Hi Srank!
As a cinematography student at SRFTI, you know that your biggest enemies in Kolkata in June will be the high sun angle and those harsh, specular shadows. Creating a consistent overcast look under the Indian summer sun is a massive logistical undertaking, but definitely doable with the right grip and filtration.
Large Scale Diffusion & Negative Fill
You’ll need heavy overheads at least a 12x12 or 20x20 frame. Instead of standard silk, I’d highly recommend TRP Worldwide or Chimera Full Grid Cloth. It’s much more effective at killing the "hot spot" of the sun. If you want a more organic feel, Bleached Muslin is fantastic for its natural wrap, though it eats up a lot of stops. Also, don't forget Negative Fill (large black floppies); overcast light can be "flat," so you need to bring back some shape to the talent's face.
In-Camera & Filtration
Circular Polarizer (CPL): A must to kill the specularity on foliage and skin shiny leaves always scream "summer sun."
IRND Filters: Use high-quality NDs like Tiffen IRND or NiSi Nano. In the harsh Indian sun, standard NDs often suffer from IR pollution, which will turn your shadows muddy or reddish.
Optical Softening: A subtle Tiffen Black Pro-Mist (1/8 or 1/4) can help bloom the highlights slightly and take that digital edge off, better mimicking a hazy atmosphere.
Post-Production
Shoot in Log and slightly cool down your White Balance in-camera. In the grade, look into reducing micro-contrast and lowering the highlights to flatten the curve without losing the "soul" of the image.
One major challenge to consider:
Kolkata's weather in June is notoriously unpredictable. The light can shift from a torrential downpour to blinding sunlight in a matter of minutes, which is a nightmare for continuity when you are trying to maintain a "cloudy" look.
My question to you: Do you have a strategy for maintaining lighting consistency if a sudden monsoon squall hits mid-scene, followed by harsh sun ten minutes later? Are you planning to have some interior "cover sets" ready for those moments?
