The Heliopan Bay 2 #15 Dark Yellow Glass Filter for Black and White Film is commonly used for a more than noticeable increase in contrast with black and white films.

When a #8 or #12 Yellow isn't enough, the #15 is the next stop. This filter adds a significant amount of contrast to black and white film. And, should this filter not be sufficient, an orange filter is recommended, followed by red, which will provide maximum contrast with black and white film.

Heliopan Lichtfilter-Technik of Munich, Germany has changed their black anodized brass filter rings on most Heliopan non-rotating filters to their "slim" mounts. These slim mounts are made of black anodized brass stock and have so little rim in front of the lens (5.4mm) that they will not vignette with lenses as short as 21mm.

Heliopan offers a wide selection of sizes, screw-in, series, bayonet, square and rectangular filters including digital, video, center weighted, graduated, wide angle, Kaesmann polarizers, drop-in polarizers, etc.

Rugged Brass Filter Ring    High Quality Schott Glass

Especially useful for clear contrast between blue sky with clouds and foreground

Enhances landscapes, marine scenes and aerial photography with more dramatic effects than Yellow 8

All Heliopan screw-in type and series size filters are mounted in precision black anodized brass rings to eliminate binding or cross threading and to ensure optimal alignment

Filters still retain front threads for a lens cap, a lens hood or even stacking a second filter

The portion of the Heliopan slim filters that are in front of the lens have been reduced in thickness by 37% over the former mount

Heliopan cuts, grinds, polishes and coats their filters with the same techniques and equipment as used for the finest German camera lenses

Related Questions and Answers

Q: 1. Can this Bay III filter be used on a Rolleiflex 2.8C along with the Rollei lens hood?

A: No, the Heliopan Bay 3 Clear Protection Filter can not be used at the same time as the lens hood.

Q: 2. Will this fit my Yashica D?

A: Yes the Nisha Bay 1 Yellow Filter should fit the Yashica D as it has a Bay I (Bayonet type I) filter size.

Q: 3. Will this fit a Yashicaflex A2?

A: Unfortunately, no, it does not appear that the Yashicaflex A2 Twin-lens Reflex Camera used the Bay 1 Filter Mount, so it would not be compatible for use with the Nisha Bay 1 Yellow Filter.

Q: 4. will this fit a Nikon 15mm lens?

A: It will probably fit but be too thick and will most likely hit the mirror.

Q: 5. How many drive cages are included?

A: The Fractal Design Meshify 2 Mid-Tower Case (Black) has 6 x 2.5/3.5" Drive Bays, 2 x 2.5" Drive Brackets, and 1 x 2.5/3.5" Drive Multibracket.

Q: 6. Will this fit a Rolleicord VB2?

A: Researching online I see that camera accepts Bay 1 filters so Nisha Bay 1 Yellow Filter will work.

Q: 7. How thick is this Schneider 4x4 filter? Will it fit in a Lee Filters 100mm foundation kit if I install the 4mm optional spacers? Thanks!

A: This filter is 4mm thick.

Q: 8. Can a Bay 1 lens hood be used over the Nisha Bay 1 filters?

A: A lens hood would not fit over the Nisha Bay 1 Yellow Filter.

Q: 9. Can this case fit a rtx 4090 graphics card?

A: The Fractal Design Meshify 2 Mid-Tower Case supports GPU up to 19.3".

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.