Hello everyone,
Thank you so much for your participation,
Special thanks to Andy Lee and his overview of the Nikon lenses used on Bourne Ultimatum.
I did a research on both lenses:
Nikon 28-70mm f/2.8 AF-S ZOOM-NIKKOR (2007)
Nikon 80-200mm f/2.8 AF-D NIKKOR ED (2007)
(Both are great glass) and with your idea of using it with 77mm wide angle filter x0.45 was the one I found it makes it a very interesting crop factor
Originally GH4 in 4K mode gives x2.3 crop
With a focal reducer it will become x1.7 crop
And with the wide angle filter of x0.45 it is going to give a x1.25 crop (Now the crop factor is not the case)
The DOF on GH4 for a f/2.8 lens will be the equivalent to f/5.6 on a full frame sensor, the focal reducer gives us an extra 1 F stop, making the lens f/2.0 and the DOF equivalent on the full frame sensor of f/4.0 what is not so crazy cinematic but is something to play around with.
With the wide angel x0.45 filter and the focal reducer we will end up haven our two Nikon lenses covering:
not 28-200mm, but 35-250, making it a great option.
On ebay for both lenses I found Follow Focus gear rings that fit the lenses perfectly giving the option of using the FF strait on the lens.
The only other problem is to get a wide angle lens, that will have the 77mm filter thread and the nikon mount, hopefully something as well build as the lenses mentioned above.
The set of Six (6) Rokinon lenses that we budgeted for costs $2.9k
And the Two (2) Nikon Zoom Lenses (Used) are going to be around $2.2k with the wide angle filters and FF gear upgrades
Still giving an option to look for something affordable and we still can always add an extra, in our Rokinon set the only two lenses that we have not covered with the nikons are the 10mm and the 16mm, with the focal reducer it will be 17m and the 27mm.
For the choice of the GH4 as the camera body with the internal 4K and the new firmware update I think it stands out good for the first low budget feature film. And for the total Camera + Accessories + Cage being in the range of under $4k it is a great option to follow.
Any thoughts on the wide lens for this set up and the idea of the package for the first feature film?