Tiffen 4 x 5.65" IRND 0.9 Digital Diffusion/FX 3 Filter Schneider 68-999103 If the stand sections are

If the stand sections are not sufficiently tightened

which prevents pressure buildup of gasses and vapors inside the case

95 lb Box Dimensions (LxWxH) 34

Secure it in place with the hot shoe connector in its rigid front hood section to ensure that it won't slip down in front of the lens and obscure your shot

Tiffen 4 x 5.65" IRND 0.9 Digital Diffusion/FX 3 Filter Schneider 68-999103 If the stand sections areIRND and Diffusion Combination Filter 3 Stop Neutral Density Filter Attenuates Infrared Wavelengths Greater Control Over Exposures No. 3 Density Digital Diffusion Softens Skin Details Smoothes Textured Backgrounds Ideal for High Definition Video Capture Water White Glass Construction Combining three distinct effects within a single filter, the 4 x 5. 65" IRND 0. 9 Digital Diffusion FX 3 Filter from Tiffen offers a 3 stop exposure reduction, attenuates