As you know most high end Cinema Prime lenses don't offer threads for screw on filters. Whether it be a BlackMagic Design Production 4K, URSA, URSA MINI, or even a RED, one thing about working with with cameras that lacks built in ND filters, is that you may have to work with drop in filters and heavy matteboxes. So we decided to come up with a cheap DIY 3D printed lens clamp of our own to hold filters in place.
The 114mm is a common size shared by Canon CN-E Cinema Lenses and even Zeiss CP.2 Cinema Lenses (and many others), so this little adapter will work on those lenses as well. The design can also be modified to clamp other filters to Ultra Wide or Fisheye lenses that can't accept front threaded filters. (I need to make one for my Rokinon Fisheye). If you're wondering how it actually clamps, there's a small 2" slit right that separates the clamp are from the filter holder. This allows the clamp to compress a few millimeters - enough to clamp very tightly.
Anyhow it's an idea I wanted to share as I'm sure there are many instances in which this lightweight filter clamp holder could be very advantageous. Here's some additional photos of our 3D Printed Filter Clamp Holder.
Checking out different websites for a Matte Box + French flags that can support filters, it's pretty hard to locate anything under $400 dollars. Especially for DIY guys making custom rigs, you might not be looking for something that requires a Rod Rig Mount. This one mounts using the Filter threads on your lenses. I've seen this Cokin Filter based Matte Box for DSLR's many many times, but didn't know if it was something to consider. It's nice that it's Cokin Filter Compatible saving you tons of dollars on those inexpensive filters. Checking out his eBay Feedback looks like he's selling quite a few each week. So i'm looking for some additional input from people who might have purchased this thing, is it good or not good? Or is this possibly one of those items like a Justin Bieber CD that shows it sold millions but nobody wants to admit they own it...... Anyone?
For Photography you get much more dynamic range to edit the image into different exposures and even tweak some colors. With video, you have only so much dynamic range before the video footage starts to lose important quality. So with video, it's best to get the correct color and exposure right from the start.
Cokin Filters are very flexible for the photographer or videographer on a budget. You get the right filter adapter, and you'll be able to mount the filter holder on all of your lenses. This saves you big bucks from buying a seperate expensive filter for every filter size you might own. Of course these are based on resin (plastic) materials, so they maintaining sharpness won't be like what can be achieved from the $400 dollar glass filters. I'm not a fan of color changing filters, but I do own several Cokin ND Gradual Filters to help balance the bright sun with a darker beach during a sunset. These ND filters are also 'stackable' so that you can multiply how dark you want your exposure.
If you're looking to get some Depth Of Field outdoors on a bright sunny day, you might find that your DSLR shutter speeds are going to be crazy fast. So what are professionals doing? Well you basically have to cut that light from coming into the camera. Get yourself some ND filters or Neutral Density filters, and you'll be able to get more Depth Of Field in your aperture settings. One of the best solutions is the Fader ND, which is like having 8 different filters all in one. Check out the video above, and then get the product from the link below.
The Fader ND was used in this video to get that F/1.4 aperture on a bright sunny day.