I get vignetting with my 28mm, I slap on a 35mm and back up 5 feet.
Joseph Stunzi
Veteran
I'll be testing 7 adapters at the end of January. Including the blade, g35, ultimate, M2, and maybe a few new things that you don't know about yet!
Yes, I believe that should be the goal of all these adapter manufacturers: create something that makes Duncan happy! I will also be accepting bids as to who will pay me the most to use one of their products
But you have it exactly right: it's very easy to add effects such as vignetting in post, much better to start out with a clean image in the camera.
The "use a longer lens and back up" trick works when you're only down into the mild wide angles, and it's completely a field-of-view issue (assuming you have the room to back up!) But the rectlinear distortion of wide angles from about 24mm down has its own character that isn't just a matter of how much of the FOV is in the frame. And the full-frame fisheyes (15mm in Canon FD) just look like bad barrel distortion unless you truly get the image all the way to the edge.
Duncan
Here's a quick and imperfect example of where the ultra-wide lens gives a perspective that isn't doable by just backing up with a longer lens. It's a snippet of footage from some playing around I was doing when I did all those lens tests. As someone else pointed out, the 14mm Canon is inexplicably decent in terms of vignetting, despite being insanely wide and not having all that big a rear lens element... but it does have it still to a level that annoys me, as you can see (everything is brighter the more in the center it is.)
http://www.betlikeduncan.com/duncan/redrock/lenscharts/canon_fd/misc/doggiecam_14_28.mov
(Warning: that's 48MB!)
Duncan
http://www.betlikeduncan.com/duncan/redrock/lenscharts/canon_fd/misc/doggiecam_14_28.mov
(Warning: that's 48MB!)
Duncan
PaPa
Major Contributor
I had basically null vignetting with a 24mm lens on the blade beta. So rest assured, vignetting will be a thing of the past. Looking at a waveform, there was only slight dipping on the very edges of the wave. visually, you really cannot notice it. Even panning across a white surface or sky ( zoomed in to academy frame )
So yeah, no worries there. But ill stop here to avoid making this a blade thread
.Skywalker688
Active member
I agree that rectilinear distortion is unique at the wide ends, but I thought we were mainly dealing with the 28mm lens that had a problem? I wouldn't really say there's much of a different look from the 28 to the 35 when it comes to that.
Now if we were talking about an Arri 8R, that's a little different. By the way, if you ever get a chance, that's a hell of a lens!
Now if we were talking about an Arri 8R, that's a little different. By the way, if you ever get a chance, that's a hell of a lens!
LuckyStudio 13
The Tapeless One
Be funny to read this thread in two years, where there will be no spinning, vibrating, oscillating, radiating mechanism, no light loss, no flip, no magnification in field of view, no batteries, no motors, no belts, getting a SLR "full frame" image on the Red Scarlet FF35.
Well, the 24/2.8 is the one I've been talking about, and it's definitely the start of the distortion lenses as you go wider. You're right, the 28 and 35mm lenses may as well be a 50mm set farther back, and with a 50 you can get much bigger apertures.
Duncan
Luis Caffesse
Admin
Good point.