Something new for adding filters to the Nikon 14-24

[Bob Gundu]

http://www.focusoptics.com/newruby.html

What does Ruby modified 14-24 mean?

[Arturo Sánchez]

Thabks,
Have you got the mattebox already?

[Bill Sepaniak]

Yes. However, I don't think that the Nikon 14-24 is a good candidate for the clip-on features on the Vocas mattebox. The lenshood appears to be made from either a plastic or composite material. I am afraid that if the mattebox was tightly clamped on the lens hood it might break or crack. It might work with rods and nun's knickers. I will play around with it tomorrow and hold the mattebox with the lens stuck through the 105mm opening to see (in a very crude and unscientific way) if there is any vignetting.

[Arturo Sánchez]

Yes. However, I don't think that the Nikon 14-24 is a good candidate for the clip-on features on the Vocas mattebox. The lenshood appears to be made from either a plastic or composite material. I am afraid that if the mattebox was tightly clamped on the lens hood it might break or crack. It might work with rods and nun's knickers. I will play around with it tomorrow and hold the mattebox with the lens stuck through the 105mm opening to see (in a very crude and unscientific way) if there is any vignetting.

Good luck! It would be great to watch some pictures about the setup...

[Bill Sepaniak]

Here are the results of the quick and dirty test of the 14-24 on the Vocas 325. Since I am waiting for the delivery of my Scarlet, I tested the 14-24 on a full frame Nikon D700. As I mentioned, I was not inclined to clip the mattebox on the lenshood for fear of damaging the hood. Instead, I removed the step-down ring from the mattebox and inserted the 14-24 into the 105mm rear opening of mattebox. However, I first put several wide produce rubber bands around the lenshood to act as a poor man's donut/gasket. With that done, the lens would fit into the rear opening without much of a gap. But, I still had to hold the mattebox with one hand in an effort to keep it centered and on axis. (Admittedly, very crude, and please keep that in mind when considering the results below.)

With both filter frames attached, and lens pushed up to the second filter frame housing, here are my observations:

14mm: Slight to moderate vignetting at lower left and right corners
15mm: Slight vignetting at lower left and right corners
16mm: Vignetting still visible but starting to diminish
17mm: Vignetting almost gone
18MM: Vignetting gone

I then removed the second filter frame, which allowed the mattebox to slide slightly closer to the lens. Here are my observations with one filter frame:

14MM: Very slight vignetting at lower left and right corners
15mm: Vignetting almost gone
16mm: Vignetting gone

I would be very reluctant to use any sort of clip-on mattebox with the 14-24. Using 15mm rods and nun knickers-w-the Vocas should result in a usable focal length of 16-24, provided only 1 filter is used. If additional filters are used, I would expect the usable focal length to begin around 18mm.

Then, just for fun, I did mount the Vocas on a CY Zeiss 21/2.8, and it clamped perfectly tight using an 82mm step-up ring on the lens. The lens and mattebox (with both filter holders) were then mounted to a Canon 5DII, another full frame sensor camera. No vignetting whatsoever. The set-up was extremely light and could be used handheld all day in my opinion.

As with most things in life, YMMV, and nothing definitively will be known with the 14-24 until the mattebox is actually used on a properly configured Scarlet (or Epic).

____________________________________
SO # 6931 “Betty Page” Canon AL Package
“… preparing to ‘whip’ the competition …”

Zeiss Lenses:

CY 21/2.8
ZF 28/2.0
CY 35-70/3.4
CY 50/1.4
ZF100/2.0

Nikon Lenses:
G 14-24/2.8
G 24-70/2.8
D 80-200/2.8

Tokina Lenses:

11-16/2.8

[Arturo Sánchez]

I think that this new Mattebox from Manfrotto could fit the 14-24:

http://www.manfrotto.us/product/MVA512W

What do you think?