
Tiffen
Tiffen 37STR42 37mm Star 4 Point Filter
Transform any point of light into a dramatic four-pointed star with Tiffen's precision-crafted 37mm rotating star filter.
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Overview
Key Features
Limitless creative options.
Rotating mount allows exact positioning of light rays.
Can be used in combination with other filters for remarkably creative effects.
Precision metal mounting ring.
Specifications
Filter Diameter
37mm
Filter Type
Star effect
Star Points
4
Mount
Rotating precision metal ring
Brand
Tiffen
Model
37STR42
Frequently Asked Questions
How precisely can I control where the star rays fall in my composition?
Very precisely. The rotating metal mount lets you spin the filter to orient all four rays exactly where you want them — diagonal, horizontal/vertical, or anywhere between. That control is what separates a thoughtful star effect from a random one, and it's one of the 37STR42's most practical features on a real shoot.
Does this filter affect overall image sharpness or color across the frame?
Some slight softening can occur in areas outside the star effect, which is inherent to etched-grid star filters as a category. Tiffen's optical glass minimizes color cast, but if critical corner-to-corner sharpness is your priority for a given frame, plan to remove the filter when you're not using the effect.
Can I stack this filter with a UV or polarizer for outdoor shooting?
Yes, and Tiffen specifically notes it's designed for combination use. Stacking with a circular polarizer can add drama by controlling reflections while the star effect is active. Just be mindful that additional glass elements in the stack can introduce vignetting, especially at wider focal lengths.
What kinds of light sources trigger the star effect most effectively?
Point sources work best — streetlights, candles, bare bulbs, specular highlights off metallic surfaces, and sun flare. Soft, diffuse light sources won't produce a defined star pattern. The effect is most dramatic when the light source is small and bright relative to the background exposure.
Is this filter suitable for video shooting, not just stills?
Absolutely. The rotating mount makes it especially useful in video, where you can slowly rotate the filter during a shot to animate the star rays — a technique that works well for establishing shots or transitions in event and cinematic work.