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  • 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 :)

PL Mount 11-16mm f2.8 Prototype, Manual Iris

This just means I will have to pester Duclos even more than I already am to get one. He's going to have to shut down his twitter feed if I bug him one more time.
 
Mike Prevette said:
This just means I will have to pester Duclos even more than I already am to get one. He's going to have to shut down his twitter feed if I bug him one more time.
Click to expand...

Mike, you will certainly be in the first batch ! And that should be quite soon.

Matt Uhry
www.mattuhry.com
 
Sorry if it has been asked before...

Does this lens cover 5K on the upcoming EPIC?


Thanks!
 
Thank you for the quick response!

And this is definitely an amazing job Matthew! Great lens, great customization!

I have the Kinoptik Tegea 9.8mm T2.3 that also covers 4K fine. I am looking for a similar wide lens that would cover 5K (or even 6K), when I upgrade to EPIC.

Any ideas? Could be a still lens as well, that I'd send over to you for a similar customization.

Thank you.
 
Matthew Duclos said:
Nope.
This lens is a DX format lens and works perfect for 4K.
Although, if you really wanna push it... I believe it covers FF35 at 16mm.
But it is meant for 4K
Click to expand...

Or at 5k we might be able to get a little wider and use it along-side the 18mm and longer RPPs.

At 13mm the Tokina's little distortion goes away completely, as far as I remember. So I think it might be really sweet if we can at go to 14mm at 5k!

That could make the 14mm RPP a tough sell for those without tons of money, or at least make Red try a little bit harder to make their 14mm T1.8 and keep the cost as low as possible.
 
Coverage for FF format is possible from 14mm onwards - it depends on your aspect ratio and how much look-around Red decides to implement. Check out Ken Rockwell's review of the lens. Coverage chart is half-way down:

http://www.kenrockwell.com/tokina/11-16mm.htm

Here's 14mm - probably will work fine for most normal aspect ratios. 36x24mm "FF35" being 1.5:1 and not really used for motion work.

14-D3R_4304.jpg


5k (15x30mm) probably from 12.5 onwards - again depending on look-around and if you are shooting 1.78 or 2:1

Matt Uhry
www.mattuhry.com
 
Looking at the gray on gray worried me a bit. Should I not worry so much about this amount of vignetting?

From what I gather it seems even MPs vignette, RPPs are also expected to do so, but I guess it is all about acceptable levels and what that means for you instead of good and bad lenses.

I threw Ken's 13mm f2.8 gray chart cropped to 2.4:1 on top of a gray background equal to the center of the image. I am not sure, nor does anyone I guess, about what the crop factor will be for 5k on Mostro. I'd love to check it out, even as an approximation. I believe 5k Mostro 2.4:1 is what Jim said RPPs will cover if I remember correctly.

It obviously seems that 13mm f2.8 would be very acceptable once cropped to 5k and then again for 2.4:1.

Still, I'd love to see an approximation with the chart if someone would give me an idea of what the crop factor could be.

One small thing I noticed that worried me a little bit is that the vignette seems more pronounced on the left side, which I guess would hint at uneven illumination during testing?
 
any updates you opitcal oligarchs care to share with the masses?

no pressure, just curious.
 
That vignetting is pretty minor. You would almost never see it.
 
We are just looking for a steady supply from Tokina before we start pumping these little guys out.
Once we secure a supply, I'll release a nice newsletter and maybe post something here on REDuser with all the final details.
Feel free to ask questions about the lens here. Im sure I can answer your questions.
 
Matthew, a pleasure to meet you. I'm very interested in this lens, would be a fun addition to the RPP set, even after the 18mm ships. Has final price been determined?
 
I'm thinking the same thing you are Shawn. This is going to be a great addition to the RPP's. Hopefully Dr. Lens can secure a number of these lenses soon... Last word on price was "under $3K". I'm very interested to know, too.
 
Jeff Kilgroe said:
I'm thinking the same thing you are Shawn. This is going to be a great addition to the RPP's. Hopefully Dr. Lens can secure a number of these lenses soon... Last word on price was "under $3K". I'm very interested to know, too.
Click to expand...

And whether that's the patened Red "under $3k" which means $2995 or actually under $3k :-D. If it was $2k, I'd probably buy it immediately. $3k and I'd probably need to wait a bit as getting the 18mm RPP has priority and that's due in just a few months. Sheesh, too much good product hitting all at once...
 
Do you guys know the image circle on the retrofited lens?
 
The image circle changes throughout the zoom range.
It's originally a DX format lens which covers the RED One sensor just fine.
Here's a quick little (childish) illustration.
(before I get slammed for crappy images, these were taken with my phone...
the distortion is not from the Tokina, it's from my phone taking pictures at an angle... Back to business.)

This image shows the lens set at 11mm. I marked where 5K coverage is.
The image just barely covers to 5K and we are looking into cutting back some more of the front housing to see if that's the wide angle coverage limitation.
3482674427_60d2810c18.jpg


Next is the lens set at 16mm. As you can see, it covers well beyond 5K almost covering the 43.27mm FF35 frame.
3482674863_313db6b9b9.jpg


So now you've seen its full coverage. And even with the very minor vignette at 11mm, it covers 5K entirely at 12mm and beyond.
 
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