The Heliopan 49mm #29 Dark Red Filter for Photographyis 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    49mm Front Filter Threads    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 threading with 49mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. What is the filter factor for this lens? Am I losing a full stop or less?

A: The filter factor for the Hoya Intensifier is 1.4, and you only lose a half a stop.

Q: 2. Do any owners have problems with the metal buckles scratching the camera?

A: When Mounting the camera to the strap, it is important to make sure the metal buckles are a bit above the camera body to prevent scratching.

Q: 3. Does Nisi adapter hold a regular 49mm UV filter?

A: Yes, the NiSi Filter Adapter for Ricoh GR III (49mm) would allow you to connect a 49mm circular filter to the Ricoh GR III Digital Camera.

Q: 4. What does the '630" designation mean for B+W filters?

A: B+W does not describe what 630 means. It is only a model designation.

Q: 5. So... it's like a pro mist?

A: Yes this filter is similar to pro mist where it blooms highlights and smooths skin tones.

Q: 6. Can this filter be used in videography to produce a cinema like image?

A: Yes, the Moment 67mm CineBloom Diffusion Filter (10% Density) can produce a cinema look. It is like a diffusion filter and will help soften the shot and or video.

Q: 7. How do the sizes run? What size would be recommended for a small man, jacket size 36 short, 5’5”, 130 lb?

A: In the Haukland 7-in-1 Photography Jacket, all sizes are european sizes and have a regular to loose fit. For flexibility, you might order one size larger than usual. The model is wearing size L. He is 6’1” tall and weighs 198lbs so I would recommend X-small for a small man, jacket size 36, short, 5’5”, and 130 lb.

Q: 8. Does this work with GR 3x?

A: Yes, Will allow an end-user to adapt the lens of a GR III camera to accept the NiSi 49mm filter holder or conventional 49mm filters.

Q: 9. Does this include a silver lens ring as shown in the pictures?

A: Yes it includes the adaptor and silver lens ring.

Q: 10. With a filter, does this adapter provide enough clearance for the lens to further extend in macro mode? The lens extends a few mm further in macro mode.

A: The NISI 49mm Filter Adapter for the Ricoh GR IIIX should have no issue with extending the lens further while in macro mode.