The Heliopan 72mm #15 Dark Yellow Filter is 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    72mm 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 72mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. 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: 2. Will the original lens cap fit on with this uv filter installed?

A: Most likely yes but it depends on which lens you have.

Q: 3. Will this hood cause vignetting if used with a 20mm lens on a full frame camera?

A: As the Heliopan 72mm Screw-in Rubber Lens Hood is a universal lens hood, Heliopan does not list a specific focal length or lens for which this lens hood is designed for usage. However, when using a wide angle lens, do note that by rolling back the lens hood, its opening can be made to correspond with a wide-angle lens's angle of view so that vignetting is reduced or eliminated. However, I recommend testing on your own 20mm lens to see if it vignettes, and note that this item may be returned within 30 days of purchase date for a refund or exchange if it does not work for your usage needs.

Q: 4. Will this hood work with a 28mm lens on a full-frame Nikon dlsr without vignetting?

A: This lens hood would not vignette on a 28mm lens mounted on a full frame camera when it is rolled back.

Q: 5. If this lens hood is used in Sony FE 16-35 mm F4.0 ZA, will it cause vignetting?

A: Yes on 16 mm.

Q: 6. Is the front diameter of the lens hood is the same as it is in the back? Can a 72mm lens cap clip to the front of the hood?

A: Yes a 72mm lens cap can fit this hood.

Q: 7. Does this cover affect the ability to quickly put filters on and off?

A: The bumper can be mounted atop filters, and also has filter threads on its outside to further mount filters to. If you mount filters on the lens before it, and wanted to swap them, it would require you remove the bumper also. A UV protection filter would be good to have on before the bumper because that is one you'd likely be leaving on all the time. If you were going to use temporary filters you could thereby easily mount them to the outside of the bumper.

Q: 8. Does the front bumper screw into the lens filter that is installed on a lens, or does the lens filter screw into the bumper after the bumper is screwed onto the lens?

A: The front bumper screws onto the lens like a filter. You can have filters mounted onto the lens, and as long as they have a front filter thread the bumber will connect to the filter. The bumper also has front threads to allow filters to be mounted.

Q: 9. Will this hood fit my Sigma 17-70mm f/2.8-4 DC Macro HSM Lens f/Sony??

A: No, you will still need to use a wide angle hood, because at 17mm it still a wide angle lens. If you use a telephoto hood everything but the 70mm focal length will vignette.

Q: 10. 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.