This 5-stop, 28mm Heliopan ND Filter provides a 5-stop exposure reduction. Its 1.5 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.

1.5 Optical Density    Multicoated    Schott Glass    28mm Front Filter Threads    Brass Ring    Knurled Sides    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture

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

Providing a 5-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.

28mm front filter threads allow for use with other filters.

Related Questions and Answers

Q: 1. How is the corner sharpness on this lens? And the ultrawide 21mm converter? I've seen mixed reviews.

A: I have been surprised by the quality on this lens - I may have a good copy, but corners have been fine for me. Distortion has been easy to fix (no profile in Adobe raw that I have seen). Build quality and overall rendering are a touch behind the zeiss branded 35 and 55. I have not tried to converter.

Q: 2. Does this focus to infinity?

A: yes it sure does! It's a very sharp lens and does focus fast and accurately from about 11.5 inches to infinity. This lens outperforms a lot of others - one of the sharpest sony makes and it's also one of the lowest priced. Can't recommend it enough. I pair it with the ultra wide 21mm adapter and get twice the use out of it. And I'm incredibly picky and a pixel nerd because I'm a retoucher and photographer by trade - so I don't say these things lightly. :)

Q: 3. Does the lens come with a lens shade?

A: Noo mine didnt

Q: 4. This is a good lens for the sony at 6500 would use it in video, have active all the functions of autofocus and stabilizer ???

A: Pienso que si debe funcionar el autofocus, yo le utilizo con la a7SII y va muy bien

Q: 5. On a Sony a6000 series camera how does the image quality of this lens compare to that of the Sony Zeiss 24mm f/1.8 lens?

A: Both lenses will give you excellent image quality. It really depends if you could use the half stop more of light the 1.8 gives you over 2.0 and if you prefer a little bit of a wider shot. If you said yes to both of these, then the Zeiss will be your better option.

Q: 6. Would this work on a Sony NEX 3N? Also, how does it compare to the SEL35F18?

A: Just to correct: better check what camera you have. The Nex 3 3c etc. are APS C cameras, not four thirds; there was a 5n which is a 16megapixel aps c camera. The lens will fit all of these cameras, but the APS C camera sensors are only half the size of the image the lens is designed to produce so a lot of the image is wasted. The Sony Zeiss 24mm f1.8 is a wonderful little lens, designed for the APS- Emounts. I have it and love it. But remember as you figure the field of view, that an APS C camera gets coverage out of a lens comparable to a full frame camera with a focal length of 1.5 more. i.e. a 24 mm aps c lens has the same field of view as a 36 mm full frame.

Q: 7. Thinking of putting this lens on my A7ii for use on a gimbal. Question 1: with the lens wide open, is the auto focus smooth and accurate enough to get good results following a moving person? Question 2: Will a variable ND filter fit on the lens along with the lens hood? Thanks very much.

A: Hi James, yes. The autofocus is smooth and accurate with the lens/aperture is wide open. -Anthony

Q: 8. But, if I have Sony A7S2, can I zoom?

A: With any prime lense you cannot zoom, but the quality is that much better.

Q: 9. Hi, Does these Lens zoom?Thanks.

A: Nope, it's a prime lense. However, mounted on the Sony A7S II you can zoom electronically or use the Clear Image Zoom feature if shooting movies.

Q: 10. Is the focusing/aperture action on the FE 28/2 louder than other FE lenses? Or is this unique to the used copy I just purchased? Focusing at f2.0, my copy is surprisingly loud with a bit of vibration/roughness. Its similar to screw drive lenses. Considerably less stealth than any of the other FE lenses I've used (55/1.8, 90/2.8, 28-70 kit). I'm considering returning it, but wonder if another (new) copy would be similar. Others have a similar impression? Any thoughts appreciated.

A: I just tested mine and it is nearly silent - certainly no louder than my 35 or 55, in fact a touch quieter than the 35, but all are very quiet.