The Heliopan Bay 2 #29 Dark Red Filter is a basic contrast filter, primarily for use with black and white film, that completely absorbs blue and green tones, enhances reds, and increases contrast for outdoor photography. It is suitable for use in tri-color separations and for photographing faded documents. There is an approximate 8-12x filter factor with this filter, requiring an increase of 3 to 3.5 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.

#29 Filter for Enhanced B&W Contrast    8-12x Filter Factor, +3-3.5 Stops    Bay 2 Front Filter Mount    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Dark red contrast filter for black and white film significantly darkens blue and green tones, cuts through haze, and increases overall contrast.

Suitable for tri-color separations as well as reproduction photography of faded documents.

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 mounts with Bay 2 front filter mount permits combining with other filters.

Related Questions and Answers

Q: 1. Does it have speakers? How far does it go down in height i.e. how many inces between the monitor lower edge and the table top?

A: Yes, the ASUS VP299CL 29" HDR Monitor (BH #ASVP299CL), does have have built-in speakers. The bottom of the monitor is roughly 1.5'' inches away from the surface.

Q: 2. Can it be rotated to vertical / portrait mode?

A: The ASUS VP299CL 29" HDR Monitor does not allow rotation into portrait mode using the included stand. However aftermarket mounts can be used to achieve this dimension of movement.

Q: 3. Thanks! Another qq. When the blue light filter is set to max, will it fully eliminate the blue light and show a yellow hue?

A: The ASUS VP299CL 29" HDR Monitor's blue light filter will significantly reduce blue light, creating an orange tint, but it will not eliminate it completely.

Q: 4. is the outside made of a hard or soft material? I'm worried about it bending.

A: The outside is soft, but semi-rigid to protect the filters.

Q: 5. Is this IR filter, or any B+W IR filters, the equivalent of the Hoya 77mm R72 infrared filter?

A: Yes, the B+W 695/092 IR Dark Red MRC Basic Filter (77mm) may have similar performance to the Hoya R72 filter. A few other alternatives would be the Haida 77mm NanoPro IR720 Filter, B&H # HAHD459977, or the Kolari Vision Infrared Lens Filter (77mm, 720nm) BH #KO720NM77, or the Urth 77mm Infrared (R72) Lens Filter (Plus+), B&H # URUIRPL77, would also work for your usage needs.

Q: 6. Hello! is the holder ring provided with this filter? I need to fit this filter on a 52mm thread lens

A: The Heliopan Series 8 Infrared RG 850 Filter listed above is designed for usage on lenses that have a Series 8 bayonet filter mount. We have no lens mount adapters that would be compatible to connect this filter onto a lens that uses 52mm filter threads. If you own a lens with 52mm filter threads, I would instead recommend the Heliopan 52mm RG 850 Infrared Filter, B&H # HEIR85052, for your usage needs.

Q: 7. Does it have a shoulder strap?

A: Unfortunately this does not come with a shoulder strap since there is no designated place to attach one.

Q: 8. Will this hold 82mm round filters?

A: Yes, the Lowepro GearUp Filter Pouch 100 (Gray) will hold 82mm filters.

Q: 9. Is this pouch capable of storing the Lee 100 filter holder [old model] and as well as their 105mm C. Polarizer?

A: Yes it large enough to hold your Lee filter with room to spare

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.