The Heliopan 46mm Dark Yellow Filter #15is a basic contrast filter, primarily for use with black and white film, that very strongly darkens skies and blues, increases contrast, and is often used for outdoor photography to emphasize contrast and shadows. There is an approximate 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.

#15 Filter for Enhanced B&W Contrast    4x Filter Factor, +2 Stops    46mm Front Filter Threads    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Dark yellow contrast filter for black and white film strongly darkens skies and blue tones, cuts through haze, and increases overall contrast.

Commonly used for landscape photography to emphasize blue skies and give clouds more visual depth. Also used for aerial and micro photography applications where added contrast can be used to enhance detail.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.

Constructed from Schott glass for optical clarity.

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

Dual threading with 46mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. Will this fit on my spark 2.0 sweet 50?

A: Being that the Spark 2.0 with the Sweet 50 Optic has a front diameter of 46mm, this Macro Filter Kit is compatible.

Q: 2. Does this filter have a slim mount?

A: This filter does not come in a slim mount version, but it is available in an SH-PMC coated version.

Q: 3. Is this comptabile with canon ef to R mount lens adapter with slot for filters?

A: Yes, the Kolari Vision R Dark VND Filter (6-15 Stops) as well as other drop-in filters are compatible with the Canon EF to RF drop-in adapter.

Q: 4. What’s the difference between these and the extension kit at the same price?

A: The extension tube attaches between the camera and the lens and it has no optics , this will attach the same way as a filter and it has optics

Q: 5. Does this filter cause any color shifts?

A: According to the manufacturer, the Kolari Vision R Dark VND Filter (6-15 Stops) may cause color shifting and ineffective light stoppage when combining with infrared photography. Otherwise, the filter should not cause color shift.

Q: 6. Does this Heliopan #15 Dark Yellow filter “digital” version work equally well for film analog ?

A: The Heliopan 67mm #15 Dark Yellow Filter is suitable for use on film and digital cameras.

Q: 7. will these fit my lensbaby sweet50 for Olympus 4/3 OMD1 MarkII?

A: Hi Joan, Yes, the 46mm thread mount filters will fit all of the newer Lensbaby Optics (Sweet 35, Sweet 50, Sweet 80, Edge 50, and Edge 80). - Lensbaby

Q: 8. Does this work with Canon EF to R lens adapter with drop in filter slot?

A: The Kolari Vision R Dark VND Filter (6-15 Stops) is compatible with the Canon Drop-In Filter Mount Adapter EF-EOS R.

Q: 9. What is the difference between these and the extension kit that’s the same price?

A: Close up filters are easy to use, with no loss of light, but lose image quality, do not work well on wide angle lenses and you cannot focus at infinity. Extension tubes work well on wide to normal lenses and there is no lost in image quality. However, they do not work well on telephotos, you lose infinity, you lose light the longer they are, exposure can be trial and error, the build quality of the connection and any electronics can have an effect on usefulness.

Q: 10. Hi. Can this filter be used in combination with IR sensitive film (like Rollei Infrared or Ilford sfx)? I see that some filters are described as particularly useful for infrared photography, but not this one. It seems to be the only 30.5 mm dark red filter in stock though, so thought I might as well ask. Thanks in advance!

A: Infrared film, if shot without filters, looks like normal black & white film. That is because regular light overpowers the IR. So you need filters that are IR friendly. In this instance, you could use this Heliopan 30.5mm #29 Dark Red Filter with Ilford. According to Ilford, When used with a deep red filter, SFX 200 renders blue skies almost black and green vegetation almost white to create a stunning infra-red look to your shots. However, according to Rollei: Please Note: To achieve strong Infrared (IR) effects we recommend exposing the film at a maximum of ISO 25 and using an R72 dark red infrared filter or deeper infrared filter. Standard Red 25A filters are not recommended. Individualized exposure testing is necessary to realize optimal results. Here is the R72 IR by LEE Filters 4 x 4 Infrared (87C) Polyester Filter B&H # LE87C44 which is a gel, not glass or resin. You cut and tape it to the lens. Here is a list of all 30.5mm IR filters we have. https://bhpho.to/2mo9aYU. Here is a site that lists other possible filters for IR film. https://bit.ly/2LjLwYb