Heliopan Bay 1 KB15 (80A) Color Conversion Glass Filter

BH #HEKB15B1 • MFR #710025
Heliopan
Heliopan Bay 1 KB15 (80A) Color Conversion Glass Filter
Key Features
  • Rugged Brass Filter Ring
  • High Quality Schott Glass
The slightly denser Heliopan Bay 1 KB15 (80A) Color Conversion Glass Filter is recommended for daylight color reversal film with artificial light from the popular 60-100W halogen bulbs commonly used in lights aimed at the ceiling. With weaker incandescent bulbs, there will again be that pleasant warm tone for moody interior photographs.

Let's say you're at a family gathering and you've brought your camera and want to take some photos of this once-a-year gathering. You have traditional daylight balanced film but find yourself in a room filled with table lamps. If left unfiltered, your photos will turn out yellowish. Under certain circumstances, perhaps a nice effect but not flattering in terms of skin tones or what our eyes are used to seeing or expecting. Enter the 80A filter!...

Special Order
Expected availability: 4-6 weeks
$51.17

Important Notice

  • This item is noncancelable and nonreturnable.

Heliopan Bay 1 KB15 (80A) Color Conversion Glass Filter

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Heliopan 710025 Overview

The slightly denser Heliopan Bay 1 KB15 (80A) Color Conversion Glass Filter is recommended for daylight color reversal film with artificial light from the popular 60-100W halogen bulbs commonly used in lights aimed at the ceiling. With weaker incandescent bulbs, there will again be that pleasant warm tone for moody interior photographs.

Let's say you're at a family gathering and you've brought your camera and want to take some photos of this once-a-year gathering. You have traditional daylight balanced film but find yourself in a room filled with table lamps. If left unfiltered, your photos will turn out yellowish. Under certain circumstances, perhaps a nice effect but not flattering in terms of skin tones or what our eyes are used to seeing or expecting. Enter the 80A filter!...

This filter allows you to "balance", i.e. bring back, correct color tone to your images. There is some loss of film speed that may require the use of a tripod but, at least, your photos will demonstrate the proper tonality they so richly deserve.

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.

Note:
This filter is specific to lenses with Rollei's exclusive B1 (Bay 1) filter size
Heliopan cuts, grinds, polishes and coats their filters with the same techniques and equipment as used for the finest German camera lenses.
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.

80 Series Color Conversion Chart

80A increases color temperature from 3200-5500 Kelvin (commonly used with 3200K lamps)
80B increases color temperature from 3400-5500 Kelvin (commonly used with photoflood lamps)
80C increases color temperature from 3800-5500 Kelvin (commonly used with flashbulbs)
80D increases color temperature from 4100-5500 Kelvin (commonly used to remove extreme orange or red)

Heliopan 710025 Specs

TypeColor Conversion
SizeBay 1
GradeKB15 (80A)
Filter Factor2.2 (+1.25 stops) (approx)
Multi-CoatedNot Applicable
RotatingNot Applicable
EffectBalances daylight film for use with most standard tungsten lighting, studio lighting and copy stand lighting
ApplicationUsed to shoot daylight film under artificial (household) lighting conditions
Color TemperatureIncreases color temperature from 3200-5500 Kelvin
ConstructionSchott Glass
Front Filter Thread Size Bay 1
Front Lens Cap SizeBay 1
Packaging Info
Package Weight0.1 lb
Box Dimensions (LxWxH)3.3 x 2.8 x 0.4"
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