This 6.6-stop, 27mm Heliopan 27mm ND Filter 6.6-Stopprovides a 6.6-stop exposure reduction. Its 2.0 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed without overexposing your image. By slowing your exposure time, you can create motion blur for special effects or to convey a sense of movement. Opening your iris allows you to create shallow depth of field, which can help isolate your subject. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

To prevent internal ghosting and reflections, each glass surface includes four layers of anti-reflection coating. Together, these eight coatings offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters. This Heliopan neutral density filter is constructed from Schott glass for increased optical clarity as well as color fidelity and features a brass filter ring for enhanced durability and jamming prevention.

2.0 Optical Density    Multicoated Schott Glass    Brass Ring    27mm Front Filter Threads    Knurled Sides    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture

2.0 neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 6.6-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Filter does not affect coloration of the image and is ideal for use with other filters.

Each glass surface includes four layers of anti-reflection coating to prevent internal ghosting and reflections.

Constructed from SCHOTT glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Side knurlings to provide a more textured grip when mounting or removing it from a lens.

27mm front filter threads allow for use with other filters.

Related Questions and Answers

Q: 1. 145mm Neutral Density 32 Filter for WonderPana 145/66 Systems by FotodioX Can these filters be stacked ?

A: Yes, the filters have the same 145mm threading on each side and can be stacked.

Q: 2. Will this work in the Kase k9 100x100mm filter holder ?

A: The K&F Concept 100 x 100mm ND8 Filter (3-Stop) is compatible with the Kase K9 Filter Holder.

Q: 3. I already bought 3 stop filter of this. Can you help me where I can get 6 stop filter?

A: Here is the link for a high quality 77mm 6 stop filter by Hoya. https://www.bhphotovideo.com/c/product/1012350-REG/hoya_xpd_77nd64_77mm_pro_nd_64x.html

Q: 4. If I put a Moment 72mm VND filter(2 to 5-Stop) on a Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS lens, will the vignetting appear at 16mm?

A: Yes vignetting is likely to appear since Moment 72mm Variable Neutral Density 0.6 to 1.5 Filter is thick and that lens is very wide and if you are using that lens on a full frame camera.

Q: 5. Can you layer this filter with other filters?

A: Yes, but note that this filter has 52mm threads in the rear where it attaches to the lens and 55mm on the front to accept additional filters or a lens cap.

Q: 6. fits in Mini Matte Box Small Rig 4x4 ?

A: Yes, the system will adapt to all 4x4 filters that are up to 4 mm thick.

Q: 7. is there a filter that cuts reflection of car interior, w camera mounted to window on the inside, shooting out the car window?

A: Best for reflections is using a polarizing filter not an ND. This is some options, https://bhpho.to/46vbdOC.

Q: 8. Is this filter stackable? And what does the 106M mean in the name?

A: Yes I have stacked them with no visible lose to optical quality.

Q: 9. Will this filter fit the drop in Ai-s 39mm holder for Nikon?

A: This would fit in the Drop-in AIS holder for Nikon.

Q: 10. Can I stack another 58mm filter on top of this one?

A: The Bower 58mm Variable Neutral Density Filter has a 62mm front threading. If you want to stack another filter in the front it would need to be a 62mm filter. Alternatively you can put the other 58mm filter in bottom and this one on top. Always be careful to avoid vignetting when stacking filters.